Air conditioning systems and automobiles

Abstract

The air conditioning system includes a first heat exchange duct (10), a second heat exchange duct (40), and a circulation system. The first heat exchange duct includes an evaporator (11) and has a first suction end (12) communicating with a fresh air inlet (30) communicating with the outside of the vehicle and a first outlet end (13) communicating with a first outlet (14) communicating with the inside of the vehicle. The second heat exchange duct includes a heater (41) and has a second suction end (42) communicating with the fresh air inlet and / or the first suction end and a second outlet end (43) communicating with a second outlet (44) communicating with the inside of the vehicle. The circulation system includes a circulation air inlet (20) communicating with the interior of the automobile, and the circulation air inlet communicates with the first suction end and / or the second suction end, respectively, to collect the gas that has been heat exchanged through the first heat exchange duct and / or the second heat exchange duct, and circulate and send it to the first suction end and / or the second suction end. An automobile including the air conditioning system is further disclosed. By controlling the opening or closing of the fresh air inlet, the first outlet, and the second outlet, the normal operation of the air conditioning system in the heating mode and the cooling mode and the mutual switching between the two modes are realized, and the normal operation of the air conditioning system is ensured.

Description

[Technical field]

[0001] (CROSS REFERENCE TO RELATED APPLICATIONS) This application claims priority to a Chinese patent application having application number 202211313745.4, filed on October 25, 2022, the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the technical field of air conditioning, and in particular to air conditioning systems and automobiles. [Background technology]

[0003] An automobile air conditioning system generally has three operating modes: cooling, heating, and ventilation. When driving, it is necessary to introduce fresh air from the outside. On a cold winter day, the outdoor environmental temperature is very low, so the temperature of the fresh air that the air conditioner draws in from the outside is also very low, making it difficult for the air conditioning system to enter into operation quickly and slowing down the heating speed. On a hot summer day, the outdoor environmental temperature is very high, so the temperature of the fresh air that the air conditioner draws in from the outside is also very high, making it difficult for the air conditioning system to enter into operation quickly and slowing down the heating speed. This causes passengers to be in an extremely cold or hot state for a long time, affecting the user's riding experience. Summary of the Invention [Problem to be solved by the invention]

[0004] The main object of the present application is to propose an air conditioning system that aims to improve the heating or cooling speed of the air conditioning system. [Means for solving the problem]

[0005] In order to achieve the above object, the present invention provides an air conditioning system comprising: a first heat exchange duct having an evaporator built therein, a first suction end communicating with a fresh air inlet communicating with the outside of the vehicle, and a first outlet end communicating with a first outlet communicating with the inside of the vehicle; a second heat exchange duct having a heater built therein, a second suction end communicating with the fresh air inlet and / or the first suction end, and a second outlet end communicating with a second outlet communicating with the interior of the vehicle; and a circulation system including a circulation air inlet communicating with the interior of the automobile, the circulation air inlet communicating with the first suction end and / or the second suction end, respectively, for recovering gas that has been heat exchanged through the first heat exchange duct and / or the second heat exchange duct, and circulating and sending it to the first suction end and / or the second suction end.

[0006] In one embodiment, the circulation system further includes a first circulation duct, the first circulation duct communicates with the first heat exchange duct, and collects the gas that has been heat exchanged through the first heat exchange duct and circulates it to the first suction end; and / or The circulation system further includes a second circulation duct that is in communication with the second heat exchange duct and recovers the gas that has been heat exchanged through the second heat exchange duct and circulates and sends it out to the first suction end or the second suction end.

[0007] In one embodiment, the air conditioning system has a heating mode, and the heating mode has a first heating state. In the first heating state, the fresh air inlet, the second outlet, and the second circulation duct are all conductive, and the circulation air inlet, the first outlet, and the first circulation duct are all blocked, so that the gas outside the vehicle enters the second heat exchange duct from the fresh air inlet, and after heat exchange through the second heat exchange duct, a part of the gas enters the second circulation duct and continues to circulate to the second suction end, and the other part flows into the vehicle interior from the second outlet to heat the vehicle interior.

