Compartment cooling / heating system for vehicle

Abstract

The present invention relates to a cabin cooling / heating system for a vehicle including a front cabin, a rear cabin, and a cabin floor of the rear cabin, the cabin cooling / heating system including: a heat pump system configured to provide cold water or hot water by circulating a refrigerant; an air conditioning device fluidly connected to the heat pump system and configured to receive the cold water or the hot water from the heat pump system, provide cold air or warm air by performing heat exchange between internal air or external air of the vehicle and the cold water or the hot water, and blow the cold air or the warm air to a front cabin; a floor heat exchanger installed in the cabin floor and fluidly connected to the air conditioning device, the floor heat exchanger configured to receive cold water or hot water from the air conditioning device and cool or heat the cabin floor by circulating the cold water or hot water through the cabin floor; and a line switching valve module in which cold water or hot water that has been circulated through the floor heat exchanger is returned to the heat pump system.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to and the benefits of Korean Patent Application No. 10-2023-0158985 filed in the Korean Intellectual Property Office on November 16, 2023, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present invention relates to a vehicle cabin cooling / heating system, and more particularly to a vehicle cabin cooling / heating system capable of improving fast-acting cooling / heating characteristics and rapidly reducing cabin temperature differences. Background Art

[0004] Generally speaking, an air conditioning device for a vehicle refers to a device that is embedded in a vehicle and is configured to cool or heat the vehicle cabin in summer or winter. In addition, the air conditioning device may be configured to remove frost or the like formed on the windshield on rainy days or in winter so that the driver can ensure front / rear vision. The air conditioning device generally has a heating system and a cooling system, and cools or heats the vehicle cabin by selectively introducing outside air or inside air of the vehicle, heating or cooling the air, and then blowing the air into the vehicle cabin.

[0005] Generally, an air conditioning device for a vehicle cools or heats a vehicle cabin by blowing cold or warm air generated using a heat pump into the vehicle cabin through vents. However, due to various obstacles such as vent locations, vehicle seats, and passengers, air may not circulate smoothly, which may cause a significant temperature difference between cabin locations during the initial cooling / heating process. In particular, the temperature of the rear seats may be very high or very low.

[0006] In order to compensate for the cabin temperature imbalance during the above-mentioned initial cooling / heating process, seats, anti-vibration pads, doors, etc. are equipped with heating wires, radiation heaters, thermoelectric elements, etc. However, heating wires, radiation heaters, and thermoelectric elements have low energy efficiency, which may increase electric power consumption and shorten the driving distance of environmentally friendly vehicles.

[0007] With the development of autonomous driving technology and the proliferation of special vehicles, the vehicle cabin area is increasingly used as an office space, rest space, game space, etc. As a result, the vehicle cabin space is gradually increasing. Therefore, the demand for improving the fast-acting cooling / heating characteristics of the vehicle and eliminating the cabin temperature imbalance during the initial cooling / heating process is rapidly increasing.

[0008] The above information disclosed in this Background section only enhances understanding of the background of the invention. Therefore, this Background section may contain information that does not form the prior art that is already known to a person of ordinary skill in the art. Summary of the invention

[0009] The present invention provides a vehicle cabin cooling / heating system that can implement the function of cooling or heating the vehicle cabin floor. This is achieved by using an air conditioning device for cooling or heating the cabin. Therefore, the cabin cooling / heating system improves the fast-acting cooling / heating characteristics and quickly makes the cabin temperature uniform.

[0010] According to an embodiment of the present invention, a vehicle compartment cooling / heating system is disclosed. The vehicle includes a front compartment, a rear compartment, and a compartment floor of the rear compartment. The vehicle compartment cooling / heating system includes: a heat pump system configured to provide cold water or hot water by circulating a refrigerant; an air conditioning device fluidly connected to the heat pump system. The air conditioning device may be configured to: receive cold water or hot water from the heat pump system, provide cold air or warm air by performing heat exchange between the interior air or the exterior air of the vehicle and the cold water or hot water, and blow the cold air or warm air to the front compartment. The compartment cooling / heating system also includes: a floor heat exchanger installed in the compartment floor and fluidly connected to the air conditioning device, configured to receive cold water or hot water from the air conditioning device, and cool or heat the compartment floor by circulating the cold water or hot water through the compartment floor; and a pipeline switching valve module, disposed between the air conditioning device and the floor heat exchanger, and configured to deliver the cold water or hot water that has passed through the air conditioning device to the floor heat exchanger, or return the cold water or hot water to the heat pump system. The cold or hot water that has circulated through the floor heat exchanger is returned to the heat pump system.

[0011] The cabin cooling / heating system for a vehicle also includes a water pump module fluidly connected to the heat pump system and configured to pump cold water or hot water to the heat pump system.

[0012] The heat pump system includes: a heat pump heat exchanger configured to provide cold water or hot water by exchanging heat between water and refrigerant; and a heat pump configured to provide hot water by circulating the refrigerant through a refrigerant circulation line to supply heat energy to the water in the heat pump heat exchanger, or to provide cold water by recovering heat energy from the water in the heat pump heat exchanger. The air conditioning device includes: an air passage configured to communicate the interior air or the exterior air of the vehicle with the front compartment, the air passage defining a passage through which the interior air or the exterior air of the vehicle flows to the front compartment. The air conditioning device also includes: a blower configured to blow the interior air or the exterior air of the vehicle into the air passage; a heater core disposed in the air passage and configured to receive hot water from the heat pump heat exchanger and heat the interior air or the exterior air of the vehicle in the air passage; and a cooler disposed in the air passage and configured to receive cold water from the heat pump heat exchanger and cool the interior air or the exterior air of the vehicle in the air passage. The pipeline switching valve module includes: a first pipeline switching valve, which is fluidly connected to the heater core and configured to receive hot water from the heater core and selectively deliver the hot water to the floor heat exchanger or the heat pump heat exchanger, and a second pipeline switching valve, which is fluidly connected to the cooler and configured to receive cold water from the cooler and selectively deliver the cold water to the floor heat exchanger or the heat pump heat exchanger.

[0013] The air conditioning device further includes a damper configured to selectively open or close an air passage through which interior air or exterior air of the vehicle flows to the heater core.

[0014] The air conditioning device can cool or heat the front cabin in response to the operation of the cabin cooling / heating system. In addition, the pipeline switching valve module controls whether to cool or heat the cabin floor through the floor heat exchanger.

[0015] A cabin cooling / heating system for a vehicle according to another embodiment of the present invention includes: a heat pump system configured to provide cold water or hot water by circulating a refrigerant; an air conditioning device fluidly connected to the heat pump system. The air conditioning device may be configured to receive cold water or hot water from the heat pump system, provide cold air or warm air by performing heat exchange between the interior air or exterior air of the vehicle and the cold water or hot water, and blow the cold air or warm air to the front compartment. The cabin cooling / heating system also includes a second air conditioning device fluidly connected to the air conditioning device. The second air conditioning device may be configured to receive cold water or hot water from the air conditioning device, provide cold air or warm air by performing heat exchange between the interior air or exterior air of the vehicle and the cold water or hot water, and blow the cold air or warm air to the rear compartment. The cabin cooling / heating system also includes a floor heat exchanger installed in the cabin floor. The floor heat exchanger may be fluidly connected to the second air conditioning device, and is configured to receive cold water or hot water from the second air conditioning device, and is configured to cool or heat the cabin floor by circulating the cold water or hot water through the cabin floor. In addition, the cabin cooling / heating system further includes: a pipeline switching valve module, which is arranged between the second air conditioning device and the floor heat exchanger. The pipeline switching valve module can be configured to deliver the cold water or hot water that has passed through the second air conditioning device to the floor heat exchanger, or to return the cold water or hot water to the heat pump system. The cold water or hot water that has circulated through the floor heat exchanger returns to the heat pump system.

[0016] The cabin cooling / heating system for a vehicle also includes a water pump module fluidly connected to the heat pump system and configured to pump cold water or hot water to the heat pump system.

[0017] The heat pump system includes: a heat pump heat exchanger configured to provide cold water or hot water by exchanging heat between water and refrigerant; and a heat pump configured to provide hot water by circulating the refrigerant through a refrigerant circulation line to supply heat energy to the water in the heat pump heat exchanger, or to provide cold water by recovering heat energy from the water in the heat pump heat exchanger. The air conditioning device includes: an air passage configured to communicate the interior air or the exterior air of the vehicle with the front compartment, the air passage defining a passage through which the interior air or the exterior air of the vehicle flows to the front compartment. The air conditioning device also includes: a blower configured to blow the interior air or the exterior air of the vehicle into the air passage; a heater core disposed in the air passage and configured to receive hot water from the heat pump heat exchanger and heat the interior air or the exterior air of the vehicle in the air passage; and a cooler disposed in the air passage and configured to receive cold water from the heat pump heat exchanger and cool the interior air or the exterior air of the vehicle in the air passage. The second air conditioning device includes: a second air passage configured to communicate the interior air or the exterior air of the vehicle with the rear compartment, the second air passage defining a passage through which the interior air or the exterior air of the vehicle flows to the rear compartment. The second air conditioning device also includes: a second blower configured to blow the interior air or the exterior air of the vehicle into the second air passage; a second heater core disposed in the second air passage and configured to receive hot water from the heater core and heat the interior air or the exterior air of the vehicle in the second air passage; and a second cooler disposed in the second air passage and configured to receive cold water from the cooler and cool the interior air or the exterior air of the vehicle in the second air passage. The pipeline switching valve module includes: a first pipeline switching valve fluidly connected to the second heater core and configured to receive hot water from the second heater core and selectively deliver the hot water to a floor heat exchanger or a heat pump heat exchanger; and a second pipeline switching valve fluidly connected to the second cooler and configured to receive cold water from the second cooler and selectively deliver the cold water to the floor heat exchanger or the heat pump heat exchanger.

[0018] The air conditioning device further includes a damper configured to selectively open or close an air passage through which the interior air or the exterior air of the vehicle flows to the heater core. The second air conditioning device further includes a second damper configured to selectively open or close a second air passage through which the interior air or the exterior air of the vehicle flows to the second heater core.

[0019] The second air conditioning device is in communication with the air conditioning device, and when the second blower operates, the rear compartment is cooled or heated.

[0020] The air conditioning device cools or heats the front cabin in response to the operation of the cabin cooling / heating system for the vehicle. In addition, whether the cabin floor is cooled or heated by the floor heat exchanger is controlled by the pipeline switching valve module.

[0021] A cabin cooling / heating system for a vehicle according to another embodiment of the present invention includes: a heat pump system configured to provide cold water or hot water by circulating a refrigerant; an air conditioning device fluidly connected to the heat pump system and configured to: receive cold water or hot water from the heat pump system, provide cold air or warm air by heat exchange between the interior air or exterior air of the vehicle and the cold water or hot water, and blow the cold air or warm air to the front compartment. The cabin cooling / heating system also includes: a second air conditioning device fluidly connected to the heat pump system. The second air conditioning device is configured to: receive cold water or hot water from the heat pump system, provide cold air or warm air by heat exchange between the interior air or exterior air of the vehicle and the cold water or hot water, and blow the cold air or warm air to the rear compartment. The cabin cooling / heating system also includes: a floor heat exchanger installed in the cabin floor and fluidly connected to the second air conditioning device. The floor heat exchanger is configured to receive cold water or hot water from the second air conditioning device, and is configured to cool or heat the cabin floor by circulating cold water or hot water through the cabin floor. The cabin cooling / heating system further includes: a pipeline switching valve module, which is disposed between the second air conditioning device and the floor heat exchanger and is configured to transfer the cold water or hot water that has passed through the second air conditioning device to the floor heat exchanger, or to return the cold water or hot water to the heat pump system. The cold water or hot water that has circulated through the floor heat exchanger can be returned to the heat pump system.

[0022] The cabin cooling / heating system further includes a line addition valve module configured to selectively connect the heat pump system to the second air conditioning device.

[0023] The cabin cooling / heating system for a vehicle further includes a water pump module that is fluidly connected to the heat pump system and is configured to pump cold water or hot water in the heat pump system.

[0024] The heat pump system includes: a heat pump heat exchanger configured to provide cold water or hot water by exchanging heat between water and refrigerant; and a heat pump configured to provide hot water by circulating the refrigerant through a refrigerant circulation line to supply heat energy to the water in the heat pump heat exchanger, or to provide cold water by recovering heat energy from the water in the heat pump heat exchanger. The air conditioning device includes: an air passage configured to communicate the interior air or the exterior air of the vehicle with the front compartment, the air passage defining a passage through which the interior air or the exterior air of the vehicle flows to the front compartment. The air conditioning device also includes: a blower configured to blow the interior air or the exterior air of the vehicle into the air passage; a heater core disposed in the air passage and configured to receive hot water from the heat pump heat exchanger and heat the interior air or the exterior air of the vehicle in the air passage; and a cooler disposed in the air passage and configured to receive cold water from the heat pump heat exchanger and cool the interior air or the exterior air of the vehicle in the air passage. The second air conditioning device includes: a second air passage configured to communicate the interior air or exterior air of the vehicle with the rear compartment, the second air passage defining a passage through which the interior air or exterior air of the vehicle flows to the rear compartment. The second air conditioning device also includes: a second blower configured to blow the interior air or exterior air of the vehicle into the second air passage; a second heater core disposed in the second air passage and configured to heat the interior air or exterior air of the vehicle in the second air passage; and a second cooler disposed in the second air passage and configured to cool the interior air or exterior air of the vehicle in the second air passage. The pipeline additional valve module includes: a first pipeline additional valve configured to selectively connect the heater core to the second heater core to selectively supply hot water in the heater core to the second heater core; and a second pipeline additional valve configured to selectively connect the cooler to the second cooler to selectively supply cold water in the cooler to the second cooler. The pipeline switching valve module includes: a first pipeline switching valve, which is fluidly connected to the second heater core and is configured to receive hot water from the second heater core and selectively deliver the hot water to the floor heat exchanger or the heat pump heat exchanger; and a second pipeline switching valve, which is fluidly connected to the second cooler and is configured to receive cold water from the second cooler and selectively deliver the cold water to the floor heat exchanger or the heat pump heat exchanger.

[0025] The air conditioning device further includes a damper configured to selectively open or close an air passage through which the interior air or the exterior air of the vehicle flows to the heater core. In addition, the second air conditioning device further includes a second damper configured to selectively open or close a second air passage through which the interior air or the exterior air of the vehicle flows to the second heater core.

[0026] The air conditioning device cools or heats the front cabin in response to the operation of the cabin cooling / heating system. In addition, the pipeline additional valve module controls whether the rear cabin is cooled or heated by the second air conditioning device. In addition, the pipeline switching valve module controls whether the cabin floor is cooled or heated by the floor heat exchanger.

