Air conditioning system and vehicle with same

Abstract

The invention provides an air conditioning system and a vehicle with the air conditioning system. The air conditioning system comprises a refrigerant circulating system and a water circulating system. The refrigerant circulation system comprises a first refrigerant heat exchanger and a refrigerant loop, and the first refrigerant heat exchanger is arranged on the refrigerant loop; the first water heat exchanger is arranged on the first branch, and the second water heat exchanger is arranged on the second branch; the first valve at least has a first state and a second state, the first valve is arranged in a switchable mode between the first state and the second state, and when the first valve is in the first state, the first water heat exchanger and the second water heat exchanger are arranged in parallel; and when the first valve is in the second state, the first water heat exchanger and the second water heat exchanger are connected in series. According to the running and parking integrated air conditioner, the first valve controls the water flow path by switching different states, parallel or series water flow configuration of the two water heat exchangers is achieved, and a running air conditioner and a parking air conditioner are integrated into the high-safety running and parking integrated air conditioner.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicles, and in particular relates to an air-conditioning system and a vehicle having the air-conditioning system. Background Art

[0002] At present, trucks are equipped with a set of driving air conditioners when they leave the factory for the driver to use when driving. When cooling, the compressor is driven by a pulley, and when heating, the engine waste heat is used for heating. That is, the engine is required to provide power for both cooling and heating. Since trucks usually transport long distances, trucks not only have long driving times, but when the truck driver needs to rest, the truck is parked and the driver rests in the car, and the car also needs to be cooled or heated. When the truck is parked and needs cooling, the driving air conditioner still needs to be run, that is, the engine needs to be kept on, which has problems such as high fuel consumption, poor comfort caused by high noise, and carbon monoxide poisoning caused by incomplete combustion of fuel. The conventional method is that truck drivers will choose to install a set of parking air conditioners for parking cooling and a diesel heater for parking heating. In order to achieve dual-use, the original car air conditioner must be used for cooling and heating when driving. When parking, the parking air conditioner plus a diesel heater is needed. The above two air conditioning systems are used to achieve dual-use, resulting in a series of problems such as the cost, space and weight of the overall air conditioning design. Summary of the invention

[0003] The present invention provides an air-conditioning system and a vehicle having the same, which can solve the technical problem that the original vehicle air-conditioning is used for cooling and heating during driving, and a parking air-conditioning and a diesel heater are needed when parking, and the above two air-conditioning systems are used to achieve dual-use when driving and parking, which leads to a series of problems in the cost, space and weight of the overall air-conditioning design.

[0004] The present invention provides an air conditioning system, which includes a refrigerant circulation system and a water circulation system;

[0005] The refrigerant circulation system comprises a first refrigerant heat exchanger and a refrigerant circuit, wherein the first refrigerant heat exchanger is arranged on the refrigerant circuit;

[0006] The water circulation system comprises a first water heat exchanger, a second water heat exchanger, a first valve and a water circuit, the medium in the water circuit flows through the first refrigerant heat exchanger, the water circuit is provided with a first branch and a second branch, the first water heat exchanger is provided on the first branch, and the second water heat exchanger is provided on the second branch;

[0007] The outlet pipe and return pipe of the water circuit can be selectively connected to the valve port of the first valve component, and the water inlet and outlet of the first branch and the second branch can be selectively connected to the valve port of the first valve component respectively. The first valve component has at least a first state and a second state, and the first valve component can be switchably set between the first state and the second state. When the first valve component is in the first state, the water inlets of the first branch and the second branch are respectively connected to the outlet pipe of the water circuit, and the first water heat exchanger and the second water heat exchanger are arranged in parallel; when the first valve component is in the second state, the water inlet of the first branch is connected to the outlet pipe of the water circuit, and the first water heat exchanger and the second water heat exchanger are arranged in series.

[0008] In some embodiments, when the first valve member is in the first state, the first valve port of the first valve member is connected to the second valve port of the first valve member, the third valve port of the first valve member is connected to the fourth valve port of the first valve member, the water inlet of the first branch is connected to the water outlet pipe of the water circuit, the water outlet of the first branch is connected to the third valve port of the first valve member, and the return pipe of the water circuit is connected to the fourth valve port of the first valve member; the water outlet pipe of the water circuit is connected to the first valve port of the first valve member, the water inlet of the second branch is connected to the second valve port of the first valve member, the water outlet of the second branch is connected to the return pipe of the water circuit, and the first water heat exchanger and the second water heat exchanger are arranged in parallel;

[0009] When the first valve component is in the second state, the third valve port of the first valve component and the second valve port of the first valve component are connected, the water outlet pipe of the water circuit is connected to the water inlet of the first branch, the water outlet of the first branch is connected to the third valve port of the first valve component, the water inlet of the second branch is connected to the second valve port of the first valve component, the water outlet of the first branch is connected to the return pipe of the water circuit, and the first water heat exchanger and the second water heat exchanger are arranged in parallel.

[0010] In some embodiments, the first valve member further includes a third state and a fourth state, and the first valve member is switchably set between the first state, the second state, the third state and the fourth state. When the first valve member is in the third state, the water inlet and the water outlet of the first branch are respectively connected to the water outlet pipe and the water return pipe of the water circuit, and the water inlet and the water outlet of the second branch are respectively disconnected from the water outlet pipe and the water return pipe of the water circuit;

[0011] When the first valve member is in the fourth state, the water inlet and outlet of the second branch are respectively connected to the outlet pipe and return pipe of the water circuit, and the water inlet and outlet of the first branch are respectively disconnected from the outlet pipe and return pipe of the water circuit.

[0012] In some embodiments, when the first valve member is in the third state, the third valve port of the first valve member is connected to the fourth valve port of the first valve member, the water inlet of the first branch is connected to the water outlet pipe of the water circuit, the water outlet of the first branch is connected to the third valve port of the first valve member, and the water return pipe of the water circuit is connected to the fourth valve port of the first valve member;

[0013] When the first valve component is in the fourth state, the first valve port of the first valve component is connected to the second valve port of the first valve component, the water outlet pipe of the water circuit is connected to the first valve port of the first valve component, the water inlet of the second branch is connected to the second valve port of the first valve component, and the water outlet of the second branch is connected to the return pipe of the water circuit.

[0014] In some embodiments, the water circulation system also includes an engine heat exchanger, and the water circuit is provided with a first heat exchange pipe segment and a second heat exchange pipe segment, the water inlets of the first heat exchange pipe segment and the second heat exchange pipe segment are respectively connected to the return pipe of the water circuit, and the return ports of the first heat exchange pipe segment and the second heat exchange pipe segment can be selectively connected to the outlet pipe of the water circuit, the medium in the first heat exchange pipe segment flows through the first refrigerant heat exchanger, and the engine heat exchanger is arranged on the second heat exchange pipe segment, and the first refrigerant heat exchanger is arranged in parallel with the engine heat exchanger.

[0015] In some embodiments, the water circulation system further includes a second valve member, the second valve member has at least a fifth state and a sixth state, and the second valve member is switchably arranged between the fifth state and the sixth state, and the water outlet and the water return pipe of the first heat exchange pipe segment and the second heat exchange pipe segment are respectively selectively connected to the second valve member, so that the water return ports of the first heat exchange pipe segment and the second heat exchange pipe segment are selectively connected to the water outlet pipe of the water circuit;

[0016] When the first valve component is in the second state and the second valve component is in the fifth state, the first refrigerant heat exchanger, the first water heat exchanger and the second water heat exchanger are arranged in series in sequence; when the first valve component is in the second state and the second valve component is in the sixth state, the engine heat exchanger, the first water heat exchanger and the second water heat exchanger are arranged in series in sequence.

[0017] In some embodiments, when the two valve components are in the fifth state, the second valve port and the first valve port of the second valve component are connected, and the water outlet of the first heat exchange pipe section and the water outlet pipe of the water circuit are respectively connected to the second valve port and the first valve port of the second valve component; when the two valve components are in the sixth state, the third valve port and the fourth valve port of the second valve component are connected, and the water outlet of the second heat exchange pipe section and the water outlet pipe of the water circuit are respectively connected to the third valve port and the fourth valve port of the second valve component.

[0018] In some embodiments, the first valve component and the second valve component each include a housing, a valve core and a motor, wherein the output shaft of the motor is connected to the valve core, and the valve core is rotatably disposed in the housing; a plurality of valve ports are disposed on the housing, and a plurality of conducting structures are disposed on the valve core, wherein the conducting structure is used to connect two of the valve ports, and the valve core has a plurality of rotational positions so that the plurality of valve ports are respectively connected to different conducting structures.

[0019] In some embodiments, the valve core has at least four rotation positions, when the valve core is located at a first rotation position, the first valve component is in the first state; when the valve core is located at a second rotation position, the first valve component is in the second state; when the valve core is located at a third rotation position, the first valve component is in the third state, or the second valve component is in the sixth state; when the valve core is located at a fourth rotation position, the first valve component is in the fourth state, or the second valve component is in the fifth state.