[0008] In one embodiment, the heating mode further includes a second heating state, and can be switched from the first heating state to the second heating state. In the second heating state, the circulating air inlet, the fresh air inlet, the first air outlet, and the second air outlet are all conductive, and the first circulation duct and the second circulation duct are all blocked, so that after the gas outside the vehicle enters through the fresh air inlet, a part of the gas flows into the vehicle interior through the first air outlet, and another part of the gas flows into the vehicle interior after being heat exchanged through the second heat exchange duct, and both parts of the gas flow into the air conditioning system again through the circulating air inlet; or The heating mode further has a second heating state, and can be switched from the first heating state to the second heating state. In the second heating state, the circulating air inlet, the fresh air inlet and the second air outlet are all conductive, and the first air outlet, the first circulation duct and the second circulation duct are all blocked, so that gas outside the vehicle enters the second heat exchange duct from the fresh air inlet, flows into the vehicle interior after heat exchange, and re-enters the air conditioning system from the circulating air inlet.

[0009] In one embodiment, the air conditioning system further has a cooling mode, and the cooling mode has a first cooling state. In the first cooling state, the circulating air inlet, the first outlet and the first circulation duct are all conductive, and the fresh air inlet, the second outlet and the second circulation duct are all blocked, so that after the gas is heat exchanged through the first heat exchange duct, a part of the gas enters the first circulation duct and continues to circulate to the first suction end, and the other part is discharged into the vehicle interior through the first outlet to cool the vehicle interior, and then re-enters the air conditioning system through the circulating air inlet.

[0010] In one embodiment, the cooling mode further includes a second cooling state, and can be switched from the first cooling state to the second cooling state. In the second cooling state, the circulating air inlet, the first air outlet, and the second air outlet are all connected, and the fresh air inlet, the first circulation duct, and the second circulation duct are all blocked, so that the gas entering the first heat exchange duct flows into the vehicle interior through the first air outlet and the second air outlet, respectively, and re-enters the air conditioning system through the circulating air inlet; or The cooling mode further has a second cooling state, and can be switched from the first cooling state to the second cooling state. In the second cooling state, the circulating air inlet and the first outlet are all conductive, and the fresh air inlet, the second outlet, the first circulation duct and the second circulation duct are all blocked, so that the gas that enters the first heat exchange duct flows into the vehicle interior through the first outlet and re-enters the air conditioning system from the circulating air inlet.

[0011] In one embodiment, the second suction end of the second heat exchange duct is connected to the first blowing end of the first heat exchange duct, a blower is provided at the first suction end, and gas blown out via the blower passes through the first suction end, the first blowing end, and the second suction end in that order.

[0012] In one embodiment, the air conditioning system further includes a ventilation duct having one end communicating with the circulating air inlet and the other end communicating with the first suction end, the outlet of the first circulating duct, the outlet of the second circulating duct, and the fresh air inlet all communicate with the first suction end and / or the second suction end via the ventilation duct, and the blower is provided in the ventilation duct.

[0013] In one embodiment, the second heat exchange duct is fitted within the first heat exchange duct, and the second outlet is concentrically disposed within the first outlet.

[0014] In one embodiment, the circulating air inlet, the fresh air inlet, the first outlet, the second outlet, the first circulation duct and the second circulation duct are all provided with switching valves, and the multiple switching valves each control the opening and closing of the circulating air inlet, the fresh air inlet, the first outlet, the second outlet, the first circulation duct and the second circulation duct, and are capable of adjusting the suction / blowout ratio of the circulating air inlet, the fresh air inlet, the first outlet, the second outlet, the first circulation duct and the second circulation duct.

[0015] The present application further proposes a motor vehicle comprising a vehicle body and the above air conditioning system, said air conditioning system being disposed in said vehicle body.

[0016] (Beneficial Effects) According to the technical solution of the present application, a first heat exchange duct and a second heat exchange duct are provided, the first heat exchange duct has an evaporator built in, the first heat exchange duct has a first suction end communicating with a fresh air inlet communicating with the outside of the automobile, and a first outlet end communicating with a first outlet communicating with the inside of the automobile. The second heat exchange duct has a heater built in, the second heat exchange duct has a second suction end communicating with the fresh air inlet and / or the first suction end, and a second outlet end communicating with a second outlet communicating with the inside of the automobile. By controlling the conduction or blocking of the fresh air inlet, the first outlet, and the second outlet, the normal operation of the air conditioning system in the heating mode and the cooling mode and the mutual switching between the two modes are realized, and the normal operation of the air conditioning system is ensured.