[0027] According to the present invention, hot or cold water prepared by the heat pump system can be supplied not only to the air conditioner to cool or heat the cabin, but also to the heat exchanger to cool or heat the cabin floor. Therefore, the heat pump system can simultaneously cool or heat the cabin by using the air conditioner and cool or heat the cabin floor by using the heat exchanger. Therefore, cooling / heating performance and fast-acting characteristics can be ensured.

[0028] Furthermore, the temperature distribution in the vehicle cabin can be quickly made uniform by cooling or heating the vehicle cabin using an air conditioner and by cooling or heating the vehicle cabin floor using a heat exchanger.

[0029] In addition, the cabin comfort can be improved and the use of cabin space can be expanded by cooling or heating the cabin floor.

[0030] In addition, the cooling or heating process can be implemented by a heat pump system, thereby improving energy efficiency. Therefore, electric power consumption can be reduced and the driving distance can be increased.

[0031] Other effects obtained or expected by the embodiments of the present invention are directly or implicitly disclosed in the detailed description of the embodiments of the present invention. In other words, various effects expected according to the embodiments of the present invention are disclosed in the detailed description described below. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Embodiments of the present invention may be better understood with reference to the following description in conjunction with the accompanying drawings, in which like reference numerals are used to designate identical or functionally similar elements, and in which:

[0033] Figure 1 is a schematic diagram of a vehicle equipped with a cabin cooling / heating system for the vehicle according to an embodiment of the present invention;

[0034] Figure 2 is a schematic block diagram of a cabin cooling / heating system for a vehicle according to an embodiment of the present invention;

[0035] Figure 3 A schematic block diagram showing a situation in which an air conditioning device of a vehicle cabin cooling / heating system according to an embodiment of the present invention is used to cool or heat a cabin;

[0036] Figure 4 A schematic block diagram showing a case in which an air conditioning device of a vehicle cabin cooling / heating system according to an embodiment of the present invention is used to heat a cabin;

[0037] Figure 5 A schematic block diagram showing a situation in which an air conditioning device of a vehicle cabin cooling / heating system according to an embodiment of the present invention is used to cool a cabin;

[0038] Figure 6 A schematic block diagram showing a case in which an air conditioning device of a cabin cooling / heating system for a vehicle according to an embodiment of the present invention is used to cool or heat a cabin and a floor heat exchanger is used to cool or heat a cabin floor;

[0039] Figure 7 A schematic block diagram showing a case in which an air conditioning device of a cabin cooling / heating system for a vehicle according to an embodiment of the present invention is used to heat a cabin and a floor heat exchanger is used to heat a cabin floor;

[0040] Figure 8 A schematic block diagram showing a case in which an air conditioning device of a vehicle cabin cooling / heating system according to an embodiment of the present invention is used to cool a cabin and a floor heat exchanger is used to cool a cabin floor;

[0041] Fig. 9 is a schematic diagram of a vehicle equipped with a cabin cooling / heating system for the vehicle according to another embodiment of the present invention;

[0042] Fig.10 is a schematic block diagram of a cabin cooling / heating system for a vehicle according to another embodiment of the present invention;

[0043] Fig.11 A schematic block diagram showing a situation in which an air conditioning device of a vehicle cabin cooling / heating system according to another embodiment of the present invention is used to cool or heat a cabin;

[0044] Fig.12 A schematic block diagram showing a situation in which an air conditioning device of a vehicle cabin cooling / heating system according to another embodiment of the present invention is used to cool a cabin;

[0045] Fig.13 A schematic block diagram showing a case in which an air conditioning device of a vehicle cabin cooling / heating system according to another embodiment of the present invention is used to heat a cabin;

[0046] Fig.14 A schematic block diagram showing a situation in which a first air conditioning device and a second air conditioning device of a vehicle cabin cooling / heating system according to another embodiment of the present invention are used to cool or heat a cabin;

[0047] Fig.15A schematic block diagram showing a situation in which a first air conditioning device and a second air conditioning device of a vehicle cabin cooling / heating system according to another embodiment of the present invention are used to cool a cabin;

[0048] Fig.16 A schematic block diagram showing a case in which a first air conditioning device and a second air conditioning device of a vehicle cabin cooling / heating system according to another embodiment of the present invention are used to heat a cabin;

[0049] Fig.17 A schematic block diagram showing a case in which a first air conditioning device and a second air conditioning device of a cabin cooling / heating system for a vehicle according to another embodiment of the present invention are used to cool or heat a cabin and a floor heat exchanger is used to cool or heat a cabin floor;

[0050] Fig.18 A schematic configuration diagram showing a case in which a first air conditioning device and a second air conditioning device of a vehicle cabin cooling / heating system according to another embodiment of the present invention are used to cool a cabin and a floor heat exchanger is used to cool a cabin floor;

[0051] Fig.19 A schematic configuration diagram showing a case in which a first air conditioning device and a second air conditioning device of a vehicle cabin cooling / heating system according to another embodiment of the present invention are used to heat a cabin and a floor heat exchanger is used to heat a cabin floor;

[0052] Fig. 20 is a schematic block diagram of a cabin cooling / heating system for a vehicle according to yet another embodiment of the present invention;

[0053] Fig.21 A schematic block diagram showing a situation in which an air conditioning device of a vehicle cabin cooling / heating system according to still another embodiment of the present invention is used to cool or heat a cabin;

[0054] Fig. 22 A schematic block diagram showing a situation in which an air conditioning device of a vehicle cabin cooling / heating system according to still another embodiment of the present invention is used to cool a cabin;

[0055] Fig.23 A schematic block diagram showing a case in which a first air conditioning device of a vehicle cabin cooling / heating system according to yet another embodiment of the present invention is used to heat a cabin;

[0056] Fig.24 A schematic block diagram showing a situation in which a first air conditioning device and a second air conditioning device of a vehicle cabin cooling / heating system according to yet another embodiment of the present invention are used to cool or heat a cabin;

[0057] Fig.25 A schematic block diagram showing a situation in which a first air conditioning device and a second air conditioning device of a vehicle cabin cooling / heating system according to yet another embodiment of the present invention are used to cool a cabin;

[0058] Fig.26 A schematic block diagram showing a case in which a first air conditioning device and a second air conditioning device of a vehicle cabin cooling / heating system according to still another embodiment of the present invention are used to heat a cabin;

[0059] Fig. 27 A schematic block diagram showing a case in which a first air conditioning device and a second air conditioning device of a vehicle cabin cooling / heating system according to still another embodiment of the present invention are used to cool or heat a cabin and a floor heat exchanger is used to cool or heat a cabin floor;

[0060] Fig.28 A schematic block diagram showing a case in which a first air conditioning device and a second air conditioning device of a vehicle cabin cooling / heating system according to still another embodiment of the present invention are used to cool a cabin and a floor heat exchanger is used to cool a cabin floor;

[0061] Fig.29 A schematic block diagram showing a case in which a first air conditioning device and a second air conditioning device of a cabin cooling / heating system for a vehicle according to still another embodiment of the present invention are used to heat a cabin and a floor heat exchanger is used to heat a cabin floor.

[0062] It should be understood that the accompanying drawings are not necessarily drawn to scale, but provide a somewhat simplified representation of various preferred features that demonstrate the basic principles of the invention. For example, the specific design features of the present invention, including specific size, orientation, location and shape, should be determined in part by the specific intended application and use environment. DETAILED DESCRIPTION

[0063] The terms used herein are only used to describe specific embodiments and are not intended to limit the present invention. Unless the context clearly provides otherwise, the singular expressions used herein are intended to include plural expressions. It should be understood that the terms "include" and / or "comprising" used in this specification mean the presence of features, integers, steps, operations, constituent elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, constituent elements, components and / or their groups. The term "and / or" used herein includes any one or all combinations of the listed related items.

[0064] As used in this specification, the term "mobility" or "mobility of" or similar terms include: general land mobile devices, passenger vehicles, sports utility vehicles (SUVs), buses, trucks, various commercial vehicles, etc. Such terms may also include: marine mobile devices, including various ships; and aerial mobile devices, including aircraft, drones, etc. In addition, such terms may include any object that can be moved by receiving power from a power source. In addition, as used in this specification, the term "mobile device" or "mobile device of" or similar terms should be understood to include hybrid mobile devices, electric mobile devices, plug-in hybrid mobile devices, hydrogen-powered mobile devices, and mobile devices using alternative fuels (e.g., fuels derived from sources other than petroleum). As mentioned in this specification, hybrid mobile devices include mobile devices having two or more power sources, such as gasoline-powered mobile devices and electric mobile devices. Mobile devices according to embodiments of the present invention include not only manually operated mobile devices, but also mobile devices that are autonomously and / or automatically operated to a certain extent.

[0065] In addition, it should be understood that one or more of the following methods or aspects thereof may be performed by at least one controller. The term "controller" may refer to a hardware device including a memory and a processor. The memory is configured to store program instructions, and the processor is specifically programmed to execute the program instructions to perform one or more processes described in more detail below. As described herein, a controller may control the operation of a unit, module, component, device, etc. In addition, it should be understood that, as recognized by a person of ordinary skill in the art, the following methods may be performed by a device including a controller and one or more other components.

[0066] In addition, the controller of the present invention may be implemented as a non-transitory computer-readable recording medium containing executable program instructions executed by a processor. Examples of computer-readable recording media include, but are not limited to, read-only memory (ROM), random access memory (RAM), compact disk (CD)-ROM, magnetic tape, floppy disk, flash drive, smart card, and optical data storage device. The computer-readable recording medium may also be distributed throughout a computer network so that program instructions can be stored and executed in a distributed manner, such as through a telematics server or a controller area network (CAN).

[0067] When a controller, component, device, element, part, unit, module, etc. of the present invention is described as having a purpose or performing an operation, function, etc., the controller, component, device, element, part, unit, or module should be considered herein as "configured to" meet the purpose or perform the operation or function. Each controller, component, device, element, part, unit, module, etc. may be embodied separately or include a processor and a memory, such as a non-transitory computer-readable medium, as part of the device.

[0068] Hereinafter, embodiments of the present invention are described in detail with reference to the accompanying drawings.

[0069] Figure 1 FIG. 1 is a schematic diagram of a vehicle equipped with a cabin cooling / heating system for the vehicle according to an embodiment of the present invention.

[0070] like Figure 1 As shown, a vehicle 10 equipped with a cabin cooling / heating system for a vehicle according to an embodiment of the present invention includes a cabin in which passengers can be located. The cabin includes a front cabin 12 and a rear cabin 14. The front cabin 12 is provided at the front of the vehicle, and a driver's seat and a passenger seat are located in the front cabin 12. The rear cabin 14 is provided at the rear of the vehicle, and a rear seat is located in the rear cabin 14. The front cabin 12 and the rear cabin 14 can be separated in various ways. As an example, the front cabin 12 and the rear cabin 14 can be separated by the backrests of the front seats.

[0071] Figure 2 1 is a schematic block diagram of a cabin cooling / heating system for a vehicle according to an embodiment of the present invention.

[0072] like Figure 2 As shown, the cabin cooling / heating system for a vehicle according to an embodiment of the present invention includes: a heat pump system 20 , a water pump module 30 and an air conditioning device 40 .

[0073] The heat pump system 20 is configured to provide cold water or hot water by using a refrigerant circulating in a heat pump, and supplies cold water or hot water. The heat pump system 20 includes a heat pump heat exchanger 24. The heat pump heat exchanger 24 provides cold water or hot water by exchanging heat between water and the refrigerant. The heat pump heat exchanger 24 may include a heat exchanger located at one position and a heat exchanger located at another position.

[0074] The water pump module 30 is fluidly connected to the heat pump system 20 through the first suction line module L100 and is configured to pump cold or hot water from the heat pump system 20. The water pump module 30 is connected to the air conditioning device 40 through the first supply line module L110 and is configured to pass the pumped cold or hot water through the air conditioning device 40.

[0075] The air conditioning device 40 is fluidically connected to the water pump module 30 through the first supply line module L110, and receives cold water or hot water pumped by the water pump module 30. The air conditioning device 40 provides cold air or warm air by performing heat exchange between cold water and air or between hot water and air. Figure 1As shown, the air conditioning device 40 is installed in the front passenger compartment 12 and is configured to cool or heat the passenger compartment by blowing cold air or warm air into the passenger compartment. The air conditioning device 40 is connected to the heat pump system 20 through the return line module L130, so that cold water or hot water returns to the heat pump system 20 through the return line module L130.

[0076] The cabin cooling / heating system for a vehicle further includes a floor heat exchanger 80 and a line switching valve module 90 .

[0077] The floor heat exchanger 80 is fluidly connected to the air conditioning device 40 through the second supply line module L120, and is configured to receive cold water or hot water from the air conditioning device 40. Figure 1 As shown, the floor heat exchanger 80 is installed in the cabin floor of the rear compartment 14, and is configured to cool or heat the cabin floor of the rear compartment 14 by circulating cold water or hot water supplied from the air conditioning device 40 through the cabin floor. For example, the floor heat exchanger 80 may be a water pipe uniformly embedded in the cabin floor of the rear compartment 14. In this case, an example in which the floor heat exchanger 80 is installed in the cabin floor of the rear compartment 14 is described. However, the position of the floor heat exchanger 80 is not limited thereto. The floor heat exchanger 80 may be installed in at least one of the cabin floor of the front compartment 12 and the cabin floor of the rear compartment 14, and may be configured to cool or heat the cabin floor. The floor heat exchanger 80 is connected to the return line module L130 so that the cold water or hot water that has circulated through the floor heat exchanger 80 is returned to the heat pump system 20 through the return line module L130.

[0078] The pipeline switching valve module 90 is installed in the second supply pipeline module L120 connecting the air conditioning device 40 and the floor heat exchanger 80. The pipeline switching valve module 90 is configured to deliver cold water or hot water from the air conditioning device 40 to the floor heat exchanger 80 or the flow switching pipeline module L140. In other words, the pipeline switching valve module 90 selectively and fluidly connects the air conditioning device 40 to the floor heat exchanger 80 or the flow switching pipeline module L140. The flow switching pipeline module L140 is fluidly connected to the return pipeline module L130 while bypassing the floor heat exchanger 80. Therefore, depending on the switching operation of the pipeline switching valve module 90, the cold water or hot water in the air conditioning device 40 may flow to the return pipeline module L130 while passing through the floor heat exchanger 80, or flow to the return pipeline module L130 through the flow switching pipeline module L140 without passing through the floor heat exchanger 80.

[0079] In the following, reference Figure 3 A case where the air conditioning apparatus of the vehicle compartment cooling / heating system according to the embodiment of the present invention cools or heats the vehicle compartment is described.