[0020] In some embodiments, the conduction structure is a groove structure, and a first conduction structure, a second conduction structure, and a third conduction structure are sequentially arranged on the outer peripheral wall of the valve core, the first conduction structure and the second conduction structure are arranged vertically, and the third conduction structure is arranged horizontally; the housing is provided with a first interface, a second interface, a third interface, and a fourth interface;

[0021] When the valve core is located at the first rotation position, the two ends of the first conducting structure are respectively arranged corresponding to the first interface and the second interface, and the two ends of the second conducting structure are respectively arranged corresponding to the third interface and the fourth interface; when the valve core is located at the second rotation position, the two ends of the third conducting structure are respectively arranged corresponding to the second interface and the third interface; when the valve core is located at the third rotation position, the two ends of the first conducting structure are respectively arranged corresponding to the third interface and the fourth interface; when the valve core is located at the fourth rotation position, the two ends of the second conducting structure are respectively arranged corresponding to the first interface and the second interface.

[0022] In some embodiments, the refrigerant circulation system is arranged outside the heat exchange environment, and the refrigerant circulation system also includes a compressor, a throttle valve, a second refrigerant heat exchanger and a four-way valve. The first refrigerant heat exchanger, the throttle valve and the second refrigerant heat exchanger are arranged in series in sequence, the intake pipe of the compressor is connected to the first interface of the four-way valve, the outlet pipe of the compressor is connected to the second interface of the four-way valve, the intake pipe of the first refrigerant heat exchanger is connected to the third interface of the four-way valve, and the outlet pipe of the second refrigerant heat exchanger is connected to the fourth interface of the four-way valve.

[0023] In some embodiments, the water circulation system also includes an air outlet component, which includes an air conditioning box and fan blades. The fan blades, the first water heat exchanger and the second water heat exchanger are arranged in the air conditioning box, and the second water heat exchanger is close to the air outlet of the air conditioning box.

[0024] A vehicle includes an integrated air-conditioning system for both traveling and stationary use, wherein the air-conditioning system is the above-mentioned air-conditioning system.

[0025] The present invention provides an air conditioning system and a vehicle having the air conditioning system, which have the following beneficial effects:

[0026] According to the driving state of the truck, the first valve member of the present invention controls the water flow path by switching different states to realize parallel or series water flow configuration. Regardless of whether the water circulation system is in cooling mode or heating mode, a complete air conditioning system is used, and the refrigerant circulation system plays the role of providing cold source and heat source, so that the driving air conditioner and the parking air conditioner can be integrated into a set of high-safety driving and parking integrated air conditioners. The air conditioning system in the present invention can significantly reduce energy consumption and improve energy efficiency while ensuring comfort, and has good energy-saving effects and environmental adaptability. This system reduces energy loss and improves energy utilization efficiency through more efficient heat exchange and circulation design, and the integrated design avoids the cost and weight of additional installation of parking air conditioners and diesel heaters, making the truck more economical and lightweight. In addition, the present invention can adjust the flow direction of the medium in the water circulation system according to the operating mode of the truck (driving or parking) and the working mode of the air conditioner (cooling or heating) by switching the state of the first valve member to adapt to different heat exchange requirements, allowing the air-conditioning system to be flexibly adjusted under different working conditions to achieve optimal heat exchange efficiency and energy consumption ratio, thereby improving the efficiency and adaptability of the entire air-conditioning system. Through effective heat exchange and water flow control, the system can quickly respond to the driver's demand for the temperature in the car and provide a comfortable driving environment, while avoiding problems such as high fuel consumption, high noise and carbon monoxide poisoning caused by long-term operation of the engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0028] Figure 1 is a schematic diagram of an air conditioning system according to an embodiment of the present invention;

[0029] Figure 2 is a schematic diagram of a first valve member in an embodiment of the present invention when it is in a first state;

[0030] Figure 3 is a schematic diagram of a first valve member in an embodiment of the present invention when it is in a second state;

[0031] Figure 4 is a schematic diagram of a first valve member in an embodiment of the present invention when it is in a third state;

[0032] Figure 5 is a schematic diagram of a first valve member in an embodiment of the present invention when it is in a fourth state;

[0033] Figure 6 is a schematic diagram of a water circuit when the first valve member according to an embodiment of the present invention is in a first state;

[0034] Figure 7 is a schematic diagram of a water circuit when the first valve member according to an embodiment of the present invention is in the second state;

[0035] Figure 8 is a schematic diagram of a water circuit when the first valve member according to an embodiment of the present invention is in the third state;

[0036] Fig. 9 is a schematic diagram of a water circuit when the first valve member according to an embodiment of the present invention is in a fourth state;

[0037] Fig.10 is a schematic diagram of a second valve member in an embodiment of the present invention when it is in a fifth state;

[0038] Fig.11 is a schematic diagram of a second valve member in an embodiment of the present invention when it is in a sixth state;

[0039] Fig.12 is a schematic diagram of a valve body according to an embodiment of the present invention;

[0040] Fig.13 A schematic diagram of an exploded view of a valve body according to an embodiment of the present invention;

[0041] Fig.14 is a schematic diagram of a housing and a base according to an embodiment of the present invention;

[0042] Fig.15 Schematic diagram of a housing and a valve core according to an embodiment of the present invention;

[0043] Fig.16 It is a schematic diagram of a valve core in a first position according to an embodiment of the present invention;

[0044] Fig.17 It is a schematic diagram of a valve core in an embodiment of the present invention when it is located in a second position;

[0045] Fig.18 It is a schematic diagram of a valve core in an embodiment of the present invention when it is located at a third position;

[0046] Fig.19 It is a schematic diagram of a valve core in a fourth position according to an embodiment of the present invention;

[0047] Fig. 20 is a schematic diagram of an air outlet component according to an embodiment of the present invention;

[0048] Figures: 1-refrigerant circulation system; 101-first refrigerant heat exchanger; 102-refrigerant circuit; 103-compressor; 104-throttle valve; 105-second refrigerant heat exchanger; 106-four-way valve; 2-water circulation system; 3-first water heat exchanger; 4-second water heat exchanger; 5-first valve member; 51-first valve port of first valve member; 52-third valve port of first valve member; 53-third valve port of first valve member; 54-fourth valve port of first valve member; 6-water circuit; 601-water outlet pipe; 602-water return pipe; 61-first branch; 62-second branch; 63-first heat exchange pipe section; 64-second heat exchange pipe section; 7 -engine heat exchanger; 8-second valve component; 81-first valve port of second valve component; 82-second valve port of second valve component 83-third valve port of second valve component; 84-fourth valve port of second valve component; 901-housing; 902 valve core; 903-motor; 904-base; 905-first sealing member; 906-second sealing member; 907-fixing plate; 941-first conduction structure; 942-second conduction structure; 943-third conduction structure; 951-first interface; 952-second interface; 953-third interface; 954-fourth interface; 10-air outlet assembly; 111-air conditioning box; 112-fan blades. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0051] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0052] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0053] See also Figures 1 to 3As shown, according to an embodiment of the present invention, an air conditioning system is provided, which includes a refrigerant circulation system 1 and a water circulation system 2; the refrigerant circulation system 1 includes a first refrigerant heat exchanger 101 and a refrigerant circuit 102, and the first refrigerant heat exchanger 101 is arranged on the refrigerant circuit 102; the water circulation system 2 includes a first water heat exchanger 3, a second water heat exchanger 4, a first valve member 5 and a water circuit 6, the medium in the water circuit 6 flows through the first refrigerant heat exchanger 101, the outlet pipe 601 and the return pipe 602 of the water circuit 6 can be selectively connected to the valve port of the first valve member 5, and the first branch 61 and the second branch 62 are connected to each other. The water inlet and the water outlet can be selectively connected to the valve port of the first valve component 5 respectively. The first valve component 5 has at least a first state and a second state, and the first valve component 5 can be switchably set between the first state and the second state. When the first valve component 5 is in the first state, the water inlets of the first branch 61 and the second branch 62 are respectively connected to the water outlet pipe 601 of the water circuit 6, and the first water heat exchanger 3 and the second water heat exchanger 4 are arranged in parallel; when the first valve component 5 is in the second state, the water inlet of the first branch 61 is connected to the water outlet pipe 601 of the water circuit 6, and the first water heat exchanger 3 and the second water heat exchanger 4 are arranged in series.

[0054] Specifically, refrigerant circulates in the refrigerant circulation system 1. By switching the flow direction of the refrigerant, the first refrigerant heat exchanger 101 can provide both a cold source and a heat source. Since the medium in the water circuit 6 can flow through the first refrigerant heat exchanger 101, the medium in the water circuit 6 exchanges heat with the first refrigerant heat exchanger 101 during the flow, so that the temperature of the medium in the water circuit 6 decreases or increases. After the medium in the water circuit 6 exchanges heat with the first refrigerant heat exchanger 101, it flows into the first branch 61 and the second branch 62 respectively, or first flows into the first branch 61 and then flows into the second branch 62. In this embodiment, the flow direction of the medium in the first branch 61 and the second branch 62 is achieved by switching the first valve member 5, which is specifically switched according to the operation mode of the truck.