[0017] However, in the actual working process, especially in the extremely cold or hot season, the operation of the evaporator and heater in the air conditioning system is affected, and the operation efficiency of both is reduced. As a result, it becomes difficult to rapidly cool or heat the air conditioning system. It takes longer for the temperature inside the vehicle to reach a comfortable temperature, which increases the waiting time of passengers and affects the riding experience of users. Therefore, a circulation system is provided, which includes a circulation air inlet communicating with the interior of the automobile, and the circulation air inlet communicates with the first suction end and / or the second suction end, respectively, and the circulation air inlet, the first outlet and the second outlet are all connected to the interior of the vehicle, so that the gas flowing out from the first outlet and / or the second outlet exchanges heat inside the vehicle and then flows back into the circulation air inlet, and is sent back to the first suction end and / or the second suction end from the circulation air inlet. In this way, the gas cooled through the evaporator is collected and enters the first suction end to lower the temperature of the gas entering the first heat exchange duct and assist the heat exchange of the evaporator, thereby facilitating rapid cooling of the air conditioning system. Alternatively, the gas heated through the heater is collected and enters the second heat exchange duct to raise the temperature of the gas entering the second heat exchange duct and assist the heating of the heater, thereby facilitating rapid heating of the air conditioning system. The time required for the interior temperature to reach a comfortable temperature is shortened, the waiting time of passengers is shortened, and the riding experience of the user is improved.

[0018] In order to more clearly describe the technical solutions of the embodiments of the present application and the prior art, the following will briefly describe the accompanying drawings required for the description of the embodiments or the prior art. It is obvious that the accompanying drawings in the following description are only some of the embodiments of the present application, and those skilled in the art can obtain other accompanying drawings based on the structures shown in these accompanying drawings without creative work. [Brief description of the drawings]

[0019] [Figure 1] 1 is a structural schematic diagram of an air conditioning system according to an embodiment of the present invention in a first heating state in a heating mode. [Diagram 2]2 is a structural schematic diagram of the air conditioning system of FIG. 1 in a second heating state in a heating mode. [Diagram 3] FIG. 2 is a structural schematic diagram of the air conditioning system of FIG. 1 in a first cooling state in a cooling mode. [Figure 4] FIG. 2 is a structural schematic diagram of the air conditioning system of FIG. 1 in a second cooling state in a cooling mode. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] The realization of the object, the function features and advantages of the present invention will be further explained in combination with the embodiments with reference to the attached drawings.

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present application in combination with the drawings in the embodiments of the present application. It is clear that the described embodiments are not all the embodiments of the present application, but only some of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments that a person skilled in the art can obtain without performing creative work fall within the scope of protection of the present application.

[0022] In addition, when the embodiments of the present application include directional indications (e.g., up, down, left, right, front, back, etc.), the directional indications are used only to explain the relative positional relationships, movement conditions, etc. between each part in a certain specific posture (see figure), and when the specific posture changes, the directional indications also change accordingly.

[0023] In addition, when the description of "first", "second", etc. is concerned in the embodiments of the present application, the description of "first", "second", etc. is used for explanatory purposes only, and should not be understood as indicating or implying the relative importance thereof, or as implicitly specifying the number of technical features presented. Therefore, a feature limited to "first" or "second" may include at least one of the features, either explicitly or implicitly. In addition, "and / or" appearing in the whole sentence means including three parallel proposals. Taking "A and / or B" as an example, it includes proposal A, or proposal B, or a proposal in which A and B are simultaneously satisfied. In addition, the technical proposals of each embodiment can be combined with each other as long as they can be realized by a person skilled in the art. If a combination of technical proposals causes a contradiction or cannot be realized, it should be understood that such a combination of technical proposals does not exist and is not within the scope of the protection sought by the present application.

[0024] This application proposes an air conditioning system.

[0025] In the embodiment of the present application, as shown in Figures 1 to 4, the air conditioning system includes a first heat exchange duct 10, a second heat exchange duct 40, and a circulation system, the first heat exchange duct 10 has an evaporator 11 built in, the first heat exchange duct 10 has a first suction end 12 communicating with a fresh air inlet 30 communicating with the outside of the automobile, and a first outlet end 13 communicating with a first outlet 14 communicating with the inside of the automobile. The second heat exchange duct 40 has a heater 41 built in, the second heat exchange duct 40 has a second suction end 42 communicating with the fresh air inlet 30 and / or the first suction end 12, and a second outlet end 43 communicating with a second outlet 44 communicating with the inside of the automobile. The circulation system includes a circulation air inlet 20 communicating with the interior of the automobile, which is connected to the first suction end 12 and / or the second suction end 42, respectively, and is used to recover gas that has been heat exchanged through the first heat exchange duct 10 and / or the second heat exchange duct 40, and circulate and send it to the first suction end 12 and / or the second suction end 42.