[0080] Figure 31 is a schematic block diagram showing a case in which the air conditioning device of the vehicle compartment cooling / heating system according to the embodiment of the present invention is used to cool or heat the vehicle compartment.

[0081] like Figure 3 As shown, in order to cool or heat the cabin using the air conditioning device 40 of the cabin cooling / heating system for the vehicle, the heat pump heat exchanger 24 provides cold water or hot water by heat exchange with the refrigerant. The water pump module 30 delivers the cold water or hot water to the air conditioning device 40 through the first supply line module L110 by pumping the cold water or hot water via the first suction line module L100. The air conditioning device 40 provides cold air or warm air by heat exchange between cold water and air or between hot water and air, and cools or heats the cabin by blowing the cold air or warm air into the cabin. In addition, the cold water or hot water that has been heat exchanged with the air flows to the second supply line module L120, and the pipeline switching valve module 90 connects the second supply line module L120 to the flow switch line module L140, so that the cold water or hot water returns to the heat pump heat exchanger 24 through the flow switch line module L140 and the return line module L130.

[0082] In the following, reference Figure 4 and 5 A case in which the air conditioning apparatus of the vehicle compartment cooling / heating system according to the embodiment of the present invention is used to cool or heat the vehicle compartment is described in more detail.

[0083] Figure 4 1 is a configuration diagram showing a case in which the air conditioning device of the vehicle compartment cooling / heating system according to the embodiment of the present invention is used to heat the vehicle compartment. Figure 5 1 is a configuration diagram showing a case in which an air conditioning device of a vehicle compartment cooling / heating system according to an embodiment of the present invention is used to cool a vehicle compartment.

[0084] like Figure 4 and Figure 5 As shown, the heat pump system 20 also includes a heat pump 22. The heat pump 22 can provide hot water by supplying heat energy to water in the heat pump heat exchanger 24 using the refrigerant circulating through the refrigerant circulation line L200. Alternatively, the heat pump 22 can provide cold water by recovering heat energy from water in the heat pump heat exchanger 24. Typically, the heat pump 22 includes a compressor and an expansion valve. The compressor compresses the refrigerant to increase the temperature of the refrigerant, and delivers the refrigerant with the increased temperature to the heat pump heat exchanger 24 to provide hot water from water. The expansion valve expands the refrigerant to reduce the temperature of the refrigerant, and delivers the refrigerant with the reduced temperature to the heat pump heat exchanger 24 to provide cold water from water. Since the heat pump system 20 is well known to those of ordinary skill in the art, further detailed description thereof is omitted.

[0085] The first suction line module L100 includes: a first hot water suction line L102 and a first cold water suction line L104. The first hot water suction line L102 is connected to the hot water generating part of the heat pump heat exchanger 24, and the hot water provided by the hot water generating part of the heat pump heat exchanger 24 flows to the first hot water suction line L102. The first cold water suction line L104 is connected to the cold water generating part of the heat pump heat exchanger 24, and the cold water provided by the cold water generating part of the heat pump heat exchanger 24 flows to the first cold water suction line L104.

[0086] The water pump module 30 includes a first water pump 32 and a second water pump 34. The first water pump 32 is connected to the first hot water suction line L102 and pumps hot water provided by the hot water generating part of the heat pump heat exchanger 24. The second water pump 34 is connected to the first cold water suction line L104 and pumps cold water provided by the cold water generating part of the heat pump heat exchanger 24.

[0087] The first supply line module L110 includes: a first hot water supply line L112 and a first cold water supply line L114. The first hot water supply line L112 is connected to the first water pump 32, so that the hot water pumped by the first water pump 32 flows to the first hot water supply line L112. The first cold water supply line L114 is connected to the second water pump 34, so that the cold water pumped by the second water pump 34 flows to the first cold water supply line L114.

[0088] The air conditioning device 40 includes an air passage 41 , a heater core 43 , and a cooler 44 provided in the air passage 41 .

[0089] The air passage 41 communicates the interior air or the exterior air of the vehicle 10 with the front cabin 12 so that the exterior air disposed outside the vehicle 10 flows into the front cabin 12. The blower 42 is disposed in the air passage 41 and blows the interior air or the exterior air of the vehicle 10 into the air passage 41. The drawings show that the blower 42 is disposed on the upstream side of the cooler 44. However, the blower 42 may be disposed at any position where the blower 42 can deliver the interior air or the exterior air of the vehicle to the front cabin 12 through the air passage 41.

[0090] The heater core 43 is provided in the air passage 41, provides warm air by heating the interior air or the exterior air of the vehicle passing through the heater core 43, and supplies the warm air into the vehicle compartment, particularly into the front compartment 12, to heat the vehicle compartment. The heater core 43 is connected to the first hot water supply line L112, receives the hot water pumped by the first water pump 32, and heats the interior air or the exterior air of the vehicle passing through the heater core 43 by using the hot water. The damper 45 is installed in the air passage 41 through which the interior air or the exterior air of the vehicle flows from the outside of the vehicle 10 toward the heater core 43. The damper 45 selectively opens or closes the air passage 41 through which the interior air or the exterior air of the vehicle flows to the heater core 43. In other words, the damper 45 can close the air passage 41 through which the interior air or the exterior air of the vehicle flows to the heater core 43 to prevent the interior air or the exterior air of the vehicle from passing through the heater core 43. Alternatively, the damper 45 may open the air passage 41 through which the interior air or exterior air of the vehicle flows toward the heater core 43 to allow the interior air or exterior air of the vehicle to pass through the heater core 43. Therefore, when the damper 45 opens the air passage 41, the interior air or exterior air of the vehicle is heated by the heater core 43. When the damper 45 closes the air passage 41, the interior air or exterior air of the vehicle is not heated by the heater core 43.

[0091] The cooler 44 is provided in the air passage 41, provides cold air by cooling the interior air or the exterior air of the vehicle passing through the cooler 44, and supplies the cold air into the vehicle compartment, particularly into the front compartment 12, to cool the vehicle compartment. The cooler 44 is connected to the first cold water supply line L114, receives cold water pumped by the second water pump 34, and cools the interior air or the exterior air of the vehicle passing through the cooler 44 by using the cold water.

[0092] The second supply line module L120 includes a second hot water supply line L122 and a second cold water supply line L124. The second hot water supply line L122 is fluidly connected to the heater core 43 so that hot water that has been heat-exchanged with the interior air or the exterior air of the vehicle while passing through the heater core 43 flows to the second hot water supply line L122. The second cold water supply line L124 is fluidly connected to the cooler 44 so that cold water that has been heat-exchanged with the interior air or the exterior air of the vehicle while passing through the cooler 44 flows to the second cold water supply line L124.

[0093] The pipeline switching valve module 90 includes: a first pipeline switching valve 91 and a second pipeline switching valve 92. The first pipeline switching valve 91 is fluidly connected to the second hot water supply pipeline L122, so that the hot water flowing along the second hot water supply pipeline L122 flows to the first pipeline switching valve 91. The first pipeline switching valve 91 is selectively connected to the floor heat exchanger 80 or the hot water flow switch pipeline L142 of the flow switch pipeline module L140, so that the hot water selectively flows to the floor heat exchanger 80 or the hot water flow switch pipeline L142. The second pipeline switching valve 92 is fluidly connected to the second cold water supply pipeline L124, so that the cold water flowing along the second cold water supply pipeline L124 flows to the second pipeline switching valve 92. The second pipeline switching valve 92 is selectively connected to the floor heat exchanger 80 or the cold water flow switch pipeline L144 of the flow switch pipeline module L140, so that the cold water selectively flows to the floor heat exchanger 80 or the cold water flow switch pipeline L144.

[0094] The return line module L130 includes: a hot water return line L132 and a cold water return line L134. The hot water return line L132 is fluidly connected to the floor heat exchanger 80 and the hot water flow switch line L142. Therefore, the hot water that has circulated through the floor heat exchanger 80 or the hot water that has flowed to the hot water flow switch line L142 through the first line switching valve 91 is returned to the heat pump system 20 via the hot water return line L132. The cold water return line L134 is fluidly connected to the floor heat exchanger 80 and the cold water flow switch line L144. Therefore, the cold water that has circulated through the floor heat exchanger 80 or the cold water that has flowed to the cold water flow switch line L144 through the second line switching valve 92 is returned to the heat pump system 20 via the cold water return line L134.

[0095] like Figure 4 As shown, in order to heat the cabin by using the air conditioning device 40 of the cabin cooling / heating system for the vehicle, the heat pump system 20 provides hot water by using the refrigerant circulating through the refrigerant circulation line L200. The first water pump 32 delivers the hot water to the heater core 43 by pumping the hot water. The blower 42 blows the interior air or the outside air of the vehicle to the air passage 41, and the damper 45 opens the air passage 41 toward the heater core 43, so that the interior air or the outside air of the vehicle is heated by the hot water passing through the heater core 43 and becomes warm air. The warm air is supplied to the front cabin 12 to heat the cabin. In this case, since cold water is not supplied to the cooler 44, the interior air or the outside air of the vehicle is not cooled by the cooler 44.

[0096] The hot water having passed through the heater core 43 flows to the first line switching valve 91, and the first line switching valve 91 delivers the hot water to the hot water flow switching line L142. In this case, the first line switching valve 91 closes the second hot water supply line L122 toward the floor heat exchanger 80, so that the hot water is not supplied to the floor heat exchanger 80. Therefore, the vehicle cabin floor is not heated, and the hot water is returned to the heat pump system 20 through the hot water return line L132.

[0097] like Figure 5 As shown, in order to cool the cabin by using the air conditioning device 40 of the cabin cooling / heating system for the vehicle, the heat pump system 20 provides cold water by using the refrigerant circulating through the refrigerant circulation line L200. The second water pump 34 delivers the cold water to the cooler 44 by pumping the cold water. The blower 42 blows the interior air or the outside air of the vehicle to the air passage 41, and the interior air or the outside air of the vehicle is cooled by the cold water passing through the cooler 44 and becomes cold air. Hot water is not supplied to the heater core 43, and the damper 45 closes the air passage 41 toward the heater core 43, so that the interior air or the outside air of the vehicle is not heated by the heater core 43.

[0098] The cold water having passed through the cooler 44 flows to the second line switching valve 92, and the second line switching valve 92 delivers the cold water to the cold water flow switching line L144. In this case, the second line switching valve 92 closes the second cold water supply line L124 toward the floor heat exchanger 80, so that the cold water is not supplied to the floor heat exchanger 80. Therefore, the vehicle floor is not cooled, and the cold water is returned to the heat pump system 20 through the cold water return line L134.

[0099] In the following, reference will be made to Figure 6 A case is described in which the air conditioning apparatus of the cabin cooling / heating system for a vehicle according to an embodiment of the present invention is used to cool or heat the cabin, and the floor heat exchanger is used to cool or heat the cabin floor.

[0100] Figure 6 1 is a schematic block diagram showing a case in which an air conditioning device of a cabin cooling / heating system for a vehicle according to an embodiment of the present invention is used to cool or heat a cabin and a floor heat exchanger is used to cool or heat a cabin floor.

[0101] like Figure 6As shown, in order to cool or heat the cabin by using the air conditioning device 40 of the cabin cooling / heating system for the vehicle, and to cool or heat the cabin floor by using the floor heat exchanger 80, the heat pump heat exchanger 24 provides cold water or hot water by heat exchange with the refrigerant. The water pump module 30 delivers cold water or hot water to the air conditioning device 40 through the first supply line module L110 by pumping cold water or hot water via the first suction line module L100. The air conditioning device 40 provides cold air or warm air by heat exchange between cold water and air or between hot water and air, and cools or heats the cabin by blowing cold air or warm air into the cabin. In addition, the cold water or hot water that has been heat exchanged with the air flows to the second supply line module L120, and the line switching valve module 90 connects the second supply line module L120 to the floor heat exchanger 80, so that the cold water or hot water flows to the floor heat exchanger 80 through the second supply line module L120. The cold water or hot water having flowed to the floor heat exchanger 80 cools or heats the cabin floor while circulating through the floor heat exchanger 80. The cold water or hot water having circulated through the floor heat exchanger 80 returns to the heat pump heat exchanger 24 through the return line module L130.

[0102] In the following, reference will be made to Figure 7 , 8 A case in which the air conditioning device of the cabin cooling / heating system for a vehicle according to an embodiment of the present invention is used to cool or heat the cabin, and the floor heat exchanger is used to cool or heat the cabin floor is described in more detail.

[0103] Figure 7 1 is a configuration diagram showing a case where an air conditioning device of a vehicle cabin cooling / heating system according to an embodiment of the present invention is used to heat a cabin and a floor heat exchanger is used to heat a cabin floor, Figure 8 1 is a configuration diagram showing a case in which an air conditioning device of a vehicle compartment cooling / heating system according to an embodiment of the present invention is used to cool a vehicle compartment and a floor heat exchanger is used to cool a vehicle compartment floor.

[0104] like Figure 7As shown, in order to heat the cabin by using the air conditioning device 40 of the cabin cooling / heating system for the vehicle and to heat the cabin floor by using the floor heat exchanger 80, the heat pump system 20 provides hot water by circulating the refrigerant passing through the refrigerant circulation line L200. The first water pump 32 delivers the hot water to the heater core 43 by pumping the hot water. The blower 42 blows the interior air or the outside air of the vehicle to the air passage 41, and the damper 45 opens the air passage 41 toward the heater core 43, so that the interior air or the outside air of the vehicle is heated by the hot water passing through the heater core 43 and becomes warm air. The warm air is supplied to the front cabin 12 to heat the cabin. In this case, since cold water is not supplied to the cooler 44, the interior air or the outside air of the vehicle is not cooled by the cooler 44.

[0105] The hot water having passed through the heater core 43 flows to the first line switching valve 91, and the first line switching valve 91 delivers the hot water to the floor heat exchanger 80. The hot water heats the cabin floor while circulating through the floor heat exchanger 80, and returns to the heat pump system 20 through the hot water return line L132.

[0106] like Figure 8 As shown, in order to cool the cabin by using the air conditioning device 40 of the cabin cooling / heating system for the vehicle and to cool the cabin floor by using the floor heat exchanger 80, the heat pump system 20 provides cold water by circulating the refrigerant through the refrigerant circulation line L200. The second water pump 34 delivers the cold water to the cooler 44 by pumping the cold water. The blower 42 blows the interior air or the outside air of the vehicle to the air passage 41, and the interior air or the outside air of the vehicle is cooled by the cold water passing through the cooler 44 and becomes cold air. Hot water is not supplied to the heater core 43, and the damper 45 closes the air passage 41 toward the heater core 43, so that the interior air or the outside air of the vehicle is not heated by the heater core 43.