[0055] Specifically, when the truck is in the parking state and the air-conditioning system needs to be used, the first valve member 5 is switched to the first state, and at this time, medium flows into the first branch 61 and the second branch 62. When the water circulation system 2 needs to run the cooling mode, the first refrigerant heat exchanger 101 flows with low-temperature refrigerant. After the medium in the water circuit 6 flows through the first refrigerant heat exchanger 101, the temperature of the medium decreases and flows out from the water outlet pipe 601 of the water circuit 6, and flows into the first branch 61 and the second branch 62 respectively; when the water circulation system 2 needs to run the heating mode, the first refrigerant heat exchanger 101 flows with high-temperature refrigerant. After the medium in the water circuit 6 flows through the first refrigerant heat exchanger 101, the temperature of the medium decreases and flows out from the water outlet pipe 601 of the water circuit 6, and flows into the first branch 61 and the second branch 62 respectively. , the temperature of the medium rises and flows out from the outlet pipe 601 of the water circuit 6, and flows into the first branch 61 and the second branch 62 respectively. Regardless of the cooling mode or the heating mode, the first valve member 5 is in the first state, and the first water heat exchanger 3 and the second water heat exchanger 4 are both arranged in parallel, that is, the two heat exchangers are used to exchange water and heat at the same time to enhance the heat exchange effect. When the water in the system passes through the water heat exchanger from the water pipe, the pressure will increase due to the narrowing of the pipe. If the two heat exchangers are connected in parallel, the system pressure will be relatively small, and the power to drive the water pump will be reduced, thereby saving electricity, reducing power consumption, saving battery power, and increasing the endurance time of the air conditioner when the vehicle is parked, making the water circulation system 2 more energy-efficient.

[0056] Specifically, when the truck is in driving state and the air-conditioning system needs to be used, the first valve member 5 is switched to the second state. At this time, the medium in the water circuit 6 first flows into the first branch 61 and then flows into the second branch 62. When the water circulation system 2 needs to run the cooling mode, the first refrigerant heat exchanger 101 flows with low-temperature refrigerant. After the medium in the water circuit 6 flows through the first refrigerant heat exchanger 101, the temperature of the medium decreases and flows out from the outlet pipe 601 of the water circuit 6, first flows into the first branch 61, flows through the first water heat exchanger 3, and then flows into the second branch 62. After flowing through the second water heat exchanger 4, it flows into the return pipe 602 of the water circuit 6 and continues to circulate. Similarly, when the water circulation system 2 needs to run the heating mode, the first High-temperature refrigerant flows in the refrigerant heat exchanger 101. After the medium in the water circuit 6 flows through the first refrigerant heat exchanger 101, the temperature of the medium increases and flows out from the outlet pipe 601 of the water circuit 6, first flows into the first branch 61, flows through the first water heat exchanger 3, and then flows into the second branch 62. After flowing through the second water heat exchanger 4, it flows into the return pipe 602 of the water circuit 6 and continues to circulate. Regardless of the cooling mode or the heating mode, the first valve member 5 is in the second state, and the first water heat exchanger 3 and the second water heat exchanger 4 are both arranged in series, so that the flow path of water in the heat exchanger is lengthened, thereby increasing the heat exchange area and realizing the improvement of heat exchange capacity. Compared with the two heat exchangers in parallel, the heat exchange effect is better, and the heat exchange mode is the super strong mode.

[0057] In this embodiment, according to the driving state of the truck, the first valve member 5 controls the water flow path by switching different states to realize parallel or series water flow configuration. Regardless of whether the water circulation system 2 is in cooling mode or heating mode, a complete set of air conditioning systems is used for parking and driving. The refrigerant circulation system 1 plays the role of providing cold source and heat source, so that the driving air conditioner and the parking air conditioner can be integrated into a set of high-safety driving and parking integrated air conditioners. The air conditioning system in this embodiment can significantly reduce energy consumption and improve energy efficiency while ensuring comfort, and has good energy-saving effects and environmental adaptability. This system reduces energy loss and improves energy utilization efficiency through more efficient heat exchange and circulation design, and the integrated design avoids the cost and weight of additional installation of parking air conditioners and diesel heaters, making the truck more economical and lightweight. In addition, this embodiment can adjust the medium flow direction in the water circulation system 2 according to the operating mode of the truck (driving or parking) and the working mode of the air conditioner (cooling or heating) by switching the state of the first valve member 5 to adapt to different heat exchange requirements, allowing the air-conditioning system to be flexibly adjusted under different working conditions to achieve optimal heat exchange efficiency and energy consumption ratio, thereby improving the efficiency and adaptability of the entire air-conditioning system. Through effective heat exchange and water flow control, the system can quickly respond to the driver's demand for the temperature in the car and provide a comfortable driving environment, while avoiding problems such as high fuel consumption, high noise and carbon monoxide poisoning caused by long-term operation of the engine.

[0058] It is worth noting that the medium in this embodiment is water, and in other embodiments, the medium may also be other liquids that can flow. The refrigerant circulation system 1 in this embodiment is a conventional air-conditioning system, that is, the refrigerant circulation system 1 can at least realize two modes of cooling and heating. The refrigerant circulation system 1 in this embodiment can not only provide a cold source when driving through the first refrigerant heat exchanger 101, but also provide a heat source when the water circulation system 2 needs to heat. In other embodiments, since the engine needs to work when the truck is driving, the engine heat can also be used to provide a heat source, so that there is no need to run the refrigerant circulation system 1 when driving. In this embodiment, the engine heat is preferably used when driving.

[0059] See also Figures 1 to 3As shown, when the first valve member 5 is in the first state, the first valve port 51 of the first valve member 5 is connected to the second valve port 52 of the first valve member 5, the third valve port 53 of the first valve member 5 is connected to the fourth valve port 54 of the first valve member 5, the water inlet of the first branch 61 is connected to the water outlet pipe 601 of the water circuit 6, the water outlet of the first branch 61 is connected to the third valve port 53 of the first valve member 5, and the water return pipe 602 of the water circuit 6 is connected to the fourth valve port 54 of the first valve member 5; the water outlet pipe 601 of the water circuit 6 is connected to the first valve port 51 of the first valve member 5, the water inlet of the second branch 62 is connected to the second valve port 52 of the first valve member 5, and the water return pipe 602 of the water circuit 6 is connected to the fourth valve port 54 of the first valve member 5. The water outlet of the branch 62 is connected to the return pipe 602 of the water circuit 6, and the first water heat exchanger 3 and the second water heat exchanger 4 are arranged in parallel; when the first valve component 5 is in the second state, the third valve port 53 of the first valve component 5 and the second valve port 52 of the first valve component 5 are connected, the water outlet pipe 601 of the water circuit 6 is connected to the water inlet of the first branch 61, the water outlet of the first branch 61 is connected to the third valve port 53 of the first valve component 5, the water inlet of the second branch 62 is connected to the second valve port 52 of the first valve component 5, the water outlet of the first branch 61 is connected to the return pipe 602 of the water circuit 6, and the first water heat exchanger 3 and the second water heat exchanger 4 are arranged in parallel.

[0060] Specifically, when the truck is in the parking state and the air conditioning system needs to be used, the first valve component 5 is switched to the first state, the first valve port 51 of the first valve component 5 is connected to the second valve port 52 of the first valve component 5, the third valve port 53 of the first valve component 5 is connected to the fourth valve port 54 of the first valve component 5, the water inlet of the first branch 61 is connected to the water outlet pipe 601 of the water circuit 6, the water outlet of the first branch 61 is connected to the third valve port 53 of the first valve component 5, and the return pipe 602 of the water circuit 6 is connected to the first valve component 6. 5 is connected to the fourth valve port 54 of the first valve member 5; the outlet pipe 601 of the water circuit 6 is connected to the first valve port 51 of the first valve member 5, the water inlet of the second branch 62 is connected to the second valve port 52 of the first valve member 5, and the water outlet of the second branch 62 is connected to the return pipe 602 of the water circuit 6. At this time, the medium will flow into the first branch 61 and the second branch 62. Regardless of the cooling mode or the heating mode, the first valve member 5 is in the first state, and the first water heat exchanger 3 and the second water heat exchanger 4 are both arranged in parallel.

[0061] Specifically, when the truck is in driving state and the air-conditioning system needs to be used, the first valve component 5 switches to the second state, the third valve port 53 of the first valve component 5 is connected to the second valve port 52 of the first valve component 5, the outlet pipe 601 of the water circuit 6 is connected to the water inlet of the first branch 61, the outlet of the first branch 61 is connected to the third valve port 53 of the first valve component 5, the water inlet of the second branch 62 is connected to the second valve port 52 of the first valve component 5, and the outlet of the first branch 61 is connected to the return pipe 602 of the water circuit 6. At this time, the medium in the water circuit 6 first flows into the first branch 61 and then flows into the second branch 62. Similarly, regardless of whether it is the cooling mode or the heating mode, the first valve component 5 is in the second state, and the first water heat exchanger 3 and the second water heat exchanger 4 are both arranged in series.