[0026] In one embodiment, the air conditioning system is fixed to the body of a vehicle, and an evaporator 11 is provided in the first heat exchange duct 10. In a cooling mode, fresh air formed by filtering external air through the air filtration system of the vehicle enters the first heat exchange duct 10 through the fresh air inlet 30, and the gas cooled through the first heat exchange duct 10 passes through the first outlet 13 and is discharged into the vehicle through the first outlet 14 to cool the vehicle interior. In a second heat exchange duct 40, there is a heater 41, which heats the gas in the second heat exchange duct 40, so that in a heating mode, fresh air formed by filtering external air through the air filtration system of the vehicle enters the second heat exchange duct 40 through the fresh air inlet 30, and the gas heated through the second heat exchange duct 40 passes through the second outlet 43 and is discharged into the vehicle through the second outlet 44 to heat the vehicle interior.

[0027] However, in the actual operation process, especially in extremely cold or hot seasons, for example, on a cold winter day, the outdoor environmental temperature is very low, so the temperature of the fresh air drawn in from the outside by the second heat exchange duct 40 is also very low, which is unfavorable to the heating of the heater 41, making it difficult for the air conditioning system to heat up quickly, and the heating speed is slowed down. On the other hand, on a hot summer day, the outdoor environmental temperature is very high, so the temperature of the fresh air drawn in from the outside by the air conditioning system is also very high, which is unfavorable to the heat exchange of the evaporator 11, making it difficult for the air conditioning system to heat up quickly, and the heating speed is slowed down. This increases the time it takes for the interior temperature to reach a comfortable temperature, which increases the waiting time of passengers and affects the riding experience of users. For this purpose, a circulation system is provided, which includes a circulation air inlet 20 communicating with the interior of the automobile, and the circulation air inlet 20 communicates with the first suction end 12 and / or the second suction end 42, respectively, and is used to recover the gas that has been heat exchanged through the first heat exchange duct 10 and / or the second heat exchange duct 40. This allows the suction temperature of the evaporator 11 to be lowered or the suction temperature of the heater 41 to be raised during a certain period immediately after the air conditioning system is started, thereby facilitating a quick transition of the air conditioning system to an operating state.

[0028] In this embodiment, the circulating air inlet 20, the first outlet 14 and the second outlet 44 are all connected to the inside of the automobile, and the circulating air inlet 20 is connected to the first suction end 12 and / or the second suction end 42, respectively. That is, the first suction end 12 is connected to the circulating air inlet 20 and the fresh air inlet 30, respectively, and the second suction end 42 is connected to the circulating air inlet 20 and the fresh air inlet 30, respectively. As a result, the gas flowing out from the first outlet 14 and / or the second outlet 44 exchanges heat inside the vehicle, then flows back into the circulating air inlet 20, and is sent from the circulating air inlet 20 to the first suction end 12 and / or the second suction end 42 again.

[0029] In another embodiment, the circulation system includes a first circulation duct 50, which communicates with the first heat exchange duct 10 to collect the gas that has been heat exchanged through the first heat exchange duct 10, and circulates and sends it out to the first suction end 12. Specifically, the suction port of the first circulation duct 50 communicates with the first blowing end 13, and the blowing port of the first circulation duct 50 communicates with the first suction end 12. As a result, the gas that has been cooled through the evaporator 11 is collected and enters the first circulation duct 50, and circulates from the first circulation duct 50 back to the first suction end 12, lowering the temperature of the gas that enters the first heat exchange duct 10 and assisting the heat exchange of the evaporator 11, and promoting rapid cooling of the air conditioning system.