[0107] The cold water having passed through the cooler 44 flows to the second line switching valve 92, and the second line switching valve 92 delivers the cold water to the floor heat exchanger 80. The cold water cools the cabin floor while circulating through the floor heat exchanger 80, and returns to the heat pump system 20 via the cold water return line L134.

[0108] Fig. 9 FIG. 1 is a schematic diagram of a vehicle equipped with a cabin cooling / heating system for the vehicle according to another embodiment of the present invention.

[0109] like Fig. 9 As shown, a vehicle 10 equipped with a cabin cooling / heating system for a vehicle according to another embodiment of the present invention includes a cabin in which passengers can be located. The cabin includes a front cabin 12 and a rear cabin 14.

[0110] The air conditioning device 40 is installed in the front compartment 12, and the air conditioning device 40 cools or heats the compartment by blowing cold air or warm air into the front compartment 12. The floor heat exchanger 80 is installed in the compartment floor of the rear compartment 14, and the floor heat exchanger 80 cools or heats the compartment floor by using cold water or hot water circulating through the floor heat exchanger 80. In addition, the second air conditioning device 60 is installed in the rear compartment 14, and the second air conditioning device 60 cools or heats the compartment by blowing cold air or warm air into the rear compartment 14.

[0111] Fig.10 FIG. 4 is a schematic block diagram of a cabin cooling / heating system for a vehicle according to another embodiment of the present invention.

[0112] like Fig.10 As shown, a cabin cooling / heating system for a vehicle according to another embodiment of the present invention includes a heat pump system 20 , a water pump module 30 , an air conditioning device 40 , a second air conditioning device 60 and a floor heat exchanger 80 .

[0113] The heat pump system 20 includes a heat pump heat exchanger 24. The heat pump heat exchanger 24 provides cold water or hot water by exchanging heat between water and a refrigerant.

[0114] The water pump module 30 is fluidly connected to the heat pump system 20 through the first suction line module L100 and is configured to pump cold or hot water from the heat pump system 20. The water pump module 30 is connected to the air conditioning device 40 through the first supply line module L110 and is configured to pass the pumped cold or hot water through the air conditioning device 40.

[0115] The air conditioning device 40 is fluidically connected to the water pump module 30 through the first supply line module L110, and receives cold water or hot water pumped by the water pump module 30. The air conditioning device 40 provides cold air or warm air by performing heat exchange between cold water and air or between hot water and air. Fig. 9 As shown, the air conditioning device 40 is installed in the front compartment 12 , and is configured to cool or heat the compartment by blowing cool air or warm air into the front compartment 12 .

[0116] The second air conditioning device 60 is fluidically connected to the air conditioning device 40 through the second supply line module L120, and receives cold water or hot water from the air conditioning device 40. The second air conditioning device 60 also provides cold air or warm air by performing heat exchange between cold water and air or between hot water and air. Fig. 9 As shown, the second air conditioning device 60 is installed in the rear compartment 14 , and is configured to cool or heat the compartment by blowing cool air or warm air into the rear compartment 14 . Fig.10It is shown that the cold water or hot water that has passed through the air conditioning device 40 flows to the return line module L130 while bypassing the second air conditioning device 60. However, it should be understood that this configuration is provided only for convenience of description. The cold water or hot water that has passed through the air conditioning device 40 always flows to the second air conditioning device 60. However, it should be understood that the figure shows that when the interior air or the outside air of the vehicle passes through the second air conditioning device 60, the cold water or hot water is supplied to the second air conditioning device 60, and when the interior air or the outside air of the vehicle does not pass through the second air conditioning device 60, the cold water or hot water bypasses the second air conditioning device 60.

[0117] The floor heat exchanger 80 is fluidly connected to the second air conditioning device 60 through the second supply line module L120, and is configured to receive cold water or hot water from the second air conditioning device 60. Fig. 9 As shown, the floor heat exchanger 80 is installed in the cabin floor of the rear cabin 14, and is configured to cool or heat the cabin floor of the rear cabin 14 by circulating cold water or hot water supplied from the second air conditioning device 60. The floor heat exchanger 80 is connected to the return line module L130 so that the cold water or hot water that has circulated through the floor heat exchanger 80 is returned to the heat pump system 20 through the return line module L130.

[0118] The cabin cooling / heating system for a vehicle further includes a line switching valve module 90 .

[0119] The pipeline switching valve module 90 is installed in the second supply pipeline module L120 connecting the second air conditioning device 60 and the floor heat exchanger 80. The pipeline switching valve module 90 is configured to deliver cold water or hot water from the second air conditioning device 60 to the floor heat exchanger 80 or the flow switching pipeline module L140. In other words, the pipeline switching valve module 90 selectively and fluidly connects the second air conditioning device 60 to the floor heat exchanger 80 or the flow switching pipeline module L140. The flow switching pipeline module L140 is fluidly connected to the return pipeline module L130 while bypassing the floor heat exchanger 80. Therefore, depending on the switching operation of the pipeline switching valve module 90, the cold water or hot water in the second air conditioning device 60 can flow to the return pipeline module L130 while passing through the floor heat exchanger 80, or flow to the return pipeline module L130 through the flow switching pipeline module L140 without passing through the floor heat exchanger 80.

[0120] In the following, reference will be made to Fig.11 A case is described in which an air conditioning apparatus for a vehicle compartment cooling / heating system according to another embodiment of the present invention is used to cool or heat a vehicle compartment.

[0121] Fig.11 1 is a schematic block diagram showing a case in which an air conditioning device of a vehicle cabin cooling / heating system according to another embodiment of the present invention is used to cool or heat a vehicle cabin.

[0122] like Fig.11 As shown, in order to cool or heat the cabin by using the air conditioning device 40 of the cabin cooling / heating system for the vehicle, the heat pump heat exchanger 24 provides cold water or hot water by exchanging heat with the refrigerant. The water pump module 30 delivers the cold water or hot water to the air conditioning device 40 through the first supply line module L110 by pumping the cold water or hot water through the first suction line module L100. The air conditioning device 40 provides cold air or warm air by exchanging heat between cold water and air or between hot water and air, and cools or heats the cabin by blowing the cold air or warm air into the front cabin 12. In addition, the cold water or hot water that has exchanged heat with the air flows to the second air conditioning device 60 through the second supply line module L120. However, since the interior air or the exterior air of the vehicle is not blown to the second air conditioning device 60, the rear cabin 14 is not cooled or heated by the second air conditioning device 60. The cold water or hot water having flowed to the second air conditioner 60 flows to the flow switching line module L140 through the line switching valve module 90 and returns to the heat pump heat exchanger 24 through the return line module L130.

[0123] In the following, reference will be made to Fig.12 and 13 A case in which an air conditioning apparatus of a vehicle cabin cooling / heating system according to another embodiment of the present invention is used to cool or heat a vehicle cabin is described in more detail.

[0124] Fig.12 is a configuration diagram showing a case in which an air conditioning device of a vehicle compartment cooling / heating system according to another embodiment of the present invention is used to cool a vehicle compartment, Fig.13 1 is a diagram showing a configuration in which an air conditioning device of a vehicle compartment cooling / heating system according to another embodiment of the present invention is used to heat a vehicle compartment.

[0125] like Fig.12 and Fig.13 As shown, the heat pump system 20 further includes a heat pump 22. The heat pump 22 can provide hot water by supplying heat energy to water in the heat pump heat exchanger 24 using refrigerant circulating through the refrigerant circulation line L200, or provide cold water by recovering heat energy from water in the heat pump heat exchanger 24.

[0126] The first suction line module L100 includes: a first hot water suction line L102 and a first cold water suction line L104. The first hot water suction line L102 is connected to the hot water generating part of the heat pump heat exchanger 24. Hot water provided by the hot water generating part of the heat pump heat exchanger 24 flows to the first hot water suction line L102. The first cold water suction line L104 is connected to the cold water generating part of the heat pump heat exchanger 24. Cold water provided by the cold water generating part of the heat pump heat exchanger 24 flows to the first cold water suction line L104.

[0127] The water pump module 30 includes a first water pump 32 and a second water pump 34. The first water pump 32 is connected to the first hot water suction line L102 and pumps hot water provided by the hot water generating part of the heat pump heat exchanger 24. The second water pump 34 is connected to the first cold water suction line L104 and pumps cold water provided by the cold water generating part of the heat pump heat exchanger 24.

[0128] The first supply line module L110 includes a first hot water supply line L112 and a first cold water supply line L114. The first hot water supply line L112 is connected to the first water pump 32 so that hot water pumped by the first water pump 32 flows to the first hot water supply line L112. The first cold water supply line L114 is connected to the second water pump 34 so that cold water pumped by the second water pump 34 flows to the first cold water supply line L114.

[0129] The air conditioning device 40 includes an air passage 41 , a heater core 43 , and a cooler 44 provided in the air passage 41 .

[0130] The air passage 41 communicates the interior or exterior of the vehicle 10 with the front compartment 12 so that air outside the vehicle 10 flows into the front compartment 12. The blower 42 is provided in the air passage 41, and blows the interior air or the exterior air of the vehicle into the air passage 41. The drawings show that the blower 42 is provided on the upstream side of the cooler 44. However, the blower 42 may be provided at any position where the blower 42 can deliver the interior air or the exterior air of the vehicle to the front compartment 12 through the air passage 41.

[0131] The heater core 43 is provided in the air passage 41, and is configured to provide warm air by heating the interior air or the exterior air of the vehicle passing through the heater core 43, and supply the warm air into the vehicle cabin, particularly, the front cabin 12, to heat the vehicle cabin. The heater core 43 is connected to the first hot water supply line L112, receives the hot water pumped by the first water pump 32, and heats the interior air or the exterior air of the vehicle passing through the heater core 43 by using the hot water. The damper 45 is installed in the air passage 41 through which the interior air or the exterior air of the vehicle flows from the outside of the vehicle 10 toward the heater core 43. The damper 45 selectively opens or closes the air passage 41 through which the interior air or the exterior air of the vehicle flows toward the heater core 43. In other words, the damper 45 can close the air passage 41 through which the interior air or the exterior air of the vehicle flows toward the heater core 43 to prevent the interior air or the exterior air of the vehicle from passing through the heater core 43. Alternatively, the damper 45 may open the air passage 41 through which the interior air or the exterior air of the vehicle flows toward the heater core 43, so that the interior air or the exterior air of the vehicle can pass through the heater core 43. Therefore, when the damper 45 opens the air passage 41, the interior air or the exterior air of the vehicle is heated by the heater core 43. When the damper 45 closes the air passage 41, the interior air or the exterior air of the vehicle is not heated by the heater core 43.

[0132] The cooler 44 is provided in the air passage 41, and is configured to provide cold air by cooling the interior air or the exterior air of the vehicle passing through the cooler 44, and supply the cold air into the vehicle compartment, particularly into the front compartment 12, to cool the vehicle compartment. The cooler 44 is connected to the first cold water supply line L114, receives the cold water pumped by the second water pump 34, and cools the interior air or the exterior air of the vehicle passing through the cooler 44 by using the cold water.

[0133] The second supply line module L120 includes a second hot water supply line L122 and a second cold water supply line L124. The second hot water supply line L122 is fluidly connected to the heater core 43 so that hot water that has been heat-exchanged with the interior air or the exterior air of the vehicle while passing through the heater core 43 flows to the second hot water supply line L122. The second cold water supply line L124 is fluidly connected to the cooler 44 so that cold water that has been heat-exchanged with the interior air or the exterior air of the vehicle while passing through the cooler 44 flows to the second cold water supply line L124.

[0134] The second air conditioning device 60 includes a second air passage 61 , a second heater core 63 , and a second cooler 64 provided in the second air passage 61 .

[0135] The second air passage 61 communicates the interior or exterior of the vehicle 10 with the rear compartment 14 so that air outside the vehicle 10 flows into the rear compartment 14. The second blower 62 is provided in the second air passage 61 and blows the interior air or the exterior air of the vehicle into the second air passage 61.

[0136] The second heater core 63 is provided in the second air passage 61, and is configured to provide warm air by heating the vehicle interior air or the outside air passing through the second heater core 63, and supply the warm air into the vehicle compartment, particularly into the rear compartment 14, to heat the vehicle compartment. The second heater core 63 is connected to the second hot water supply line L122, receives the hot water that has passed through the heater core 43, and heats the vehicle interior air or the outside air passing through the second heater core 63 by using the hot water. The second damper 65 is installed in the second air passage 61 through which the vehicle interior air or the outside air flows from the outside of the vehicle 10 toward the second heater core 63. The second damper 65 selectively opens or closes the second air passage 61 through which the vehicle interior air or the outside air flows toward the second heater core 63. In other words, the second damper 65 can close the second air passage 61 through which the vehicle interior air or the outside air flows toward the second heater core 63 to prevent the vehicle interior air or the outside air from passing through the second heater core 63. Alternatively, the second damper 65 may open the second air passage 61 through which the interior air or the exterior air of the vehicle flows toward the second heater core 63 to allow the interior air or the exterior air of the vehicle to pass through the second heater core 63. Therefore, when the second damper 65 opens the second air passage 61, the interior air or the exterior air of the vehicle is heated by the second heater core 63. When the second damper 65 closes the second air passage 61, the interior air or the exterior air of the vehicle is not heated by the second heater core 63.

[0137] The second cooler 64 is provided in the second air passage 61, and is configured to provide cold air by cooling the vehicle interior air or the outside air passing through the second cooler 64, and supply the cold air into the vehicle compartment, particularly into the rear compartment 14, to cool the vehicle compartment. The second cooler 64 is connected to the second cold water supply line L124, receives the cold water that has passed through the second cooler 64, and cools the vehicle interior air or the outside air passing through the second cooler 64 by using the cold water.

[0138] The line switching valve module 90 includes a first line switching valve 91 and a second line switching valve 92. The first line switching valve 91 is fluidly connected to the second hot water supply line L122 so that the hot water having passed through the second heater core 63 flows to the first line switching valve 91. The first line switching valve 91 is selectively connected to the floor heat exchanger 80 or the hot water flow switch line L142 of the flow switch line module L140 so that the hot water selectively flows to the floor heat exchanger 80 or the hot water flow switch line L142. The second line switching valve 92 is fluidly connected to the second cold water supply line L124 so that the cold water having passed through the second cooler 64 flows to the second line switching valve 92. The second line switching valve 92 is selectively connected to the floor heat exchanger 80 or the cold water flow switch line L144 of the flow switch line module L140 so that the cold water selectively flows to the floor heat exchanger 80 or the cold water flow switch line L144.