[0062] In this embodiment, since the outlet pipe 601 and the return pipe 602 of the water circuit 6 can be selectively connected to the valve port of the first valve member 5, the water inlet and the water outlet of the first branch 61 and the second branch 62 can be selectively connected to the valve port of the first valve member 5, whether it is the water circuit 6 or the first branch 61 and the second branch 62, the connection relationship between the pipelines can be achieved by setting a first valve member 5. The single first valve member 5 controls different pipeline connections. The single valve member control can reduce the variables in the system, making the system more stable and reliable, simplifying the design of the system, reducing the number of valves required in the system, thereby reducing the complexity of the system and potential failure points, and the simplified pipeline and valve member design can reduce the energy loss in the system and improve the heat exchange efficiency. In addition, the single valve member control can speed up the system response speed, because the flow path changes in the system are more direct and rapid, which helps to quickly adapt to different working conditions.

[0063] It is worth noting that since the present embodiment is based on the provision of two water heat exchangers, whether the two are to be arranged in parallel or in series is considered. If the conventional method is adopted to achieve the parallel arrangement or the series arrangement, many valves must be set on each pipeline to achieve it. The present embodiment can be achieved by setting the first valve component 5, which is achieved by fully considering the heat exchange requirements and the flow direction of the medium.

[0064] See also Figures 1 to 5As shown, the first valve component 5 also includes a third state and a fourth state. The first valve component 5 is switchably set between the first state, the second state, the third state and the fourth state. When the first valve component 5 is in the third state, the water inlet and the water outlet of the first branch 61 are respectively connected to the water outlet pipe 601 and the return pipe 602 of the water circuit 6, and the water inlet and the water outlet of the second branch 62 are respectively disconnected from the water outlet pipe 601 and the return pipe 602 of the water circuit 6; when the first valve component 5 is in the fourth state, the water inlet and the water outlet of the second branch 62 are respectively connected to the water outlet pipe 601 and the return pipe 602 of the water circuit 6, and the water inlet and the water outlet of the first branch 61 are respectively disconnected from the water outlet pipe 601 and the return pipe 602 of the water circuit 6.

[0065] Specifically, the first valve component 5 of the present embodiment has not only a first state and a second state. When the temperature changes repeatedly during the season change, and it is necessary to use cooling and heating switching, if the same heat exchanger is used for cooling switching and heating, the condensation water generated on the surface of the heat exchanger during cooling is switched to heating and evaporates and blows into the cockpit, causing the windshield to fog, thereby affecting the driver's vision and causing traffic safety accidents. The first valve component 5 of the present embodiment also includes a third state and a fourth state. When the truck is in a driving state and the air-conditioning system is needed for cooling, the first valve component 5 is switched to the third state. At this time, only the first branch 61 has a medium flowing in, and the first water heat exchanger 3 is used alone for cooling; when the truck is in a driving state and the air-conditioning system is needed for heating, the first valve component 5 is switched to the fourth state. At this time, only the second branch 62 has a medium flowing in, and the second water heat exchanger 4 is used alone for heating; similarly, when the truck is parked, if it is necessary to achieve repeated switching between cooling and heating, it can also be implemented.

[0066] In this embodiment, the first valve member 5 is switched to the third state, only the medium flows into the first branch 61, and the first water heat exchanger 3 is used alone for cooling; when heating is required, the first valve member 5 is switched to the fourth state, only the medium flows into the second branch 62, and the second water heat exchanger 4 is used alone for heating, so that the system can quickly respond to different temperature requirements and improve the efficiency of the air-conditioning system. In this embodiment, two water heat exchangers are set up through a first valve member 5 to realize the functions of series, parallel, independent cooling, and independent heating, and realize the reasonable allocation of cooling and heating power according to the use conditions, making the whole system more reasonable, efficient, and energy-saving. In addition, these modes can effectively solve the safety problems caused by cockpit fogging caused by switching from cooling to heating during the season change. By switching the different states of the first valve member 5, the system can adapt to different climatic conditions and driving environments. Whether it is cooling or heating, it can provide a suitable temperature, enhance the adaptability and comfort of the system, avoid the problem of windshield fogging caused by evaporation of condensation water on the surface of the heat exchanger, and improve driving safety. Moreover, by increasing the state of the first valve component 5, more complex fluid control can be achieved without adding additional hardware, thereby simplifying the system design. Since the first valve component 5 can achieve multiple state switching, the number of other valve components required in the system is reduced, thereby reducing the maintenance cost and complexity of the system.

[0067] See also Figure 6 to Figure 7 As shown, when the first valve component 5 is in the third state, the third valve port 53 of the first valve component 5 is connected to the fourth valve port 54 of the first valve component 5, the water inlet of the first branch 61 is connected to the water outlet pipe 601 of the water circuit 6, the water outlet of the first branch 61 is connected to the third valve port 53 of the first valve component 5, and the return pipe 602 of the water circuit 6 is connected to the fourth valve port 54 of the first valve component 5; when the first valve component 5 is in the fourth state, the first valve port 51 of the first valve component 5 is connected to the second valve port 52 of the first valve component 5, the outlet pipe 601 of the water circuit 6 is connected to the first valve port 51 of the first valve component 5, the water inlet of the second branch 62 is connected to the second valve port 52 of the first valve component 5, and the water outlet of the second branch 62 is connected to the return pipe 602 of the water circuit 6.

[0068] Specifically, when the truck is in a driving state and needs to use the air conditioning system for cooling, the first valve component 5 switches to the third state, the third valve port 53 of the first valve component 5 is connected to the fourth valve port 54 of the first valve component 5, the water inlet of the first branch 61 is connected to the water outlet pipe 601 of the water circuit 6, the water outlet of the first branch 61 is connected to the third valve port 53 of the first valve component 5, and the return pipe 602 of the water circuit 6 is connected to the fourth valve port 54 of the first valve component 5. At this time, only the medium flows into the first branch 61, and the first water heat exchanger 3 is used alone. refrigeration; when the truck is in driving state and needs to use the air conditioning system for heating, the first valve component 5 switches to the fourth state, the first valve port 51 of the first valve component 5 is connected to the second valve port 52 of the first valve component 5, the outlet pipe 601 of the water circuit 6 is connected to the first valve port 51 of the first valve component 5, the water inlet of the second branch 62 is connected to the second valve port 52 of the first valve component 5, and the water outlet of the second branch 62 is connected to the return pipe 602 of the water circuit 6. At this time, only the medium flows into the second branch 62, and the second water heat exchanger 4 is used alone for heating.

[0069] In this embodiment, the temperature requirements are different according to the season change. Through this connection mode, the cooling and heating modes can be quickly switched according to the outside temperature and the temperature requirements in the cockpit, which enhances the adaptability of the system. When two heat exchangers are not needed at the same time, unnecessary energy consumption is reduced by closing one branch, thereby reducing energy consumption. The control mechanism inside the first valve member 5 of this embodiment can accurately open or close a specific valve port, thereby controlling the connection relationship between the outlet pipe 601 and the return pipe 602 of the water circuit 6 and the first branch 61 and the second branch 62. Through the different states of the first valve member 5, the pipeline can be configured to realize the working mode of parallel connection, series connection or single use of a branch. The intelligent control logic is integrated, and the state of the first valve member 5 can be automatically or manually switched according to the operating state and ambient temperature of the truck to adapt to different cooling and heating requirements.

[0070] See also Fig.10 and Fig.11 As shown, the water circulation system 2 also includes an engine heat exchanger 7, and the water circuit 6 is provided with a first heat exchange pipe segment 63 and a second heat exchange pipe segment 64, the water inlets of the first heat exchange pipe segment 63 and the second heat exchange pipe segment 64 are respectively connected to the return pipe 602 of the water circuit 6, and the water outlets of the first heat exchange pipe segment 63 and the second heat exchange pipe segment 64 can be selectively connected to the outlet pipe 601 of the water circuit 6, respectively, and the medium in the first heat exchange pipe segment 63 flows through the first refrigerant heat exchanger 101, and the engine heat exchanger 7 is arranged on the second heat exchange pipe segment 64, and the first refrigerant heat exchanger 101 is arranged in parallel with the engine heat exchanger 7.

[0071] Specifically, when the truck is in a parking state and the air conditioning system needs to be used, cooling and heating are achieved through the medium in the circulating water loop 6. At this time, the water inlet of the first heat exchange pipe section 63 is connected to the return pipe 602 of the water loop 6, and the medium in the water loop 6 exchanges heat with the first refrigerant heat exchanger 101. Since the water outlet of the first heat exchange pipe section 63 is connected to the outlet pipe 601 of the water loop 6, the medium circulates in the water loop 6 and then flows into the return pipe 602 of the water loop 6. When the truck is in a driving state, a large amount of heat energy will be generated when the engine is running. If this heat energy is not timely If the heat is dissipated, it will cause the engine parts to overheat or even cause damage. When the air-conditioning system needs heating, the heat dissipated by the engine can be fully utilized, and the temperature of the medium is lower than the engine temperature. The medium is equivalent to being able to dissipate heat for the engine. At this time, the water inlet of the second heat exchange pipe section 64 is connected to the return pipe 602 of the water circuit 6, the medium in the water circuit 6 exchanges heat with the first refrigerant heat exchanger 101, and the water outlet of the second heat exchange pipe section 64 is connected to the outlet pipe 601 of the water circuit 6. After the medium circulates in the water circuit 6, it flows into the return pipe 602 of the water circuit 6.