[0030] In yet another embodiment, the circulation system further includes a second circulation duct 60, which communicates with the second heat exchange duct 40 to collect the gas heat-exchanged through the second heat exchange duct 40 and circulate it to the first suction end 12 or the second suction end 42 for sending out. Specifically, the suction port of the second circulation duct 60 communicates with the second blowing end 43, and the blowing port of the second circulation duct 60 communicates with the first suction end 12 or the second suction end 42. In this way, the gas heated through the heater 41 is collected and enters the second circulation duct 60, and circulates from the second circulation duct 60 back to the second heat exchange duct 40, lowering the temperature of the gas entering the second heat exchange duct 40 and assisting the heating of the heater 41, thus promoting rapid heating of the air conditioning system.

[0031] Compared with recovering the gas flowing out from the first air outlet 14 and / or the second air outlet 44 only by using the recirculating air inlet 20, the first recirculating duct 50 and the second recirculating duct 60 are separately provided to increase the gas recovery efficiency and further increase the heating speed or cooling speed of the air conditioning system. By controlling the opening and closing of the first recirculating duct 50 and the opening and closing of the second recirculating duct 60, the air conditioning system can be adapted to switching between different operating modes or states. In addition, the opening and closing of the recirculating air inlet 20, the fresh air inlet 30, the first air outlet 14 and the second air outlet 44 may be correspondingly adjusted according to switching between different operating modes or states of the air conditioning system.

[0032] In addition, the term "communication" described in this application only indicates the connection relationship between different ducts, and does not indicate the state of communication. Specifically, whether or not the ducts are connected is controlled by the corresponding control switch, or by whether or not each duct is blocked. In addition, the first blowing end 13 described in this embodiment refers to a part of the duct from behind the evaporator 11 to before the first blowing outlet 14, and the first suction end 12 refers to a part of the duct in front of the evaporator 11. The second blowing end 43 refers to a part of the duct from behind the heater 41 to before the second blowing outlet 44, and the second suction end 42 refers to a part of the duct in front of the heater 41. In addition, the second suction end 42 communicating with the circulating air inlet 20 and the fresh air inlet 30 may mean that the second suction end 42 directly communicates with the circulating air inlet 20 and the fresh air inlet 30, that is, the second suction end 42 directly forms the circulating air inlet 20 and the fresh air inlet 30, or the second suction end 42 is indirectly connected to the circulating air inlet 20 and the fresh air inlet 30, for example, the second suction end 42 is connected to the circulating air inlet 20 and the fresh air inlet 30 through a predetermined duct. In this embodiment, the second suction end 42 is connected to the circulating air inlet 20 and the fresh air inlet 30 through the first suction end 12, respectively.

[0033] According to the technical solution of the present application, a first heat exchange duct 10 and a second heat exchange duct 40 are provided, the first heat exchange duct 10 has an evaporator 11 built in, the first heat exchange duct 10 has a first suction end 12 communicating with a fresh air inlet 30 communicating with the outside of the automobile, and a first outlet end 13 communicating with a first outlet 14 communicating with the inside of the automobile. The second heat exchange duct 40 has a heater 41 built in, the second heat exchange duct 40 has a second suction end 42 communicating with the fresh air inlet 30 and / or the first suction end 42, and a second outlet end 43 communicating with a second outlet 44 communicating with the inside of the automobile. By controlling the opening or closing of the fresh air inlet 30, the first air outlet 14, and the second air outlet 44, normal operation of the air conditioning system in the heating mode and the cooling mode and mutual switching between the two modes are realized, thereby ensuring normal operation of the air conditioning system.

[0034] However, in actual driving, especially in extremely cold or hot seasons, the operation of the evaporator 11 and the heater 41 in the air conditioning system is affected, and the operation efficiency of both is reduced. As a result, it becomes difficult to rapidly cool or heat the air conditioning system. It takes longer for the temperature inside the vehicle to reach a comfortable temperature, which increases the waiting time of passengers and affects the riding experience of users. Therefore, a circulation system is provided, which includes a circulation air inlet 20 communicating with the inside of the automobile, the circulation air inlet 20 communicating with the first suction end 12 and / or the second suction end 42, respectively, and the circulation air inlet 20, the first blowing outlet 14 and the second blowing outlet 44 are all communicating with the inside of the vehicle, so that the gas flowing out from the first blowing outlet 14 and / or the second blowing outlet 44 flows into the circulation air inlet 20 again after heat exchange inside the vehicle, and is sent from the circulation air inlet 20 to the first suction end 12 and / or the second suction end 42 again. As a result, the gas cooled through the evaporator 11 is collected and enters the first suction end 12, thereby lowering the temperature of the gas entering the first heat exchange duct 10 and assisting the heat exchange of the evaporator 11, and promoting rapid cooling of the air conditioning system. Alternatively, the gas heated through the heater 41 is collected and enters the second heat exchange duct 40, thereby raising the temperature of the gas entering the second heat exchange duct 40 and assisting the heating of the heater 41, and promoting rapid heating of the air conditioning system. The time required for the interior temperature to reach a comfortable temperature is shortened, the waiting time of passengers is shortened, and the riding experience of users is improved.