[0139] The return line module L130 includes: a hot water return line L132 and a cold water return line L134. The hot water return line L132 is fluidly connected to the floor heat exchanger 80 and the hot water flow switch line L142. Therefore, the hot water that has circulated through the floor heat exchanger 80 or the hot water that has flowed to the hot water flow switch line L142 through the first line switching valve 91 is returned to the heat pump system 20 through the hot water return line L132. The cold water return line L134 is fluidly connected to the floor heat exchanger 80 and the cold water flow switch line L144. Therefore, the cold water that has circulated through the floor heat exchanger 80 or the cold water that has flowed to the cold water flow switch line L144 through the second line switching valve 92 is returned to the heat pump system 20 through the cold water return line L134.

[0140] like Fig.12 As shown, in order to cool the cabin by using the air conditioning device 40 of the cabin cooling / heating system for the vehicle, the heat pump system 20 provides cold water by using the refrigerant circulating through the refrigerant circulation line L200. The second water pump 34 delivers the cold water to the cooler 44 by pumping the cold water. The blower 42 blows the interior air or the outside air of the vehicle to the air passage 41, and the interior air or the outside air of the vehicle is cooled by the cold water passing through the cooler 44 and becomes cold air. Hot water is not supplied to the heater core 43, and the damper 45 closes the air passage 41 toward the heater core 43, so that the interior air or the outside air of the vehicle is not heated by the heater core 43. Therefore, the cold air is blown to the front cabin 12 by the air conditioning device 40 to cool the cabin.

[0141] The cold water that has flowed through the cooler 44 flows to the second cooler 64. However, since the second blower 62 is not operating, cold air is not supplied to the rear compartment 14. The cold water that has flowed through the second cooler 64 flows to the second pipeline switching valve 92, and the second pipeline switching valve 92 delivers the cold water to the cold water flow switching pipeline L144. In this case, the second pipeline switching valve 92 closes the second cold water supply pipeline L124 toward the floor heat exchanger 80, so that cold water is not supplied to the floor heat exchanger 80. Therefore, the vehicle compartment floor is not cooled, and the cold water is returned to the heat pump system 20 through the cold water return pipeline L134.

[0142] like Fig.13 As shown, in order to heat the cabin by using the air conditioning device 40 of the cabin cooling / heating system for the vehicle, the heat pump system 20 provides hot water by using the refrigerant circulating through the refrigerant circulation line L200. The first water pump 32 delivers the hot water to the heater core 43 by pumping the hot water. The blower 42 blows the interior air or the outside air of the vehicle to the air passage 41, and the damper 45 opens the air passage 41 toward the heater core 43, so that the interior air or the outside air of the vehicle is heated by the hot water passing through the heater core 43 and becomes warm air. The warm air is supplied to the front cabin 12 to heat the cabin. In this case, since cold water is not supplied to the cooler 44, the interior air or the outside air of the vehicle is not cooled by the cooler 44.

[0143] The hot water that has flowed through the heater core 43 flows to the second heater core 63. However, since the second blower 62 is not operated, warm air is not supplied to the rear compartment 14. The hot water that has flowed through the second heater core 63 flows to the first line switching valve 91, and the first line switching valve 91 delivers the hot water to the hot water flow switching line L142. In this case, the first line switching valve 91 closes the second hot water supply line L122 toward the floor heat exchanger 80, so that the hot water is not supplied to the floor heat exchanger 80. Therefore, the compartment floor is not heated, and the hot water is returned to the heat pump system 20 through the hot water return line L132.

[0144] In the following, reference will be made to Fig.14 A case is described in which an air conditioning device and a second air conditioning device of a vehicle compartment cooling / heating system according to another embodiment of the present invention are used to cool or heat a vehicle compartment.

[0145] Fig.14 1 is a schematic block diagram showing a case in which a first air conditioning device and a second air conditioning device of a vehicle cabin cooling / heating system according to another embodiment of the present invention are used to cool or heat a vehicle cabin.

[0146] like Fig.14As shown, in order to cool or heat the cabin by using the first air conditioning device 40 and the second air conditioning device 60 of the cabin cooling / heating system for the vehicle, the heat pump heat exchanger 24 provides cold water or hot water by heat exchange with the refrigerant. The water pump module 30 delivers the cold water or hot water to the air conditioning device 40 via the first supply line module L110 by pumping the cold water or hot water through the first suction line module L100. The air conditioning device 40 provides cold air or warm air by heat exchange between cold water and air or between hot water and air, and cools or heats the cabin by blowing the cold air or warm air into the front cabin 12. In addition, the cold water or hot water that has been heat exchanged with the air flows to the second air conditioning device 60 through the second supply line module L120. The second air conditioning device 60 provides cold air or warm air by heat exchange between cold water and air or between hot water and air, and cools or heats the cabin by blowing the cold air or warm air into the rear cabin 14. The cold water or hot water having flowed to the second air conditioner 60 flows to the flow switching line module L140 through the line switching valve module 90 and returns to the heat pump heat exchanger 24 through the return line module L130.

[0147] In the following, reference will be made to Fig.15 and 16 A case in which an air conditioning device and a second air conditioning device of a vehicle compartment cooling / heating system according to another embodiment of the present invention are used to cool or heat a vehicle compartment is described in more detail.

[0148] Fig.15 1 is a diagram showing a configuration in which a first air conditioning device and a second air conditioning device of a vehicle compartment cooling / heating system according to another embodiment of the present invention are used to cool a vehicle compartment. Fig.16 1 is a configuration diagram showing a case in which a first air conditioning device and a second air conditioning device of a vehicle compartment cooling / heating system according to another embodiment of the present invention are used to heat a vehicle compartment.

[0149] like Fig.15 As shown, in order to cool the cabin by using the first air conditioning device 40 and the second air conditioning device 60 of the cabin cooling / heating system for the vehicle, the heat pump system 20 provides cold water by using the refrigerant circulating through the refrigerant circulation line L200. The second water pump 34 delivers the cold water to the cooler 44 by pumping the cold water. The blower 42 blows the interior air or the outside air of the vehicle to the air passage 41, and the interior air or the outside air of the vehicle is cooled by the cold water passing through the cooler 44 and becomes cold air. Therefore, the cold air is blown to the front cabin 12 through the air conditioning device 40 to cool the cabin. Hot water is not supplied to the heater core 43, and the damper 45 closes the air passage 41 toward the heater core 43, so that the interior air or the outside air of the vehicle is not heated by the heater core 43.

[0150] The cold water having passed through the cooler 44 flows to the second cooler 64, the second blower 62 blows the interior air or the exterior air of the vehicle to the second air passage 61, and the interior air or the exterior air of the vehicle is cooled by the cold water passing through the second cooler 64 to become cold air. Hot water is not supplied to the second heater core 63, and the second damper 65 closes the second air passage 61, so that the interior air or the exterior air of the vehicle is not heated by the second heater core 63. Therefore, the cold air is blown to the rear compartment 14 through the second air conditioning device 60 to cool the compartment.

[0151] The cold water having passed through the second cooler 64 flows to the second pipeline switching valve 92, and the second pipeline switching valve 92 delivers the cold water to the cold water flow switching pipeline L144. In this case, the second pipeline switching valve 92 closes the second cold water supply pipeline L124 toward the floor heat exchanger 80, so that the cold water is not supplied to the floor heat exchanger 80. Therefore, the vehicle cabin floor is not cooled, and the cold water is returned to the heat pump system 20 through the cold water return pipeline L134.

[0152] like Fig.16 As shown, in order to heat the cabin by using the air conditioning device 40 of the cabin cooling / heating system for the vehicle, the heat pump system 20 provides hot water by using the refrigerant circulating through the refrigerant circulation line L200. The first water pump 32 delivers the hot water to the heater core 43 by pumping the hot water. The blower 42 blows the interior air or the outside air of the vehicle to the air passage 41, and the damper 45 opens the air passage 41 toward the heater core 43, so that the interior air or the outside air of the vehicle is heated by the hot water passing through the heater core 43 and becomes warm air. The warm air is supplied to the front cabin 12 to heat the cabin. In this case, since cold water is not supplied to the cooler 44, the interior air or the outside air of the vehicle is not cooled by the cooler 44.

[0153] The hot water that has passed through the heater core 43 flows to the second heater core 63, the second blower 62 blows the interior air or the outside air of the vehicle to the second air passage 61, and the interior air or the outside air of the vehicle is heated by the hot water that has passed through the second heater core 63 to become warm air. The warm air is supplied to the rear compartment 14 to heat the compartment. In this case, since cold water is not supplied to the second cooler 64, the interior air or the outside air of the vehicle is not cooled by the second cooler 64.

[0154] The hot water having passed through the second heater core 63 flows to the first line switching valve 91, and the first line switching valve 91 delivers the hot water to the hot water flow switching line L142. In this case, the first line switching valve 91 closes the second hot water supply line L122 toward the floor heat exchanger 80, so that the hot water is not supplied to the floor heat exchanger 80. Therefore, the vehicle cabin floor is not heated, and the hot water is returned to the heat pump system 20 through the hot water return line L132.

[0155] In the following, reference will be made to Fig.17 A case is described in which a first air conditioning device and a second air conditioning device of a cabin cooling / heating system for a vehicle according to another embodiment of the present invention are used to cool or heat a cabin, and a floor heat exchanger is used to cool or heat a cabin floor.

[0156] Fig.17 A schematic block diagram showing a case in which a first air conditioning device and a second air conditioning device of a cabin cooling / heating system for a vehicle according to another embodiment of the present invention are used to cool or heat a cabin and a floor heat exchanger is used to cool or heat a cabin floor.

[0157] like Fig.17 As shown, in order to cool or heat the cabin by using the first air-conditioning device 40 and the second air-conditioning device 60 of the cabin cooling / heating system for the vehicle, and to cool or heat the cabin floor by using the floor heat exchanger 80, the heat pump heat exchanger 24 provides cold water or hot water by heat exchange with the refrigerant, and the water pump module 30 delivers the provided cold water or hot water to the air-conditioning device 40 through the first supply line module L110 by pumping the cold water or hot water through the first suction line module L100. The air-conditioning device 40 provides cold air or warm air by heat exchange between cold water and air or between hot water and air, and cools or heats the cabin by blowing the cold air or warm air into the front cabin 12. In addition, the cold water or hot water that has been heat exchanged with the air flows to the second air-conditioning device 60 through the second supply line module L120. The second air-conditioning device 60 provides cold air or warm air by heat exchange between cold water and air or between hot water and air, and cools or heats the cabin by blowing the cold air or warm air into the rear cabin 14. The line switching valve module 90 connects the second air conditioning device 60 to the floor heat exchanger 80 so that the cold water or hot water having flowed to the second air conditioning device 60 flows to the floor heat exchanger 80 through the second supply line module L120. The cold water or hot water having flowed to the floor heat exchanger 80 cools or heats the cabin floor while circulating through the floor heat exchanger 80. The cold water or hot water having circulated through the floor heat exchanger 80 returns to the heat pump heat exchanger 24 through the return line module L130.

[0158] In the following, reference will be made to Fig.18 and 19 A case in which the first and second air conditioning devices of the cabin cooling / heating system for a vehicle according to another embodiment of the present invention are used to cool or heat the cabin, and the floor heat exchanger is used to cool or heat the cabin floor is described in more detail.

[0159] Fig.18 A schematic configuration diagram showing a case in which a first air conditioning device and a second air conditioning device of a vehicle cabin cooling / heating system according to another embodiment of the present invention are used to cool a cabin and a floor heat exchanger is used to cool a cabin floor. Fig.19 A schematic configuration diagram showing a case in which a first air conditioning device and a second air conditioning device of a vehicle cabin cooling / heating system according to another embodiment of the present invention are used to heat a cabin and a floor heat exchanger is used to heat a cabin floor.

[0160] like Fig.18 As shown, in order to cool the cabin by using the first air conditioning device 40 and the second air conditioning device 60 of the cabin cooling / heating system for the vehicle, and to cool the cabin floor by using the floor heat exchanger 80, the heat pump system 20 provides cold water by circulating the refrigerant passing through the refrigerant circulation line L200. The second water pump 34 delivers the cold water to the cooler 44 by pumping the cold water. The blower 42 blows the interior air or the outside air of the vehicle to the air passage 41, and the interior air or the outside air of the vehicle is cooled by the cold water passing through the cooler 44 and becomes cold air. Therefore, the cold air is blown to the front cabin 12 through the air conditioning device 40 to cool the cabin. Hot water is not supplied to the heater core 43, and the damper 45 closes the air passage 41 toward the heater core 43, so that the interior air or the outside air of the vehicle is not heated by the heater core 43.

[0161] The cold water having passed through the cooler 44 flows to the second cooler 64, the second blower 62 blows the interior air or the exterior air of the vehicle to the second air passage 61, and the interior air or the exterior air of the vehicle is cooled by the cold water passing through the second cooler 64 to become cold air. Hot water is not supplied to the second heater core 63, and the second damper 65 closes the second air passage 61, so that the interior air or the exterior air of the vehicle is not heated by the second heater core 63. Therefore, the cold air is blown to the rear compartment 14 through the second air conditioning device 60 to cool the compartment.

[0162] The cold water having passed through the second cooler 64 flows to the second line switching valve 92, and the second line switching valve 92 delivers the cold water to the floor heat exchanger 80. The cold water cools the cabin floor while circulating through the floor heat exchanger 80, and returns to the heat pump system 20 through the cold water return line L134.

[0163] like Fig.19As shown, in order to heat the cabin by using the air conditioning device 40 of the cabin cooling / heating system for the vehicle, the heat pump system 20 provides hot water by using the refrigerant circulating through the refrigerant circulation line L200. The first water pump 32 delivers the hot water to the heater core 43 by pumping the hot water. The blower 42 blows the interior air or the outside air of the vehicle to the air passage 41, and the damper 45 opens the air passage 41 toward the heater core 43, so that the interior air or the outside air of the vehicle is heated by the hot water passing through the heater core 43 and becomes warm air. The warm air is supplied to the front cabin 12 to heat the cabin. In this case, since cold water is not supplied to the cooler 44, the interior air or the outside air of the vehicle is not cooled by the cooler 44.

[0164] The hot water that has passed through the heater core 43 flows to the second heater core 63, the second blower 62 blows the interior air or the outside air of the vehicle to the second air passage 61, and the interior air or the outside air of the vehicle is heated by the hot water that has passed through the second heater core 63 to become warm air. The warm air is supplied to the rear compartment 14 to heat the compartment. In this case, since cold water is not supplied to the second cooler 64, the interior air or the outside air of the vehicle is not cooled by the second cooler 64.

[0165] The hot water having passed through the second heater core 63 flows to the first line switching valve 91, and the first line switching valve 91 delivers the hot water to the floor heat exchanger 80. The hot water heats the cabin floor while circulating through the floor heat exchanger 80, and returns to the heat pump system 20 through the hot water return line L132.

[0166] Fig. 20 FIG. 4 is a schematic block diagram of a cabin cooling / heating system for a vehicle according to yet another embodiment of the present invention.