[0072] In this embodiment, by utilizing the heat generated by the engine during operation, the engine heat exchanger 7 can improve the energy utilization efficiency of the entire system and reduce energy waste. In the driving state, the engine heat exchanger 7 can be used as a heat source to enhance the heating capacity of the air conditioning system. Especially when the outside temperature is low, the engine heat exchanger 7 can provide a more comfortable driving environment through effective heating. This additional heat source is essential for maintaining the temperature in the cockpit. In addition, using the waste heat of the engine for heating reduces the demand for additional energy, thereby reducing fuel consumption and exhaust emissions, and is more environmentally friendly. The engine heat exchanger 7 helps to dissipate the heat generated by the engine and prevent the engine from overheating, thereby protecting the engine and extending its service life.

[0073] In addition, the engine heat exchanger 7 is arranged in parallel with the first refrigerant heat exchanger 101, which can quickly respond to heating needs and improve the response speed of the system. Through effective thermal management, the engine heat exchanger 7 helps to reduce system failures caused by extreme temperature changes and improve the reliability and durability of the system. The design of the first heat exchange pipe section 63 and the second heat exchange pipe section 64 allows the medium in the water circulation system 2 to flow through different heat exchangers in different sections, which can more effectively utilize thermal energy and improve heat exchange efficiency. Through reasonable design of the pipe section, more heat exchange can be achieved in a limited space, making the entire heat exchanger structure more compact. Moreover, the first heat exchange pipe section 63 and the second heat exchange pipe section 64 can be connected to the outlet pipe 601 and the return pipe 602 of the water circuit 6 as needed, providing a flexible heat exchange path to adapt to different working conditions and environmental changes. Due to the compact structure, this design can reduce the footprint of the equipment, which is particularly important for applications with limited space.

[0074] It is worth mentioning that the main working principle of the engine heat exchanger 7 is heat exchange. When the engine is running, the inhaled outside air will be transported to the engine's oil circuit. The oil circuit is responsible for lubrication and heat dissipation of engine components to ensure that the engine always maintains a safe temperature state. In this process, when the engine oil flows through the heat exchanger, it will exchange heat with the medium inside the heat exchanger. Compared with using the refrigerant circulation system 1 for heating, setting up the engine heat exchanger 7 can save energy.

[0075] See also Figures 1 to 11 As shown, the water circulation system 2 further includes a second valve member 8, the second valve member 8 has at least a fifth state and a sixth state, and the second valve member 8 is switchably arranged between the fifth state and the sixth state, and the water inlet and the water outlet of the first heat exchange pipe segment 63 and the second heat exchange pipe segment 64 are respectively selectively connected to the second valve member 8, so that the water outlet of the first heat exchange pipe segment 63 and the second heat exchange pipe segment 64 can be selectively connected to the water outlet pipe 601 of the water circuit 6;

[0076] When the first valve component 5 is in the second state and the second valve component is in the fifth state, the first refrigerant heat exchanger 101, the first water heat exchanger 3 and the second water heat exchanger 4 are arranged in series in sequence; when the first valve component 5 is in the second state and the second valve component is in the sixth state, the engine heat exchanger 7, the first water heat exchanger 3 and the second water heat exchanger 4 are arranged in series in sequence.

[0077] Specifically, when the truck is in the parking state and the air conditioning system needs to be used, cooling and heating are achieved through the medium in the circulating water loop 6. When the first valve 5 is in the second state and the second valve is in the fifth state, the first refrigerant heat exchanger 101, the first water heat exchanger 3 and the second water heat exchanger 4 are arranged in series in sequence. At this time, the water inlet of the first heat exchange pipe section 63 is connected to the return pipe 602 of the water loop 6, and the medium in the water loop 6 exchanges heat with the first refrigerant heat exchanger 101. Since the water outlet of the first heat exchange pipe section 63 is connected to the outlet pipe 601 of the water loop 6, the medium circulates in the water loop 6 and then flows into the return pipe 602 of the water loop 6. To the return pipe 602 of the water circuit 6; when the truck is in driving state and the air-conditioning system needs to heat, the first valve member 5 is in the second state, and the second valve member is in the sixth state, the engine heat exchanger 7, the first water heat exchanger 3 and the second water heat exchanger 4 are arranged in series in sequence, at this time, the water inlet of the second heat exchange pipe section 64 is connected to the return pipe 602 of the water circuit 6, the medium in the water circuit 6 exchanges heat with the first refrigerant heat exchanger 101, the water outlet of the second heat exchange pipe section 64 is connected to the outlet pipe 601 of the water circuit 6, and the medium circulates in the water circuit 6 and then flows into the return pipe 602 of the water circuit 6.

[0078] In this embodiment, the second valve member 8 has a fifth state and a sixth state, and can be switched between these two states, so as to control the connection relationship between the outlet of the first heat exchange pipe section 63 and the second heat exchange pipe section 64 and the return pipe 602 and the outlet pipe 601 of the water circuit 6. This design enables the system to adjust the water flow path according to different working conditions to achieve more efficient heat exchange. The requirements of the air-conditioning system are different when the truck is parked and driving. The state switching of the second valve member 8 can adapt to these changes. For example, in the parking state, by switching the second valve member 8 to the fifth state, the first refrigerant heat exchanger 101, the first water heat exchanger 3 and the second water heat exchanger 4 are connected in series to meet the cooling and heating requirements; and in the driving state, by switching to the sixth state, the heat emitted by the engine is used for heating, so as to realize the series connection of the engine heat exchanger 7, the first water heat exchanger 3 and the second water heat exchanger 4. In this embodiment, the second valve member 8 helps to improve the heat exchange efficiency by accurately controlling the water flow through different heat exchangers, and can adjust the water flow path so that the medium flows through the optimal heat exchanger combination to achieve the desired temperature control effect. The setting of the second valve member 8 helps to utilize energy more efficiently, such as utilizing the waste heat of the engine for heating, reducing the consumption of additional energy, and meeting the requirements of energy saving and environmental protection.

[0079] In addition, by setting the first valve component 5 and the second valve component 8 at the same time to realize a combination of different states, a richer thermal management mode switching can be achieved, and the number of components in the coolant flow path can be increased, thereby enriching the thermal management control strategy. The coordinated work of the first valve component 5 and the second valve component 8 can accurately control the water flow through different heat exchangers, improve the heat exchange efficiency, and thus improve the working efficiency of the entire system. According to different working conditions, by adjusting the states of the first valve component 5 and the second valve component 8, the water flow path can be flexibly adjusted to enhance the adaptability of the system.

[0080] See also Figures 1 to 11 As shown, when the two valve components are in the fifth state, the second valve port 82 and the first valve port 81 of the second valve component 8 are connected, and the water outlet of the first heat exchange pipe section 63 and the water outlet pipe 601 of the water circuit 6 are respectively connected to the second valve port 82 and the first valve port 81 of the second valve component 8; when the two valve components are in the sixth state, the third valve port 83 and the fourth valve port 84 of the second valve component 8 are connected, and the water outlet of the second heat exchange pipe section 64 and the water outlet pipe 601 of the water circuit 6 are respectively connected to the third valve port and the fourth valve port of the second valve component 8.

[0081] In this embodiment, when the truck is in the parking state and the air conditioning system needs to be used, cooling and heating are achieved through the medium in the circulating water loop 6. When the first valve component 5 is in the second state and the second valve component is in the fifth state, the second valve port 82 of the second valve component 8 is connected to the first valve port 81, and the water outlet of the first heat exchange pipe section 63 and the water outlet pipe 601 of the water loop 6 are respectively connected to the second valve port 82 and the first valve port 81 of the second valve component 8. The first refrigerant heat exchanger 101, the first water heat exchanger 3 and the second water heat exchanger 4 are arranged in series in sequence. At this time, the water inlet of the first heat exchange pipe section 63 is connected to the return pipe 602 of the water loop 6, and the medium in the water loop 6 exchanges heat with the first refrigerant heat exchanger 101. Since the water outlet of the first heat exchange pipe section 63 is connected to the water outlet pipe 601 of the water loop 6, the medium circulates in the water loop 6 and then flows into the return pipe 602 of the water circuit 6; when the truck is in driving state and the air conditioning system needs to heat, the first valve component 5 is in the second state, and the second valve component 8 is in the sixth state, the third valve port 83 and the fourth valve port 84 of the second valve component 8 are connected, and the outlet of the second heat exchange pipe section 64 and the outlet pipe 601 of the water circuit 6 are respectively connected to the third valve port 83 and the fourth valve port 84 of the second valve component 8, the engine heat exchanger 7, the first water heat exchanger 3 and the second water heat exchanger 4 are arranged in series in sequence, at this time, the water inlet of the second heat exchange pipe section 64 is connected to the return pipe 602 of the water circuit 6, the medium in the water circuit 6 exchanges heat with the first refrigerant heat exchanger 101, the outlet of the second heat exchange pipe section 64 is connected to the outlet pipe 601 of the water circuit 6, and the medium circulates in the water circuit 6 and then flows into the return pipe 602 of the water circuit 6.