[0035] 1, in one embodiment, the air conditioning system has a heating mode, and the heating mode has a first heating state, in the first heating state, the fresh air inlet 30, the second outlet 44 and the second circulation duct 60 are all open, and the circulation air inlet 20, the first outlet 14 and the first circulation duct 50 are all closed, so that the gas outside the vehicle enters the second heat exchange duct 40 from the fresh air inlet 30, and after heat exchange through the second heat exchange duct 40, a part of the gas enters the second circulation duct 60 and continues to circulate to the second suction end 42, and the other part flows into the vehicle interior through the second outlet 44 to heat the vehicle interior. Specifically, the fresh air outside the vehicle enters the second heat exchange duct 40 from the fresh air inlet 30, and after being heated through the heater 41, a part of the gas enters the second circulation duct 60 from the second outlet end 43. One end of the second circulation duct 60 communicates with the second outlet end 43, and the other end communicates with the ventilation duct 70, so that the gas circulates through the second circulation duct 60 to the first suction end 12, flows from the first suction end 12 to the second suction end 42 together with the air at the fresh air inlet 30, and circulates again to the second heat exchange duct 40. This increases the temperature of the gas entering the second suction end 42, and further increases the suction temperature of the second heat exchange duct 40, reducing heat waste, further reducing the power required for the operation of the heater 41, and assisting the heating of the air conditioning system. The other part of the gas is discharged into the vehicle through the second outlet 44 to heat the vehicle interior.

[0036] 2, in one embodiment, the heating mode further has a second heating state, and can be switched from the first heating state to the second heating state, in which the circulating air inlet 20, the fresh air inlet 30, the first air outlet 14 and the second air outlet 44 are all connected, and the first circulation duct 50 and the second circulation duct 60 are all closed, so that after the gas outside the vehicle enters through the fresh air inlet 30, a part of the gas flows into the vehicle through the first air outlet 14, and another part flows into the vehicle after heat exchange through the second heat exchange duct 40, and both parts enter the air conditioning system again through the circulating air inlet 20. Specifically, after the air conditioning system operates for a certain period of time, the circulating air inlet 20 and the first air outlet 14 are opened, and the second circulation duct 60 is closed, to switch from the first heating state to the second heating state. After the gas outside the vehicle enters through the fresh air inlet 30, a part of the gas flows into the second heat exchange duct 40 from the second suction end 42, and after heat exchange through the second heat exchange duct 40, flows into the vehicle interior from the second outlet 44 to heat the gas inside the vehicle. The other part of the gas flows into the first heat exchange duct 10 from the first suction end 12, and after heat exchange through the first heat exchange duct 10, flows into the vehicle interior from the first outlet 14. In this way, the temperature of the gas discharged from the second outlet 44 is adjusted so that the temperature of the gas discharged from the air conditioning system into the vehicle interior is always comfortable for the passengers.

[0037] In another embodiment, the heating mode further has a second heating state, and can be switched from the first heating state to the second heating state, in which the circulating air inlet 20, the fresh air inlet 30 and the second air outlet 44 are all conductive, and the first air outlet 14, the first circulation duct 50 and the second circulation duct 60 are all closed, so that the gas outside the vehicle enters the second heat exchange duct 40 through the fresh air inlet 30, flows into the vehicle after heat exchange, and re-enters the air conditioning system through the circulating air inlet 20. Specifically, after the air conditioning system operates for a period of time, the circulating air inlet 20 is opened and the second circulation duct 60 is closed, and the first heating state is switched to the second heating state. As a result, the gas outside the vehicle enters through the fresh air inlet 30, flows into the second heat exchange duct 40 from the second suction end 42, and is heat exchanged through the second heat exchange duct 40 before flowing into the vehicle through the second outlet 44 to heat the gas inside the vehicle. In addition, the operating power of the heater 41 is adjustable, so that the temperature of the gas discharged from the air conditioning system into the vehicle is controlled so that the gas inside the vehicle is always at a comfortable temperature for the passengers.