[0167] like Fig. 20 As shown, a cabin cooling / heating system for a vehicle according to yet another embodiment of the present invention includes a heat pump system 20 , a water pump module 30 , an air conditioning device 40 , a second air conditioning device 60 and a floor heat exchanger 80 .

[0168] The heat pump system 20 includes a heat pump heat exchanger 24. The heat pump heat exchanger 24 provides cold water or hot water by exchanging heat between water and a refrigerant.

[0169] The water pump module 30 is fluidly connected to the heat pump system 20 through the first suction line module L100, and is configured to pump cold or hot water from the heat pump system 20. The water pump module 30 is connected to the air conditioning device 40 through the first supply line module L110, and is configured to allow the pumped cold or hot water to pass through the air conditioning device 40.

[0170] The air conditioning device 40 is fluidically connected to the water pump module 30 through the first supply line module L110, and receives cold water or hot water pumped by the water pump module 30. The air conditioning device 40 provides cold air or warm air by performing heat exchange between cold water and air or between hot water and air. Fig. 9 As shown, the air conditioning device 40 is installed in the front compartment 12, and is configured to cool or heat the compartment by blowing cold air or warm air into the front compartment 12. The air conditioning device 40 is fluidly connected to the second supply line module L120 so that cold water or hot water having passed through the air conditioning device 40 flows to the second supply line module L120. Fig. 20 The second supply line module L120 is shown to be directly connected to the return line module L130. However, it should be understood that this configuration is provided only for convenience of description. It should be understood that the second supply line module L120 is selectively connected to the return line module L130 through the floor heat exchanger 80 or the flow switch line module L140.

[0171] The second air conditioning device 60 is fluidically connected to the water pump module 30 through the third supply line module L150, and receives cold water or hot water pumped by the water pump module 30. The second air conditioning device 60 also provides cold air or warm air by performing heat exchange between cold water and air or between hot water and air. Fig. 9 As shown, the second air conditioning device 60 is installed in the rear compartment 14 , and is configured to cool or heat the compartment by blowing cool air or warm air into the rear compartment 14 .

[0172] The floor heat exchanger 80 is fluidly connected to the second air conditioning device 60 through the second supply line module L120, and is configured to receive cold water or hot water from the second air conditioning device 60. Fig. 9 As shown, the floor heat exchanger 80 is installed in the cabin floor of the rear cabin 14, and is configured to cool or heat the cabin floor of the rear cabin 14 by circulating cold water or hot water supplied from the second air conditioning device 60. The floor heat exchanger 80 is connected to the return line module L130 so that the cold water or hot water that has circulated through the floor heat exchanger 80 is returned to the heat pump system 20 through the return line module L130.

[0173] The cabin cooling / heating system for a vehicle further includes a line additional valve module 95 and a line switching valve module 90 .

[0174] The pipeline additional valve module 95 is installed in the third supply pipeline module L150 connecting the water pump module 30 and the second air conditioning device 60. The pipeline additional valve module 95 selectively delivers or does not deliver the cold water or hot water pumped by the water pump module 30 to the second air conditioning device 60 through the third supply pipeline module L150. Therefore, the cold water or hot water pumped by the water pump module 30 is always supplied to the air conditioning device 40, but is selectively supplied to the second air conditioning device 60 through the pipeline additional valve module 95.

[0175] The pipeline switching valve module 90 is installed in the second supply pipeline module L120 connecting the second air conditioner 60 and the floor heat exchanger 80. The pipeline switching valve module 90 is configured to deliver cold water or hot water from the second air conditioner 60 to the floor heat exchanger 80 or the flow switching pipeline module L140. In other words, the pipeline switching valve module 90 selectively and fluidly connects the second air conditioner 60 to the floor heat exchanger 80 or the flow switching pipeline module L140. The flow switching pipeline module L140 is fluidly connected to the return pipeline module L130 while bypassing the floor heat exchanger 80. Therefore, based on the switching operation of the pipeline switching valve module 90, the cold water or hot water in the second air conditioner 60 can flow to the return pipeline module L130 while passing through the floor heat exchanger 80, or flow to the return pipeline module L130 through the flow switching pipeline module L140 without passing through the floor heat exchanger 80.

[0176] In the following, reference will be made to Fig.21 A case is described in which an air conditioning apparatus of a vehicle compartment cooling / heating system according to still another embodiment of the present invention is used to cool or heat a vehicle compartment.

[0177] Fig.21 1 is a schematic block diagram showing a situation in which an air conditioning device of a vehicle cabin cooling / heating system according to still another embodiment of the present invention is used to cool or heat a vehicle cabin.

[0178] like Fig.21 As shown, in order to cool or heat the cabin by using the air conditioning device 40 of the cabin cooling / heating system for the vehicle, the heat pump heat exchanger 24 provides cold water or hot water by exchanging heat with the refrigerant. The water pump module 30 delivers the cold water or hot water to the air conditioning device 40 through the first supply line module L110 by pumping the cold water or hot water through the first suction line module L100. The air conditioning device 40 provides cold air or warm air by exchanging heat between cold water and air or between hot water and air, and cools or heats the cabin by blowing the cold air or warm air into the front cabin 12. The cold water or hot water that has flowed through the air conditioning device 40 flows to the second supply line module L120, and then returns to the heat pump heat exchanger 24 by the line switching valve module 90 through the flow switch line module L140 and the return line module L130.

[0179] In addition, the line addition valve module 95 closes the third supply line module L150 so that the cold water or hot water pumped by the water pump module 30 is not supplied to the second air conditioner 60 .

[0180] In the following, reference will be made to Fig. 22 and 23 A case in which the air conditioning apparatus of the vehicle compartment cooling / heating system according to still another embodiment of the present invention is used to cool or heat the vehicle compartment is described in more detail.

[0181] Fig. 22 A configuration diagram showing a case in which an air conditioning device of a vehicle compartment cooling / heating system according to still another embodiment of the present invention is used to cool a vehicle compartment; Fig.23 It is a configuration diagram showing a case in which an air conditioning device of a vehicle compartment cooling / heating system according to still another embodiment of the present invention is used to heat a vehicle compartment.

[0182] like Fig. 22 and Fig.23 As shown, the heat pump system 20 further includes a heat pump 22. The heat pump 22 can provide hot water by supplying heat energy to water in the heat pump heat exchanger 24 using refrigerant circulating through the refrigerant circulation line L200, or provide cold water by recovering heat energy from water in the heat pump heat exchanger 24.

[0183] The first suction line module L100 includes: a first hot water suction line L102 and a first cold water suction line L104. The first hot water suction line L102 is connected to the hot water generating part of the heat pump heat exchanger 24, and the hot water provided by the hot water generating part of the heat pump heat exchanger 24 flows to the first hot water suction line L102. The first cold water suction line L104 is connected to the cold water generating part of the heat pump heat exchanger 24, and the cold water provided by the cold water generating part of the heat pump heat exchanger 24 flows to the first cold water suction line L104.

[0184] The water pump module 30 includes a first water pump 32 and a second water pump 34. The first water pump 32 is connected to the first hot water suction line L102 and pumps hot water provided by the hot water generating part of the heat pump heat exchanger 24. The second water pump 34 is connected to the first cold water suction line L104 and pumps cold water provided by the cold water generating part of the heat pump heat exchanger 24.

[0185] The first supply line module L110 includes: a first hot water supply line L112 and a first cold water supply line L114. The first hot water supply line L112 is connected to the first water pump 32, so that the hot water pumped by the first water pump 32 flows to the first hot water supply line L112. The first cold water supply line L114 is connected to the second water pump 34, so that the cold water pumped by the second water pump 34 flows to the first cold water supply line L114.

[0186] The air conditioning device 40 includes an air passage 41 , and a heater core 43 and a cooler 44 provided in the air passage 41 .

[0187] The air passage 41 enables the interior or exterior of the vehicle 10 to communicate with the front compartment 12, so that air outside the vehicle 10 flows into the front compartment 12. The blower 42 is provided in the air passage 41, and blows the interior air or the exterior air of the vehicle into the air passage 41. The drawings show that the blower 42 is provided on the upstream side of the cooler 44. However, the blower 42 may be provided at any position where the blower 42 can deliver the interior air or the exterior air of the vehicle to the front compartment 12 through the air passage 41.

[0188] The heater core 43 is provided in the air passage 41, and is configured to provide warm air by heating the interior air or the exterior air of the vehicle passing through the heater core 43, and supply the warm air into the vehicle cabin, particularly, the front cabin 12, to heat the vehicle cabin. The heater core 43 is connected to the first hot water supply line L112, receives the hot water pumped by the first water pump 32, and heats the interior air or the exterior air of the vehicle passing through the heater core 43 by using the hot water. The damper 45 is installed in the air passage 41 through which the interior air or the exterior air of the vehicle flows from the outside of the vehicle 10 toward the heater core 43. The damper 45 selectively opens or closes the air passage 41 through which the interior air or the exterior air of the vehicle flows toward the heater core 43. In other words, the damper 45 can close the air passage 41 through which the interior air or the exterior air of the vehicle flows toward the heater core 43 to prevent the interior air or the exterior air of the vehicle from passing through the heater core 43. Alternatively, the damper 45 may open the air passage 41 through which the interior air or the exterior air of the vehicle flows toward the heater core 43, so that the interior air or the exterior air of the vehicle can pass through the heater core 43. Therefore, when the damper 45 opens the air passage 41, the interior air or the exterior air of the vehicle is heated by the heater core 43. When the damper 45 closes the air passage 41, the interior air or the exterior air of the vehicle is not heated by the heater core 43.

[0189] The cooler 44 is provided in the air passage 41, and is configured to provide cold air by cooling the interior air or the exterior air of the vehicle passing through the cooler 44, and supply the cold air into the vehicle compartment, particularly the front compartment 12, to cool the vehicle compartment. The cooler 44 is connected to the first cold water supply line L114, receives the cold water pumped by the second water pump 34, and cools the interior air or the exterior air of the vehicle passing through the cooler 44 by using the cold water.

[0190] The second supply line module L120 includes: a second hot water supply line L122 and a second cold water supply line L124. The second hot water supply line L122 is fluidly connected to the heater core 43, so that hot water that has been heat-exchanged with the interior air or the outside air of the vehicle while passing through the heater core 43 flows to the second hot water supply line L122. The second cold water supply line L124 is fluidly connected to the cooler 44, so that cold water that has been heat-exchanged with the interior air or the outside air of the vehicle while passing through the cooler 44 flows to the second cold water supply line L124.

[0191] Furthermore, the line addition valve module 95 is provided in the first supply line module L110 , and selectively and fluidly connects the first supply line module L110 to the third supply line module L150 .

[0192] The pipeline additional valve module 95 includes: a first pipeline additional valve 96 and a second pipeline additional valve 97, and the third supply pipeline module L150 includes: a third hot water supply pipeline L151 and a third cold water supply pipeline L152. The first pipeline additional valve 96 selectively connects the first hot water supply pipeline L112 to the third hot water supply pipeline L151, and delivers or does not deliver a portion of the hot water flowing along the first hot water supply pipeline L112 to the third hot water supply pipeline L151. The second pipeline additional valve 97 selectively connects the first cold water supply pipeline L114 to the third cold water supply pipeline L152, and delivers or does not deliver a portion of the cold water flowing along the first cold water supply pipeline L114 to the third cold water supply pipeline L152.

[0193] The second air conditioning device 60 includes a second air passage 61 , a second heater core 63 , and a second cooler 64 provided in the second air passage 61 .

[0194] The second air passage 61 enables the interior or exterior of the vehicle 10 to communicate with the rear compartment 14 so that air outside the vehicle 10 flows into the rear compartment 14. The second blower 62 is provided in the second air passage 61 and blows the interior air or the exterior air of the vehicle into the second air passage 61.

[0195] The second heater core 63 is provided in the second air passage 61, and is configured to provide warm air by heating the vehicle interior air or the outside air passing through the second heater core 63, and supply the warm air into the vehicle compartment, particularly into the rear compartment 14, to heat the vehicle compartment. The second heater core 63 is connected to the third hot water supply line L151, receives a portion of the hot water pumped by the first water pump 32, and heats the vehicle interior air or the outside air passing through the second heater core 63 by using the hot water. The second damper 65 is installed in the second air passage 61 through which the vehicle interior air or the outside air flows from the outside of the vehicle 10 toward the second heater core 63. The second damper 65 selectively opens or closes the second air passage 61 through which the vehicle interior air or the outside air flows toward the second heater core 63. In other words, the second damper 65 can close the second air passage 61 through which the vehicle interior air or the outside air flows toward the second heater core 63 to prevent the vehicle interior air or the outside air from passing through the second heater core 63. Alternatively, the second damper 65 may open the second air passage 61 through which the interior air or the exterior air of the vehicle flows toward the second heater core 63, so that the interior air or the exterior air of the vehicle can pass through the second heater core 63. Therefore, when the second damper 65 opens the second air passage 61, the interior air or the exterior air of the vehicle is heated by the second heater core 63. When the second damper 65 closes the second air passage 61, the interior air or the exterior air of the vehicle is not heated by the second heater core 63.

[0196] The second cooler 64 is provided in the second air passage 61, and is configured to provide cold air by cooling the vehicle interior air or the outside air passing through the second cooler 64, and supply the cold air into the vehicle compartment, particularly into the rear compartment 14, to cool the vehicle compartment. The second cooler 64 is connected to the third cold water supply line L152, receives a portion of the cold water pumped by the second water pump 34, and cools the vehicle interior air or the outside air passing through the second cooler 64 by using the cold water.

[0197] The pipeline switching valve module 90 includes: a first pipeline switching valve 91 and a second pipeline switching valve 92. The first pipeline switching valve 91 is fluidly connected to the second hot water supply pipeline L122, so that the hot water that has flowed through the heater core 43 or the second heater core 63 flows to the first pipeline switching valve 91. The first pipeline switching valve 91 is selectively connected to the floor heat exchanger 80 or the hot water flow switch pipeline L142 of the flow switch pipeline module L140, so that the hot water selectively flows to the floor heat exchanger 80 or the hot water flow switch pipeline L142. The second pipeline switching valve 92 is fluidly connected to the second cold water supply pipeline L124, so that the cold water that has flowed through the cooler 44 or the second cooler 64 flows to the second pipeline switching valve 92. The second pipeline switching valve 92 is selectively connected to the floor heat exchanger 80 or the cold water flow switch pipeline L144 of the flow switch pipeline module L140, so that the cold water selectively flows to the floor heat exchanger 80 or the cold water flow switch pipeline L144.