[0082] In this embodiment, the use of the second valve member 8 can reduce the number of required pipes and connectors, simplify system design, reduce manufacturing and maintenance costs, and by reducing the number of pipe connection points in the system, reduce the risk of leakage and enhance system reliability.

[0083] As a specific implementation, the water circulation system 2 further includes a water pump, which is disposed on the water outlet pipe 601 of the water circuit 6 , and is used to pump the medium into the first branch 61 and the second branch 62 , respectively.

[0084] It is worth noting that, in the present embodiment, the water circuit 6 comprises an outlet pipe 601 and a return pipe 602, one end of the return pipe 602 is connected to the first branch 61 and / or the second branch 62, and the other end of the return pipe 602 is respectively connected to the water inlet of the first heat exchange pipe segment 63 and the second heat exchange pipe segment 64; one end of the outlet pipe 601 is connected to the water outlet of the first heat exchange pipe segment 63 and / or the second heat exchange pipe segment 64, and the other end of the outlet pipe is connected to the first branch 61 and / or the second branch 62, so that the first water heat exchanger 3 and the second water heat exchanger 4 can be connected in parallel or in series, and the first heat exchange pipe segment 63 and the second heat exchange pipe segment 64 are arranged in parallel, so that the first refrigerant heat exchanger 101 and the engine heat exchanger 7 are connected in parallel.

[0085] See also Figures 12 to 19 As shown, the first valve component 5 and the second valve component 8 each include a housing 901, a valve core 902 and a motor 903, wherein the output shaft of the motor 903 is connected to the valve core 902, and the valve core 902 is rotatably disposed in the housing 901; a plurality of valve ports are disposed on the housing 901, a plurality of conducting structures are disposed on the valve core 902, and the conducting structures are used to connect two valve ports, and the valve core 902 has a plurality of rotational positions so that the plurality of valve ports are respectively connected to different conducting structures.

[0086] Specifically, when the first valve component 5 and the second valve component 8 need to switch states, the motor 903 drives the valve core 902 to rotate to the corresponding position, and the conducting structure can connect the two valve ports to each other. After the pipeline is connected to the valve port, the connection between the two pipelines can be achieved. When the valve body needs to switch states, the motor 903 drives the valve core 902 to rotate again, so that another conducting structure is connected to the valve port, thereby realizing the switching between different states of the valve body.

[0087] In this embodiment, the valve core 902 is driven to rotate by the motor 903, so that the water flow path can be precisely controlled, ensuring that the medium flows through a specific heat exchanger, improving the heat exchange efficiency and the accuracy of the system response, and the valve core 902 is rotatably arranged in the housing 901, so that the valve body can quickly respond to the control command and realize the rapid switching between states. The direct connection between the motor 903 and the valve core 902 simplifies the valve body structure, making the overall design more compact and saving space. Moreover, by setting multiple conduction structures, the valve core 902 has multiple rotation positions, allowing the valve body to have a high adjustable ratio, which means that one valve can replace multiple valves to meet a wide range of flow requirements, reduce material and infrastructure costs, and can be connected with different conduction structures as needed, increasing the flexibility of operation. In addition, multiple conducting structures enable the valve core 902 to connect to different valve ports at different rotational positions, thereby realizing a variety of fluid flow direction combinations to meet complex fluid control requirements, and multiple conducting structures allow the air-conditioning system to adjust the fluid flow direction according to the different heat exchange requirements of the water circulation system 2, thereby enhancing the adaptability and flexibility of the system, so that a valve core 902 with multiple conducting structures can replace multiple simple valves, thereby simplifying the system design, reducing the number of valves required, and reducing manufacturing and maintenance costs.

[0088] See also Figures 12 to 19 As shown, the valve core 902 has at least four rotation positions. When the valve core 902 is located at the first rotation position, the first valve component 5 is in the first state; when the valve core 902 is located at the second rotation position, the first valve component 5 is in the second state; when the valve core 902 is located at the third rotation position, the first valve component 5 is in the third state, or the second valve component 8 is in the sixth state; when the valve core 902 is located at the fourth rotation position, the first valve component 5 is in the fourth state, or the second valve component 8 is in the fifth state.

[0089] Specifically, when the valve core 902 is located at the first rotation position, the first valve component 5 is in the first state, the first valve port 51 of the first valve component 5 is connected to the second valve port 52 of the first valve component 5, the third valve port 53 of the first valve component 5 is connected to the fourth valve port 54 of the first valve component 5, the water inlet of the first branch 61 is connected to the water outlet pipe 601 of the water circuit 6, the water outlet of the first branch 61 is connected to the third valve port 53 of the first valve component 5, and the return pipe 602 of the water circuit 6 is connected to the fourth valve port 54 of the first valve component 5; the water outlet pipe 601 of the water circuit 6 is connected to the first valve port 51 of the first valve component 5, the water inlet of the second branch 62 is connected to the second valve port 52 of the first valve component 5, the water outlet of the second branch 62 is connected to the return pipe 602 of the water circuit 6, and the first water heat exchanger 3 and the second water heat exchanger 4 are arranged in parallel.

[0090] Specifically, when the valve core 902 is located at the second rotation position, the first valve component 5 is in the second state, the third valve port 53 of the first valve component 5 and the second valve port 52 of the first valve component 5 are connected, the outlet pipe 601 of the water circuit 6 is connected to the water inlet of the first branch 61, the water outlet of the first branch 61 is connected to the third valve port 53 of the first valve component 5, the water inlet of the second branch 62 is connected to the second valve port 52 of the first valve component 5, the water outlet of the first branch 61 is connected to the return pipe 602 of the water circuit 6, and the first water heat exchanger 3 and the second water heat exchanger 4 are arranged in parallel.

[0091] Specifically, when the valve core 902 is located at the third rotation position, the first valve component 5 is in the third state, the third valve port 53 of the first valve component 5 is connected to the fourth valve port 54 of the first valve component 5, the water inlet of the first branch 61 is connected to the water outlet pipe 601 of the water circuit 6, the water outlet of the first branch 61 is connected to the third valve port 53 of the first valve component 5, and the return pipe 602 of the water circuit 6 is connected to the fourth valve port 54 of the first valve component 5; or the second valve component 8 is in the sixth state, the third valve port and the fourth valve port of the second valve component 8 are connected, the water outlet of the second heat exchange pipe section 64 and the water outlet pipe 601 of the water circuit 6 are respectively connected to the third valve port and the fourth valve port of the second valve component 8.

[0092] Specifically, when the valve core 902 is located in the fourth rotation position, the first valve component 5 is in the fourth state, the water inlet and the water outlet of the second branch 62 are respectively connected to the water outlet pipe 601 and the return pipe 602 of the water circuit 6, and the water inlet and the water outlet of the first branch 61 are respectively disconnected from the water outlet pipe 601 and the return pipe 602 of the water circuit 6; or the second valve component 8 is in the fifth state, the second valve port and the first valve port of the second valve component 8 are connected, and the water outlet of the first heat exchange pipe section 63 and the water outlet pipe 601 of the water circuit 6 are respectively connected to the second valve port and the first valve port of the second valve component 8.

[0093] In this embodiment, a variety of different fluid flow direction combinations can be achieved through the multiple rotation positions of the valve core 902, thereby providing a more flexible control strategy to adapt to different working conditions and requirements. A variety of different fluid flow direction combinations can be achieved through the multiple rotation positions of the valve core 902, thereby providing a more flexible control strategy to adapt to different working conditions and requirements.

[0094] See also Figures 12 to 19As shown, the conduction structure is a groove structure, and the outer peripheral wall of the valve core 902 is sequentially provided with a first conduction structure 941, a second conduction structure 942 and a third conduction structure 943, the first conduction structure 941 and the second conduction structure 942 are vertically arranged, and the third conduction structure 943 is horizontally arranged; the housing 901 is provided with a first interface 951, a second interface 952, a third interface 953 and a fourth interface 954; when the valve core 902 is located at the first rotation position, the two ends of the first conduction structure 941 are respectively arranged corresponding to the first interface 951 and the second interface 952, and the second conduction structure 943 is horizontally arranged. The two ends of the conducting structure 942 are respectively arranged corresponding to the third interface 953 and the fourth interface 954; when the valve core 902 is located at the second rotation position, the two ends of the third conducting structure 943 are respectively arranged corresponding to the second interface 952 and the third interface 953; when the valve core 902 is located at the third rotation position, the two ends of the first conducting structure 941 are respectively arranged corresponding to the third interface 953 and the fourth interface 954; when the valve core 902 is located at the fourth rotation position, the two ends of the second conducting structure 942 are respectively arranged corresponding to the first interface 951 and the second interface 952.