[0038] 3, in one embodiment, the air conditioning system further has a cooling mode, and the cooling mode has a first cooling state, in the first cooling state, the circulating air inlet 20, the first outlet 14 and the first circulation duct 50 are all open, and the fresh air inlet 30, the second outlet 44 and the second circulation duct 60 are all closed, so that after the gas is heat exchanged through the first heat exchange duct 10, a part of the gas enters the first circulation duct 50 and continues to circulate to the first suction end 12, and the other part is discharged from the first outlet 14 into the vehicle interior to cool the vehicle interior, and then re-enters the air conditioning system through the circulating air inlet 20. Specifically, the gas enters the first heat exchange duct 10, is cooled through the evaporator 11, and then enters the first circulation duct 50 from the first outlet end 13. Since one end of the first circulation duct 50 is connected to the first outlet end 13 and the other end is connected to the ventilation duct 70, a part of the gas circulates to the first intake end 12 via the first circulation duct 50, and the other part of the gas is discharged from the first outlet 14 into the vehicle interior to cool the gas inside the vehicle, and then circulates again to the first heat exchange duct 10 together with the air at the circulation air inlet 20 and the outlet end of the first circulation duct 50, respectively, thereby lowering the temperature of the gas entering the first intake end 12, and further lowering the intake temperature of the first heat exchange duct 10, reducing energy waste, further reducing the power required for the operation of the evaporator 11, and assisting the cooling of the air conditioning system.

[0039] Referring to FIG. 4, in one embodiment, the cooling mode further has a second cooling state, and can be switched from the first cooling state to the second cooling state. In the second cooling state, the circulating air inlet 20, the first air outlet 14, and the second air outlet 44 are all connected, and the fresh air inlet 30, the first circulation duct 50, and the second circulation duct 60 are all blocked, so that the gas entering the first heat exchange duct 10 flows into the vehicle through the first air outlet 14 and the second air outlet 44, respectively, and re-enters the air conditioning system through the circulating air inlet 20. Specifically, after the air conditioning system operates for a certain period of time, the first air outlet 14 is opened, the first circulation duct 50 is closed, and the first cooling state is switched to the second cooling state. As a result, a part of the gas enters the first heat exchange duct 10, is cooled through the evaporator 11, and then discharged into the vehicle to cool the gas inside the vehicle. The other part of the gas flows into the second heat exchange duct 40 from the second suction end 42, and after being heat exchanged through the second heat exchange duct 40, flows into the vehicle interior from the second outlet 44. This adjusts the temperature of the gas discharged from the first outlet 14 so that the temperature of the gas discharged from the air conditioning system into the vehicle interior is always a comfortable temperature for the passengers.

[0040] In another embodiment, the cooling mode further has a second cooling state, and can be switched from the first cooling state to the second cooling state. In the second cooling state, the circulating air inlet 20 and the first outlet 14 are all connected, and the fresh air inlet 30, the second outlet 44, the first circulation duct 50 and the second circulation duct 60 are all blocked, so that the gas entering the first heat exchange duct 10 flows into the vehicle through the first outlet 14 and re-enters the air conditioning system through the circulating air inlet 20. Specifically, after the air conditioning system operates for a certain period of time, the circulating air inlet 20 is opened, the second circulation duct 60 and the second outlet 44 are closed, and the first cooling state is switched to the second cooling state. As a result, the gas enters the first heat exchange duct 10, is cooled through the evaporator 11, and is then discharged into the vehicle to cool the gas in the vehicle. Furthermore, since the operating power of the evaporator 11 is adjustable, the temperature of the gas discharged from the air conditioning system into the vehicle interior is controlled so that the gas is always at a comfortable temperature for the passengers.