[0198] The return line module L130 includes: a hot water return line L132 and a cold water return line L134. The hot water return line L132 is fluidly connected to the floor heat exchanger 80 and the hot water flow switch line L142. Therefore, the hot water that has circulated through the floor heat exchanger 80 or the hot water that has flowed to the hot water flow switch line L142 through the first line switching valve 91 is returned to the heat pump system 20 through the hot water return line L132. The cold water return line L134 is fluidly connected to the floor heat exchanger 80 and the cold water flow switch line L144. Therefore, the cold water that has circulated through the floor heat exchanger 80 or the cold water that has flowed to the cold water flow switch line L144 through the second line switching valve 92 is returned to the heat pump system 20 through the cold water return line L134.

[0199] like Fig. 22 As shown, in order to cool the cabin by using the air conditioning device 40 of the cabin cooling / heating system for the vehicle, the heat pump system 20 provides cold water by using the refrigerant circulating through the refrigerant circulation line L200. The second water pump 34 delivers the cold water to the cooler 44 by pumping the cold water. The blower 42 blows the interior air or the outside air of the vehicle to the air passage 41, and the interior air or the outside air of the vehicle is cooled by the cold water passing through the cooler 44 and becomes cold air. Hot water is not supplied to the heater core 43, and the damper 45 closes the air passage 41 toward the heater core 43, so that the interior air or the outside air of the vehicle is not heated by the heater core 43. Therefore, the cold air is blown to the front cabin 12 by the air conditioning device 40 to cool the cabin.

[0200] The cold water having passed through the cooler 44 flows to the second line switching valve 92 through the second cold water supply line L124, and the second line switching valve 92 delivers the cold water to the cold water flow switching line L144. In this case, the second line switching valve 92 closes the second cold water supply line L124 toward the floor heat exchanger 80, so that the cold water is not supplied to the floor heat exchanger 80. Therefore, the vehicle floor is not cooled, and the cold water is returned to the heat pump system 20 through the cold water return line L134.

[0201] Furthermore, the second line additional valve 97 does not connect the first cold water supply line L114 to the third cold water supply line L152 , so that cold water does not flow to the second cooler 64 .

[0202] like Fig.23 As shown, in order to heat the cabin by using the air conditioning device 40 of the cabin cooling / heating system for the vehicle, the heat pump system 20 provides hot water by using the refrigerant circulating through the refrigerant circulation line L200. The first water pump 32 delivers the hot water to the heater core 43 by pumping the hot water. The blower 42 blows the interior air or the outside air of the vehicle to the air passage 41, and the damper 45 opens the air passage 41 toward the heater core 43, so that the interior air or the outside air of the vehicle is heated by the hot water passing through the heater core 43 and becomes warm air. The warm air is supplied to the front cabin 12 to heat the cabin. In this case, since cold water is not supplied to the cooler 44, the interior air or the outside air of the vehicle is not cooled by the cooler 44.

[0203] The hot water having passed through the heater core 43 flows to the first line switching valve 91 through the second hot water supply line L122, and the first line switching valve 91 delivers the hot water to the hot water flow switching line L142. In this case, the first line switching valve 91 closes the second hot water supply line L122 toward the floor heat exchanger 80, so that the hot water is not supplied to the floor heat exchanger 80. Therefore, the vehicle cabin floor is not heated, and the hot water is returned to the heat pump system 20 through the hot water return line L132.

[0204] Furthermore, the first line additional valve 96 does not connect the first hot water supply line L112 to the third hot water supply line L151 , so that the hot water does not flow to the second heater core 63 .

[0205] In the following, reference will be made to Fig.24 A case is described in which a first air conditioning device and a second air conditioning device of a vehicle compartment cooling / heating system according to still another embodiment of the present invention are used to cool or heat a vehicle compartment.

[0206] Fig.24A schematic block diagram showing a situation in which a first air conditioning device and a second air conditioning device of a vehicle cabin cooling / heating system according to still another embodiment of the present invention are used to cool or heat a vehicle cabin.

[0207] like Fig.24 As shown, in order to cool or heat the cabin by using the first air conditioning device 40 and the second air conditioning device 60 of the cabin cooling / heating system for the vehicle, the heat pump heat exchanger 24 provides cold water or hot water by exchanging heat with the refrigerant, and the water pump module 30 delivers the cold water or hot water to the air conditioning device 40 through the first supply line module L110 by pumping the cold water or hot water through the first suction line module L100. The air conditioning device 40 provides cold air or warm air by exchanging heat between cold water and air or between hot water and air, and cools or heats the cabin by blowing the cold air or warm air into the front cabin 12. The cold water or hot water that has flowed through the air conditioning device 40 flows to the second supply line module L120.

[0208] Furthermore, the pipeline additional valve module 95 connects the first supply pipeline module L110 to the third supply pipeline module L150 so that a portion of the cold water or hot water provided in the water pump module 30 flows to the second air conditioning device 60. The second air conditioning device 60 provides cold air or warm air by exchanging heat between cold water and air or between hot water and air, and cools or heats the cabin by blowing the cold air or warm air into the rear cabin 14. The cold water or hot water that has flowed through the second air conditioning device 60 flows to the second supply pipeline module L120, flows to the flow switch pipeline module L140 together with the cold water or hot water that has flowed through the air conditioning device 40 through the pipeline switching valve module 90, and returns to the heat pump heat exchanger 24 through the return pipeline module L130.

[0209] In the following, reference will be made to Fig.25 and 26 A case where the first air conditioning device and the second air conditioning device of the vehicle cabin cooling / heating system according to another embodiment of the present invention are used to cool or heat the vehicle cabin is described in more detail.

[0210] Fig.25 is a configuration diagram showing a case where a first air conditioning device and a second air conditioning device of a vehicle compartment cooling / heating system according to still another embodiment of the present invention are used to cool a vehicle compartment, Fig.26 It is a configuration diagram showing a case in which a first air conditioning device and a second air conditioning device of a vehicle compartment cooling / heating system according to still another embodiment of the present invention are used to heat a vehicle compartment.

[0211] like Fig.25As shown, in order to cool the cabin by using the first air conditioning device 40 and the second air conditioning device 60 of the cabin cooling / heating system for the vehicle, the heat pump system 20 provides cold water by using the refrigerant circulating through the refrigerant circulation line L200. The second water pump 34 delivers the cold water to the cooler 44 by pumping the cold water. The blower 42 blows the interior air or the outside air of the vehicle to the air passage 41, and the interior air or the outside air of the vehicle is cooled by the cold water passing through the cooler 44 and becomes cold air. Therefore, the cold air is blown to the front cabin 12 through the air conditioning device 40 to cool the cabin. Hot water is not supplied to the heater core 43, and the damper 45 closes the air passage 41 toward the heater core 43, so that the interior air or the outside air of the vehicle is not heated by the heater core 43.

[0212] The cold water having passed through the cooler 44 flows to the second line switching valve 92 through the second cold water supply line L124, and the second line switching valve 92 delivers the cold water to the cold water flow switching line L144. In this case, the second line switching valve 92 closes the second cold water supply line L124 toward the floor heat exchanger 80, so that the cold water is not supplied to the floor heat exchanger 80. Therefore, the vehicle floor is not cooled, and the cold water is returned to the heat pump system 20 through the cold water return line L134.

[0213] In addition, the second line additional valve 97 provided in the first cold water supply line L114 connects the first cold water supply line L114 to the third cold water supply line L152 so that a part of the cold water in the first cold water supply line L114 flows to the second cooler 64. In this case, the second blower 62 blows the interior air or the outside air of the vehicle to the second air passage 61, and the interior air or the outside air of the vehicle is cooled by the cold water passing through the second cooler 64 and becomes cold air. Hot water is not supplied to the second heater core 63, and the second damper 65 closes the second air passage 61 so that the interior air or the outside air of the vehicle is not heated by the second heater core 63. Therefore, the cold air is blown to the rear compartment 14 through the second air conditioning device 60 to cool the compartment.

[0214] The cold water having passed through the second cooler 64 flows to the second line switching valve 92 through the second cold water supply line L124, and the second line switching valve 92 delivers the cold water having passed through the second cooler 64 to the cold water flow switching line L144 together with the cold water having passed through the cooler 44. In this case, the second line switching valve 92 closes the second cold water supply line L124 toward the floor heat exchanger 80, so that cold water is not supplied to the floor heat exchanger 80. Therefore, the vehicle cabin floor is not cooled, and the cold water is returned to the heat pump system 20 through the cold water return line L134.

[0215] like Fig.26As shown, in order to heat the cabin by using the first air conditioning device 40 and the second air conditioning device 60 of the cabin cooling / heating system for the vehicle, the heat pump system 20 provides hot water by using the refrigerant circulating through the refrigerant circulation line L200. The first water pump 32 delivers the hot water to the heater core 43 by pumping the hot water. The blower 42 blows the interior air or the outside air of the vehicle to the air passage 41, and the damper 45 opens the air passage 41 toward the heater core 43, so that the interior air or the outside air of the vehicle is heated by the hot water passing through the heater core 43 and becomes warm air. The warm air is supplied to the front cabin 12 to heat the cabin. In this case, since cold water is not supplied to the cooler 44, the interior air or the outside air of the vehicle is not cooled by the cooler 44.

[0216] The hot water having passed through the heater core 43 flows to the first line switching valve 91 through the second hot water supply line L122, and the first line switching valve 91 delivers the hot water to the hot water flow switching line L142. In this case, the first line switching valve 91 closes the second hot water supply line L122 toward the floor heat exchanger 80, so that the hot water is not supplied to the floor heat exchanger 80. Therefore, the vehicle cabin floor is not heated, and the hot water is returned to the heat pump system 20 through the hot water return line L132.

[0217] In addition, the first line additional valve 96 provided in the first hot water supply line L112 connects the first hot water supply line L112 to the third hot water supply line L151, so that a part of the hot water of the first hot water supply line L112 flows to the second heater core 63. In this case, the second blower 62 blows the interior air or the outside air of the vehicle to the second air passage 61, and the second damper 65 opens the second air passage 61 toward the second heater core 63, so that the interior air or the outside air of the vehicle is heated by the hot water passing through the second heater core 63 and becomes warm air. The warm air is supplied to the rear compartment 14 to heat the compartment. In this case, since cold water is not supplied to the second cooler 64, the interior air or the outside air of the vehicle is not cooled by the second cooler 64.

[0218] The hot water having passed through the second heater core 63 flows to the first line switching valve 91 through the second hot water supply line L122, and the first line switching valve 91 delivers the hot water having passed through the second heater core 63 to the hot water flow switching line L142 together with the hot water having passed through the heater core 43. In this case, the first line switching valve 91 closes the second hot water supply line L122 toward the floor heat exchanger 80, so that hot water is not supplied to the floor heat exchanger 80. Therefore, the vehicle cabin floor is not heated, and the hot water is returned to the heat pump system 20 through the hot water return line L132.

[0219] In the following, reference will be made to Fig. 27 A case is described in which the first and second air conditioning devices of a cabin cooling / heating system for a vehicle according to still another embodiment of the present invention are used to cool or heat the cabin, and the floor heat exchanger is used to cool or heat the cabin floor.

[0220] Fig. 27 A schematic block diagram showing a case where a first air conditioning device and a second air conditioning device of a cabin cooling / heating system for a vehicle according to yet another embodiment of the present invention are used to cool or heat a cabin and a floor heat exchanger is used to cool or heat a cabin floor.

[0221] like Fig. 27 As shown, in order to cool or heat the cabin by using the first air-conditioning device 40 and the second air-conditioning device 60 of the cabin cooling / heating system for the vehicle, and to cool or heat the cabin floor by using the floor heat exchanger 80, the heat pump heat exchanger 24 provides cold water or hot water by exchanging heat with the refrigerant, and the water pump module 30 delivers the cold water or hot water to the air-conditioning device 40 through the first supply line module L110 by pumping the cold water or hot water through the first suction line module L100. The air-conditioning device 40 provides cold air or warm air by exchanging heat between cold water and air or between hot water and air, and cools or heats the cabin by blowing the cold air or warm air into the front cabin 12. The cold water or hot water that has flowed through the air-conditioning device 40 flows to the second supply line module L120.

[0222] In addition, the pipeline additional valve module 95 connects the first supply pipeline module L110 to the third supply pipeline module L150 so that a part of the cold water or hot water in the water pump module 30 flows to the second air conditioning device 60. The second air conditioning device 60 provides cold air or warm air by performing heat exchange between cold water and air or between hot water and air, and cools or heats the cabin by blowing cold air or warm air into the rear cabin 14. The cold water or hot water that has passed through the second air conditioning device 60 flows to the second supply pipeline module L120, and flows to the floor heat exchanger 80 together with the cold water or hot water that has passed through the air conditioning device 40 through the pipeline switching valve module 90. The cold water or hot water that has flowed to the floor heat exchanger 80 cools or heats the cabin floor while circulating through the floor heat exchanger 80. The cold water or hot water that has circulated through the floor heat exchanger 80 returns to the heat pump heat exchanger 24 through the return pipeline module L130.

[0223] In the following, reference will be made to Fig.28 and 29 A case in which the air conditioning device and the second air conditioning device of the cabin cooling / heating system for a vehicle according to still another embodiment of the present invention are used to cool or heat the cabin, and the floor heat exchanger is used to cool or heat the cabin floor is described in more detail.

[0224] Fig.28 1 is a configuration diagram showing a case where a first air conditioning device and a second air conditioning device of a vehicle cabin cooling / heating system according to still another embodiment of the present invention are used to cool a cabin and a floor heat exchanger is used to cool a cabin floor, Fig.29 A configuration diagram showing a case in which a first air conditioning device and a second air conditioning device of a vehicle cabin cooling / heating system according to still another embodiment of the present invention are used to heat a cabin and a floor heat exchanger is used to heat a cabin floor.

[0225] like Fig.28 As shown, in order to cool the cabin by using the first air conditioning device 40 and the second air conditioning device 60 of the cabin cooling / heating system for the vehicle, and to cool the cabin floor by using the floor heat exchanger 80, the heat pump system 20 provides cold water by using the refrigerant circulating through the refrigerant circulation line L200. The second water pump 34 delivers the cold water to the cooler 44 by pumping the cold water. The blower 42 blows the interior air or the outside air of the vehicle to the air passage 41, and the interior air or the outside air of the vehicle is cooled by the cold water passing through the cooler 44 and becomes cold air. Therefore, the cold air is blown to the front compartment 12 through the air conditioning device 40 to cool the cabin. Hot water is not supplied to the heater core 43, and the damper 45 closes the air passage 41 toward the heater core 43, so that the interior air or the outside air of the vehicle is not heated by the heater core 43. The cold water that has flowed through the cooler 44 flows to the second pipeline switching valve 92 through the second cold water supply line L124.