[0095] In this embodiment, the vertical and horizontal conductive structure design can optimize the spatial layout, so that more fluid connection paths can be realized in a limited space, and the compactness and space utilization of the system can be improved. Through the conductive structures in different directions (vertical and horizontal), the fluid flow direction can be more flexibly controlled to realize complex fluid control logic to adapt to different working modes and needs, and through the reasonable arrangement of the conductive structure, the flow resistance of the fluid in the system can be reduced, and the fluid flow efficiency can be improved, thereby reducing the energy consumption of the system. The precise corresponding setting of the conductive structure and the interface can reduce the risk of fluid leakage, enhance the sealing and reliability of the system, and different conductive structure arrangements can help to more effectively manage the heat exchange of the fluid, especially in systems that require precise temperature control. Moreover, the arrangement of the three conductive structures in this embodiment can simplify the manufacturing process, reduce the complexity in production, and improve production efficiency.

[0096] As a specific implementation, the valve core 902 and the interface on the housing 901 are in a face-to-face manner, the conduction structure of the valve core 902 is set corresponding to the interface, the housing 901 is installed on the base 904, and the base 904 is also provided with four interfaces, and the four interfaces are provided with a first seal 905, and are set corresponding to the interfaces on the housing 901, and the base 904 is provided with four water pipe joints for connection with the air conditioning system. In order to further improve the sealing performance of the valve body, the outer peripheral edge of the conduction structure is provided with a second seal 906, and the second seal 906 is tightly fitted with the inner wall of the housing 901 to prevent water leakage. The first seal 905 and the second seal 906 are both relative seals. In order to facilitate the installation of the motor 903, a fixing plate 907 is provided on the housing 901, and the motor 903 is installed on the fixing plate 907. The output shaft of the motor 903 extends out of the fixing plate 907 and is connected to the valve core 902.

[0097] See also Figures 1 to 11 As shown, the refrigerant circulation system 1 is arranged outside the heat exchange environment, and the refrigerant circulation system 1 also includes a compressor 103, a throttle valve 104, a second refrigerant heat exchanger 105 and a four-way valve 106. The first refrigerant heat exchanger 101, the throttle valve 104 and the second refrigerant heat exchanger 105 are arranged in series in sequence, the intake pipe of the compressor 103 is connected to the first interface of the four-way valve 106, the outlet pipe of the compressor 103 is connected to the second interface of the four-way valve 106, the intake pipe of the first refrigerant heat exchanger 101 is connected to the third interface of the four-way valve 106, and the outlet pipe of the second refrigerant heat exchanger 105 is connected to the fourth interface of the four-way valve 106.

[0098] Specifically, taking the refrigeration of the refrigerant circulation system 1 as an example, the suction pipe of the compressor 103 is connected to the first interface of the four-way valve 106, and the outlet pipe of the compressor 103 is connected to the second interface of the four-way valve 106. The compressor 103 absorbs low-pressure and low-temperature refrigerant vapor from the evaporator (the first refrigerant heat exchanger 101), and then compresses it into high-pressure hot steam; the compressed high-pressure hot steam enters the second refrigerant heat exchanger 105 (condenser) through the second interface of the four-way valve 106, where it releases heat to the surrounding environment and changes from gas to high-pressure liquid. The condensed high-pressure liquid refrigerant passes through the throttle valve 104 again to further reduce the pressure and temperature. The low-pressure and low-temperature liquid refrigerant enters the first refrigerant heat exchanger 101 (evaporator), where it absorbs heat and evaporates, thereby cooling the water or other medium flowing through the evaporator to achieve a refrigeration effect. When heating, the flow direction of the refrigerant is switched, and the four-way valve 106 is used to control the flow direction of the refrigerant to achieve the switching between the cooling and heating modes. In cooling mode, the four-way valve 106 allows the high-pressure outlet gas of the compressor 103 to enter the condenser and the low-pressure intake gas to enter the evaporator. In heating mode, the four-way valve 106 switches the flow direction so that the roles of the evaporator and the condenser are interchanged.

[0099] In this embodiment, the refrigerant system is made into an integrated module and placed outside the cockpit to avoid safety accidents caused by leakage. The OEM only needs to install the module independently, and reserve a water pipe interface to connect the cockpit heat exchanger through medium water for air conditioning. The system has high integration and is convenient to install compared with the distributed installation of components of traditional driving air conditioners, and has the advantages of no need for the OEM to inject refrigerant, and low risk of refrigerant leakage. In addition, setting the refrigerant circulation system 1 outside the passenger compartment can better manage the thermal environment of the whole vehicle, making the flow and heat transfer process of each subsystem in the vehicle that affects and interferes with each other in the thermal environment of the whole vehicle more complicated, but it can also control the temperature more finely.

[0100] It is worth noting that the first refrigerant heat exchanger 101 is a plate heat exchanger. There are two flow paths in the first refrigerant heat exchanger 101, one of which is used for the circulation of the refrigerant, and the other is used for the circulation of the medium. The flow directions of the two paths are opposite to achieve heat exchange. In this embodiment, the heat exchange environment can be the passenger compartment. When the air-conditioning system reaches other spaces, the heat exchange environment can also refer to the indoor space. This embodiment drives the compressor 103 to work by supplying power to the compressor 103. The power source can be a battery. During driving, the battery is charged for standby when parking. In addition to the compressor 103 requiring electricity, the first valve 5, the second valve 8 and the four-way valve 106 also require electricity. It is based on the electric drive of the compressor 103 that even when the truck is parked, the engine does not need to be run, and the cooling and heating requirements can still be met.

[0101] See also Figure 1 and Fig. 20 As shown, the water circulation system 2 also includes an air outlet component 10, which includes an air conditioning box 111 and fan blades 112. The fan blades 112, the first water heat exchanger 3 and the second water heat exchanger 4 are arranged in the air conditioning box 111, and the second water heat exchanger 4 is close to the air outlet of the air conditioning box 111.

[0102] In this embodiment, during the season of changing seasons, the temperature changes repeatedly and needs to be switched between cooling and heating. If the same heat exchanger is used for cooling and heating, the condensation water generated on the surface of the heat exchanger during cooling will evaporate and blow into the cockpit after switching to heating, causing the windshield to fog up, which will affect the driver's vision and cause traffic safety accidents. Therefore, the air conditioner is designed with two water heat exchangers that can be used for cooling and heating separately. The first water heat exchanger 3 can be used for cooling alone, and the second water heat exchanger 4 can be used for heating alone, and the second water heat exchanger 4 is placed at the air outlet (close to the side of the cockpit air outlet) to prevent the first water heat exchanger 3 from evaporating water after the hot air passes through the cooling to produce condensed water, causing the windshield to fog up. In this case, when cooling, the first valve 5 is adjusted to the third state, and only the first water heat exchanger 3 operates independently; when switching to heating, the first valve 5 is adjusted to the fourth state, and only the second water heat exchanger 4 operates independently.

[0103] In this embodiment, a separate heat exchanger can perform heat exchange more efficiently and can be optimized specifically for cooling or heating, rather than switching modes in the same heat exchanger, which can improve the overall efficiency of the air conditioning system. By accurately controlling which heat exchanger is in operation, unnecessary energy consumption can be reduced. For example, in heating mode, a heat exchanger that does not require cooling can be turned off, thereby reducing energy waste. And by accurately controlling which heat exchanger is in operation, unnecessary energy consumption can be reduced. For example, in heating mode, a heat exchanger that does not require cooling can be turned off, thereby reducing energy waste. In addition, independent heat exchangers reduce the risk of failure of the entire system due to failure of one heat exchanger, and improve the reliability and stability of the system.

[0104] A vehicle includes an integrated air-conditioning system for both traveling and stationary use, wherein the air-conditioning system is the above-mentioned air-conditioning system.

[0105] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0106] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention. The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention, and these improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. An air conditioning system, characterized in that: include: A refrigerant circulation system (1) and a water circulation system (2); The refrigerant circulation system (1) comprises a first refrigerant heat exchanger (101) and a refrigerant circuit (102), wherein the first refrigerant heat exchanger (101) is arranged on the refrigerant circuit (102); The water circulation system (2) comprises a first water heat exchanger (3), a second water heat exchanger (4), a first valve (5) and a water circuit (6); the medium in the water circuit (6) flows through the first refrigerant heat exchanger (101); the water circuit (6) is provided with a first branch (61) and a second branch (62); the first water heat exchanger (3) is provided on the first branch (61), and the second water heat exchanger (4) is provided on the second branch (62); The water outlet pipe (601) and the water return pipe (602) of the water circuit (6) can be selectively connected to the valve port of the first valve member (5); the water inlet and the water outlet of the first branch (61) and the second branch (62) can be selectively connected to the valve port of the first valve member (5), respectively; the first valve member (5) has at least a first state and a second state, and the first valve member (5) can be switchably arranged between the first state and the second state; when the first valve member (5) is in the first state, the water inlets of the first branch (61) and the second branch (62) are respectively connected to the water outlet pipe (601) of the water circuit (6), and the first water heat exchanger (3) and the second water heat exchanger (4) are arranged in parallel; when the first valve member (5) is in the second state, the water inlet of the first branch (61) is connected to the water outlet pipe (601) of the water circuit (6), and the first water heat exchanger (3) and the second water heat exchanger (4) are arranged in series.

2. The air conditioning system according to claim 1, characterized in that: When the first valve component (5) is in the first state, the first valve port (51) of the first valve component (5) and the second valve port (52) of the first valve component (5) are in conduction, the third valve port (53) of the first valve component (5) and the fourth valve port (54) of the first valve component (5) are in conduction, the water inlet of the first branch (61) is connected to the water outlet pipe (601) of the water circuit (6), the water outlet of the first branch (61) is connected to the third valve port (53) of the first valve component (5), and the water The return pipe (602) of the water circuit (6) is connected to the fourth valve port (54) of the first valve member (5); the outlet pipe (601) of the water circuit (6) is connected to the first valve port (51) of the first valve member (5); the water inlet of the second branch (62) is connected to the second valve port (52) of the first valve member (5); the water outlet of the second branch (62) is connected to the return pipe (602) of the water circuit (6); and the first water heat exchanger (3) and the second water heat exchanger (4) are arranged in parallel; When the first valve component (5) is in the second state, the third valve port (53) of the first valve component (5) and the second valve port (52) of the first valve component (5) are connected, the water outlet pipe (601) of the water circuit (6) is connected to the water inlet of the first branch (61), the water outlet of the first branch (61) is connected to the third valve port (53) of the first valve component (5), the water inlet of the second branch (62) is connected to the second valve port (52) of the first valve component (5), the water outlet of the first branch (61) is connected to the return pipe (602) of the water circuit (6), and the first water heat exchanger (3) and the second water heat exchanger (4) are arranged in parallel.

3. The air conditioning system according to claim 1, characterized in that: The first valve member (5) further comprises a third state and a fourth state. The first valve member (5) is switchably arranged between the first state, the second state, the third state and the fourth state. When the first valve member (5) is in the third state, the water inlet and the water outlet of the first branch (61) are respectively connected to the water outlet pipe (601) and the water return pipe (602) of the water circuit (6), and the water inlet and the water outlet of the second branch (62) are respectively disconnected from the water outlet pipe (601) and the water return pipe (602) of the water circuit (6); When the first valve member (5) is in the fourth state, the water inlet and the water outlet of the second branch (62) are respectively connected to the water outlet pipe (601) and the water return pipe (602) of the water circuit (6), and the water inlet and the water outlet of the first branch (61) are respectively disconnected from the water outlet pipe (601) and the water return pipe (602) of the water circuit (6).

4. The air conditioning system according to claim 3, characterized in that: When the first valve component (5) is in the third state, the third valve port (53) of the first valve component (5) is connected to the fourth valve port (54) of the first valve component (5), the water inlet of the first branch (61) is connected to the water outlet pipe (601) of the water circuit (6), the water outlet of the first branch (61) is connected to the third valve port (53) of the first valve component (5), and the water return pipe (602) of the water circuit (6) is connected to the fourth valve port (54) of the first valve component (5); When the first valve component (5) is in the fourth state, the first valve port (51) of the first valve component (5) is connected to the second valve port (52) of the first valve component (5), the water outlet pipe (601) of the water circuit (6) is connected to the first valve port (51) of the first valve component (5), the water inlet of the second branch (62) is connected to the second valve port (52) of the first valve component (5), and the water outlet of the second branch (62) is connected to the return pipe (602) of the water circuit (6).

5. The air conditioning system according to claim 1, characterized in that: The water circulation system (2) also includes an engine heat exchanger (7), and the water circuit (6) is provided with a first heat exchange pipe section (63) and a second heat exchange pipe section (64). The water inlets of the first heat exchange pipe section (63) and the second heat exchange pipe section (64) are respectively connected to the return pipe (602) of the water circuit (6), and the water outlets of the first heat exchange pipe section (63) and the second heat exchange pipe section (64) are respectively selectively connected to the outlet pipe (601) of the water circuit (6). The medium in the first heat exchange pipe section (63) flows through the first refrigerant heat exchanger (101), and the engine heat exchanger (7) is arranged on the second heat exchange pipe section (64). The first refrigerant heat exchanger (101) and the engine heat exchanger (7) are arranged in parallel.

6. The air conditioning system according to claim 5, characterized in that: The water circulation system (2) further comprises a second valve member (8), the second valve member (8) having at least a fifth state and a sixth state, and the second valve member (8) is switchably arranged between the fifth state and the sixth state, and the water inlet and the water outlet of the first heat exchange pipe section (63) and the second heat exchange pipe section (64) are respectively selectively connected to the second valve member (8), so that the water outlets of the first heat exchange pipe section (63) and the second heat exchange pipe section (64) are selectively connected to the water outlet pipe (601) of the water circuit (6); When the first valve component (5) is in the second state and the second valve component is in the fifth state, the first refrigerant heat exchanger (101), the first water heat exchanger (3) and the second water heat exchanger (4) are arranged in series in sequence; when the first valve component (5) is in the second state and the second valve component is in the sixth state, the engine heat exchanger (7), the first water heat exchanger (3) and the second water heat exchanger (4) are arranged in series in sequence.

7. The air conditioning system according to claim 6, characterized in that: When the two valve components are in the fifth state, the second valve port (82) and the first valve port (81) of the second valve component (8) are connected, and the water outlet of the first heat exchange pipe section (63) and the water outlet pipe (601) of the water circuit (6) are respectively connected to the second valve port (82) and the first valve port (81) of the second valve component (8); when the two valve components are in the sixth state, the third valve port (83) and the fourth valve port (84) of the second valve component (8) are connected, and the water outlet of the second heat exchange pipe section (64) and the water outlet pipe (601) of the water circuit (6) are respectively connected to the third valve port (83) and the fourth valve port (84) of the second valve component (8).

8. The air conditioning system according to any one of claims 1 to 6, characterized in that: The first valve component (5) and the second valve component (8) both comprise a housing (901), a valve core (902) and a motor (903); the output shaft of the motor (903) is connected to the valve core (902); the valve core (902) is rotatably arranged in the housing (901); a plurality of valve ports are arranged on the housing (901); a plurality of conducting structures are arranged on the valve core (902); the conducting structures are used to connect two of the valve ports; the valve core (902) has a plurality of rotational positions so that the plurality of valve ports are respectively connected to different conducting structures.

9. The air conditioning system according to claim 8, characterized in that: The valve core (902) has at least four rotational positions. When the valve core (902) is located at the first rotational position, the first valve component (5) is in the first state; when the valve core (902) is located at the second rotational position, the first valve component (5) is in the second state; when the valve core (902) is located at the third rotational position, the first valve component (5) is in the third state, or the second valve component (8) is in the sixth state; when the valve core (902) is located at the fourth rotational position, the first valve component (5) is in the fourth state, or the second valve component (8) is in the fifth state.

10. The air conditioning system according to claim 9, characterized in that: The conduction structure is a groove structure, and a first conduction structure (941), a second conduction structure (942) and a third conduction structure (943) are sequentially arranged on the outer peripheral wall of the valve core (902), the first conduction structure (941) and the second conduction structure (942) are arranged vertically, and the third conduction structure (943) is arranged horizontally; the housing (901) is provided with a first interface (951), a second interface (952), a third interface (953) and a fourth interface (954); When the valve core (902) is located at the first rotation position, the two ends of the first conducting structure (941) are respectively arranged corresponding to the first interface (951) and the second interface (952), and the two ends of the second conducting structure (942) are respectively arranged corresponding to the third interface (953) and the fourth interface (954); when the valve core (902) is located at the second rotation position, the two ends of the third conducting structure (943) are respectively arranged corresponding to the second interface (952) and the third interface (953); when the valve core (902) is located at the third rotation position, the two ends of the first conducting structure (941) are respectively arranged corresponding to the third interface (953) and the fourth interface (954); when the valve core (902) is located at the fourth rotation position, the two ends of the second conducting structure (942) are respectively arranged corresponding to the first interface (951) and the second interface (952).

11. The air conditioning system according to claim 1, characterized in that: The refrigerant circulation system (1) is arranged outside the heat exchange environment, and the refrigerant circulation system (1) also includes a compressor (103), a throttle valve (104), a second refrigerant heat exchanger (105) and a four-way valve (106). The first refrigerant heat exchanger (101), the throttle valve (104) and the second refrigerant heat exchanger (105) are arranged in series in sequence. The intake pipe of the compressor (103) is connected to the first interface of the four-way valve (106), the outlet pipe of the compressor (103) is connected to the second interface of the four-way valve (106), the intake pipe of the first refrigerant heat exchanger (101) is connected to the third interface of the four-way valve (106), and the outlet pipe of the second refrigerant heat exchanger (105) is connected to the fourth interface of the four-way valve (106).

12. The air conditioning system according to claim 1, characterized in that: The water circulation system (2) further comprises an air outlet component (10), wherein the air outlet component (10) comprises an air conditioning box (111) and a fan blade (112), wherein the fan blade (112), the first water heat exchanger (3) and the second water heat exchanger (4) are arranged in the air conditioning box (111), and the second water heat exchanger (4) is close to the air outlet of the air conditioning box (111).

13. A vehicle, comprising an integrated air-conditioning system for travel and stationary use, wherein the air-conditioning system is the air-conditioning system according to any one of claims 1 to 12.

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