[0226] In addition, the second line additional valve 97 provided in the first cold water supply line L114 connects the first cold water supply line L114 to the third cold water supply line L152, so that a part of the cold water in the first cold water supply line L114 flows to the second cooler 64. In this case, the second blower 62 blows the interior air or the outside air of the vehicle to the second air passage 61, and the interior air or the outside air of the vehicle is cooled by the cold water passing through the second cooler 64 and becomes cold air. Hot water is not supplied to the second heater core 63, and the second damper 65 closes the second air passage 61, so that the interior air or the outside air of the vehicle is not heated by the second heater core 63. Therefore, the cold air is blown to the rear compartment 14 through the second air conditioning device 60 to cool the compartment.

[0227] The cold water having passed through the second cooler 64 flows to the second line switching valve 92 through the second cold water supply line L124, and the second line switching valve 92 delivers the cold water having passed through the second cooler 64 to the floor heat exchanger 80 together with the cold water having passed through the cooler 44. The cold water cools the cabin floor while circulating through the floor heat exchanger 80, and is returned to the heat pump system 20 through the cold water return line L134.

[0228] like Fig.29 As shown, in order to heat the cabin by using the air conditioning device 40 of the cabin cooling / heating system for the vehicle and to heat the cabin floor by using the floor heat exchanger 80, the heat pump system 20 provides hot water by circulating the refrigerant passing through the refrigerant circulation line L200. The first water pump 32 delivers the hot water to the heater core 43 by pumping the hot water. The blower 42 blows the interior air or the outside air of the vehicle to the air passage 41, and the damper 45 opens the air passage 41 toward the heater core 43, so that the interior air or the outside air of the vehicle is heated by the hot water passing through the heater core 43 and becomes warm air. The warm air is supplied to the front compartment 12 to heat the compartment. In this case, since cold water is not supplied to the cooler 44, the interior air or the outside air of the vehicle is not cooled by the cooler 44. The hot water that has passed through the heater core 43 flows to the first line switching valve 91 through the second hot water supply line L122.

[0229] In addition, the first line additional valve 96 provided in the first hot water supply line L112 connects the first hot water supply line L112 to the third hot water supply line L151 so that a part of the hot water of the first hot water supply line L112 flows to the second heater core 63. In this case, the second blower 62 blows the interior air or the outside air of the vehicle to the second air passage 61, and the interior air or the outside air of the vehicle is heated by the hot water passing through the second heater core 63 to become warm air. The warm air is blown to the rear compartment 14 through the second air conditioning device 60 and heats the compartment. In this case, since cold water is not supplied to the second cooler 64, the interior air or the outside air of the vehicle is not cooled by the second cooler 64.

[0230] The hot water having passed through the second heater core 63 flows to the first line switching valve 91 through the second hot water supply line L122, and the first line switching valve 91 delivers the hot water having passed through the second heater core 63 to the floor heat exchanger 80 together with the hot water having passed through the heater core 43. The hot water heats the vehicle cabin floor while circulating through the floor heat exchanger 80, and is returned to the heat pump system 20 through the hot water return line L132.

[0231] Although the embodiments of the present invention have been described, the present invention is not limited to these embodiments. The present invention covers all modifications that can be easily made by a person skilled in the art based on the embodiments of the present invention and are considered equivalent to the present invention.

Claims

1. A cabin cooling / heating system for a vehicle, the vehicle comprising a front cabin, a rear cabin and a cabin floor of the rear cabin, The cabin cooling / heating system comprises: a heat pump system configured to provide cold or hot water by circulating a refrigerant; An air conditioning device is fluidly connected to the heat pump system and is configured to: receiving cold water or hot water from the heat pump system, providing cool air or warm air by exchanging heat between the interior air or the exterior air of the vehicle and cool water or hot water, and blowing cold air or warm air to the front compartment; a floor heat exchanger installed in the cabin floor and fluidly connected to the air conditioning unit, wherein the floor heat exchanger is configured to receive cold or hot water from the air conditioning unit and cool or heat the cabin floor by circulating the cold or hot water through the cabin floor; and a pipeline switching valve module, which is disposed between the air conditioning device and the floor heat exchanger and is configured to deliver the cold water or hot water that has passed through the air conditioning device to the floor heat exchanger, or to return the cold water or hot water to the heat pump system, The cold water or hot water that has circulated through the floor heat exchanger is returned to the heat pump system. 2 . The cabin cooling / heating system of claim 1 , further comprising a water pump module fluidly connected to the heat pump system and configured to pump cold water or hot water to the heat pump system.

3. The vehicle cabin cooling / heating system according to claim 1, wherein: The heat pump system comprises: a heat pump heat exchanger configured to provide cold or hot water by exchanging heat between water and a refrigerant; and a heat pump configured to provide hot water by supplying heat energy to water in a heat pump heat exchanger by circulating a refrigerant through a refrigerant circulation line, or to provide cold water by recovering heat energy from water in the heat pump heat exchanger, Wherein, the air conditioning device comprises: an air passage configured to allow interior air or exterior air of the vehicle to communicate with the front compartment, the air passage defining a passage through which the interior air or exterior air of the vehicle flows to the front compartment, a blower configured to blow the interior air or the exterior air of the vehicle into the air passage, a heater core disposed in the air passage and configured to receive hot water from the heat pump heat exchanger and heat interior air or exterior air of the vehicle in the air passage, and a cooler disposed in the air passage and configured to receive cold water from the heat pump heat exchanger and cool the interior air or the exterior air of the vehicle in the air passage, and Wherein, the pipeline switching valve module includes: a first line switching valve fluidly connected to the heater core and configured to receive hot water from the heater core and selectively deliver the hot water to the floor heat exchanger or the heat pump heat exchanger, and A second line switching valve is fluidly connected to the chiller and is configured to receive cold water from the chiller and selectively deliver the cold water to the floor heat exchanger or the heat pump heat exchanger.

4. The vehicle cabin cooling / heating system according to claim 3, wherein: The air conditioning device further includes a damper configured to selectively open or close the air passage through which interior air or exterior air of the vehicle flows to the heater core.

5. The vehicle cabin cooling / heating system according to claim 1, wherein: The air conditioning device is configured to cool or heat the front cabin in response to operation of the cabin cooling / heating system, and wherein whether the cabin floor is cooled or heated through the floor heat exchanger is controlled by the line switching valve module.

6. A vehicle compartment cooling / heating system for a vehicle, the vehicle comprising a front compartment, a rear compartment and a compartment floor, the compartment cooling / heating system comprising: a heat pump system configured to provide cold or hot water by circulating a refrigerant; An air conditioning device is fluidly connected to the heat pump system and is configured to: receiving cold water or hot water from the heat pump system, providing cool air or warm air by exchanging heat between the interior air or the exterior air of the vehicle and cool water or hot water, and blowing cold air or warm air to the front compartment; A second air conditioning device, fluidly connected to the air conditioning device and configured to: receiving cold water or hot water from the air conditioning device, providing cool air or warm air by exchanging heat between the interior air or the exterior air of the vehicle and cool water or hot water, and blowing cold air or warm air to the rear compartment; a floor heat exchanger installed in the cabin floor and fluidly connected to the second air conditioning unit, wherein the floor heat exchanger is configured to receive cold water or hot water from the second air conditioning unit and is configured to cool or heat the cabin floor by circulating the cold water or hot water through the cabin floor; and a pipeline switching valve module, which is disposed between the second air conditioning device and the floor heat exchanger and is configured to deliver the cold water or hot water that has passed through the second air conditioning device to the floor heat exchanger, or to return the cold water or hot water to the heat pump system, The cold water or hot water that has circulated through the floor heat exchanger is returned to the heat pump system. 7 . The cabin cooling / heating system of claim 6 , further comprising a water pump module fluidly connected to the heat pump system and configured to pump cold water or hot water to the heat pump system.

8. The vehicle cabin cooling / heating system according to claim 6, wherein: The heat pump system comprises: a heat pump heat exchanger configured to provide cold or hot water by exchanging heat between water and a refrigerant; and a heat pump configured to provide hot water by supplying heat energy to water in a heat pump heat exchanger by circulating a refrigerant through a refrigerant circulation line, or to provide cold water by recovering heat energy from water in the heat pump heat exchanger, Wherein, the air conditioning device comprises: an air passage configured to allow interior air or exterior air of the vehicle to communicate with the front compartment, the air passage defining a passage through which interior air or exterior air of the vehicle flows to the front compartment; a blower configured to blow interior air or exterior air of the vehicle into the air passage; a heater core disposed in the air passage and configured to receive hot water from the heat pump heat exchanger and heat interior air or exterior air of the vehicle in the air passage; and a cooler disposed in the air passage and configured to receive cold water from the heat pump heat exchanger and cool the interior air or the exterior air of the vehicle in the air passage, Wherein, the second air conditioning device comprises: a second air passage configured to allow interior air or exterior air of the vehicle to communicate with the rear compartment, the second air passage defining a passage through which interior air or exterior air of the vehicle flows to the rear compartment; a second blower configured to blow interior air or exterior air of the vehicle into the second air passage; a second heater core disposed in the second air passage and configured to receive hot water from the heater core and heat interior air or exterior air of the vehicle in the second air passage; and a second cooler disposed in the second air passage and configured to receive cold water from the cooler and cool the interior air or the exterior air of the vehicle in the second air passage, and Wherein, the pipeline switching valve module includes: a first line switching valve fluidly connected to the second heater core and configured to receive hot water from the second heater core and selectively deliver the hot water to the floor heat exchanger or the heat pump heat exchanger; and A second line switching valve is fluidly connected to the second cooler and is configured to receive cold water from the second cooler and selectively deliver the cold water to the floor heat exchanger or the heat pump heat exchanger.

9. The vehicle cabin cooling / heating system according to claim 8, wherein: The air conditioning device further includes a damper configured to selectively open or close the air passage through which the interior air or the exterior air of the vehicle flows to the heater core, and The second air conditioning device further includes a second damper configured to selectively open or close the second air passage through which the interior air or the exterior air of the vehicle flows to the second heater core.

10. The vehicle cabin cooling / heating system according to claim 8, wherein: The second air conditioning device is in communication with the air conditioning device, and When the second blower is running, the rear compartment is cooled or heated.

11. The vehicle cabin cooling / heating system according to claim 6, wherein: The air conditioning device cools or heats the front cabin in response to operation of a cabin cooling / heating system for the vehicle, and The pipeline switching valve module controls whether to cool or heat the vehicle floor through the floor heat exchanger.

12. A cabin cooling / heating system for a vehicle, the vehicle comprising a front cabin, a rear cabin and a cabin floor of the rear cabin, The cabin cooling / heating system comprises: a heat pump system configured to provide cold or hot water by circulating a refrigerant; An air conditioning device is fluidly connected to the heat pump system and is configured to: receiving cold water or hot water from the heat pump system, providing cool air or warm air by exchanging heat between the interior air or the exterior air of the vehicle and cool water or hot water, and blowing cold air or warm air to the front compartment; A second air conditioning device is fluidly connected to the heat pump system and is configured to: receiving cold water or hot water from the heat pump system, providing cool air or warm air by heat exchange between interior air or exterior air of the vehicle and cool water or hot water, and blowing cold air or warm air to the rear compartment; a floor heat exchanger installed in the cabin floor and fluidly connected to the second air conditioning unit, wherein the floor heat exchanger is configured to receive cold water or hot water from the second air conditioning unit and is configured to cool or heat the cabin floor by circulating the cold water or hot water through the cabin floor; and a pipeline switching valve module, which is disposed between the second air conditioning device and the floor heat exchanger and is configured to deliver the cold water or hot water that has passed through the second air conditioning device to the floor heat exchanger, or is configured to return the cold water or hot water to the heat pump system, The cold water or hot water that has circulated through the floor heat exchanger is returned to the heat pump system. 13 . The cabin cooling / heating system of claim 12 , further comprising a line addition valve module configured to selectively connect the heat pump system to the second air conditioning device. 14 . The cabin cooling / heating system of claim 12 , further comprising a water pump module fluidly connected to the heat pump system and configured to pump cold water or hot water of the heat pump system.

15. The vehicle cabin cooling / heating system according to claim 13, wherein: The heat pump system comprises: a heat pump heat exchanger configured to provide cold or hot water by exchanging heat between water and a refrigerant; and a heat pump configured to provide hot water by supplying heat energy to water in a heat exchanger of the heat pump by circulating a refrigerant through a refrigerant circulation line, or to provide cold water by recovering heat energy from water in the heat exchanger of the heat pump, Wherein, the air conditioning device comprises: an air passage configured to allow interior air or exterior air of the vehicle to communicate with the front compartment, the air passage defining a passage through which interior air or exterior air of the vehicle flows to the front compartment; a blower configured to blow interior air or exterior air of the vehicle into the air passage; a heater core disposed in the air passage and configured to receive hot water from the heat pump heat exchanger and heat interior air or exterior air of the vehicle in the air passage; and a cooler disposed in the air passage and configured to receive cold water from the heat pump heat exchanger and cool the interior air or the exterior air of the vehicle in the air passage, Wherein, the second air conditioning device comprises: a second air passage configured to allow interior air or exterior air of the vehicle to communicate with the rear compartment, the second air passage defining a passage through which interior air or exterior air of the vehicle flows to the rear compartment; a second blower configured to blow interior air or exterior air of the vehicle into the second air passage; a second heater core disposed in the second air passage and configured to heat interior air or exterior air of the vehicle in the second air passage; and a second cooler disposed in the second air passage and configured to cool interior air or exterior air of the vehicle in the second air passage, wherein the line additional valve module comprises: a first line additional valve configured to selectively connect the heater core to the second heater core to selectively supply hot water in the heater core to the second heater core; and a second line additional valve configured to selectively connect the cooler to the second cooler to selectively supply cold water in the cooler to the second cooler, and Wherein, the pipeline switching valve module includes: a first line switching valve fluidly connected to the second heater core and configured to receive hot water from the second heater core and selectively deliver the hot water to the floor heat exchanger or the heat pump heat exchanger; and A second line switching valve is fluidly connected to the second cooler and is configured to receive cold water from the second cooler and selectively deliver the cold water to the floor heat exchanger or the heat pump heat exchanger.

16. The vehicle cabin cooling / heating system according to claim 15, wherein: The air conditioning device further includes a damper configured to selectively open or close the air passage through which the interior air or the exterior air of the vehicle flows to the heater core, and The second air conditioning device further includes a second damper configured to selectively open or close the second air passage through which the interior air or the exterior air of the vehicle flows to the second heater core.

17. The vehicle cabin cooling / heating system according to claim 13, wherein: the air conditioning device cools or heats the front compartment in response to operation of the compartment cooling / heating system, The pipeline additional valve module controls whether the rear compartment is cooled or heated by the second air conditioning device, and The pipeline switching valve module controls whether to cool or heat the vehicle floor through the floor heat exchanger.

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