[0041] 1 to 4, in one embodiment, the second suction end 42 of the second heat exchange duct 40 communicates with the first blowing end 13 of the first heat exchange duct 10, and a blower 80 is provided at the first suction end 12, and the gas blown out through the blower 80 passes through the first suction end 12, the first blowing end 13, and the second suction end 42 in sequence. Specifically, the second suction end 42 of the second heat exchange duct 40 communicates with the first blowing end 13 of the first heat exchange duct 10. That is, the second heat exchange duct 40 is located behind the first heat exchange duct 10, and the second suction end 42 communicates with the circulating air inlet 20 and the fresh air inlet 30 through the first heat exchange duct 10. In addition, a blower 80 is provided at the first suction end 12, and the gas blown by the blower 80 passes through the first suction end 12, the first blowing end 13, and the second suction end 42 in that order. That is, one blower 80 is used to simultaneously drive the gas flow in the first heat exchange duct 10 and the second heat exchange duct 40, thereby reducing the power consumption of one blower 80, reducing the number of installation steps, and further reducing the power loss of the entire air conditioning system.

[0042] In another embodiment, a blower 80 may be provided at each of the first suction end 12 of the first heat exchange duct and the second suction end 42 of the second heat exchange duct 40 to drive the flow of gas in the first heat exchange duct 10 and the second heat exchange duct 40, respectively, and to speed up the flow of gas in the air conditioning system.

[0043] Furthermore, in one embodiment, the second heat exchange duct 40 is fitted in the first heat exchange duct 10, and the second air outlet 44 is concentrically arranged in the first air outlet 14. Specifically, since the second heat exchange duct 40 is fitted in the first heat exchange duct 10, the gas that has been heat exchanged through the first heat exchange duct 10 and the gas that has been heat exchanged through the second heat exchange duct 40 are both discharged from the same duct. As a result, the gas in the first heat exchange duct 10 and the gas in the second heat exchange duct 40 are mixed at the same time as the gas is discharged into the vehicle, so that the air conditioning system discharges gas at a uniform temperature.

[0044] In one embodiment, the air conditioning system further includes a ventilation duct 70, one end of which is connected to the circulating air inlet 20 and the other end of which is connected to the first suction end 12, and the outlet of the first circulating duct 50, the outlet of the second circulating duct 60, and the fresh air inlet 30 are all connected to the first suction end 12 and / or the second suction end 42 through the ventilation duct 70, and a blower 80 is provided in the ventilation duct 70. Specifically, the ventilation duct 70 is connected to the circulating air inlet 20 at one end and to the first suction end 12 at the other end, and is connected to the second suction end 42 through the first heat exchange duct 10, so that the circulating air inlet 20 is connected to the first suction end 12 and / or the second suction end 42, respectively. The ventilation duct 70 communicates with the outlet of the first circulation duct 50 and the outlet of the second circulation duct 60, respectively, and is located between the first suction end 12 and the circulating air inlet 20, so that the outlet of the first circulation duct 50 and the outlet of the second circulation duct 60 communicate with the first suction end 12 and the second suction end 42 through the ventilation duct 70. In addition, a fresh air inlet 30 is also formed in the ventilation duct 70 and is located between the first suction end 12 and the circulating air inlet 20, so that the fresh air inlet 30 communicates with the first suction end 12 and the second suction end 42 through the ventilation duct 70, and a blower 80 is provided in the ventilation duct 70.

[0045] Continuing to refer to Figures 1 to 4, in one embodiment, the circulating air inlet 20, the fresh air inlet 30, the first outlet 14, the second outlet 44, the first circulation duct 50 and the second circulation duct 60 are all provided with a switching valve 90, and the multiple switching valves 90 respectively control the opening and closing of the circulating air inlet 20, the fresh air inlet 30, the first outlet 14, the second outlet 44, the first circulation duct 50 and the second circulation duct 60, and are capable of adjusting the suction / blowout ratio of the circulating air inlet 20, the fresh air inlet 30, the first outlet 14, the second outlet 44, the first circulation duct 50 and the second circulation duct 60. Specifically, the recirculating air inlet 20, the fresh air inlet 30, the first outlet 14, the second outlet 44, the first circulation duct 50 and the second circulation duct 60 are all provided with switching valves 90 to control the direction of gas flow and facilitate switching between different modes and / or states of the air conditioning system. In addition, since the switching valves 90 in the circulating air inlet 20, the fresh air inlet 30, the first air outlet 14, the second air outlet 44, the first circulation duct 50 and the second circulation duct 60 are all stepless control valves, by turning the switching valves 90 and adjusting their inclination angles, the opening sizes of the circulating air inlet 20, the fresh air inlet 30, the first air outlet 14, the second air outlet 44, the first circulation duct 50 and the second circulation duct 60 are controlled, and further the suction ratios of the circulating air inlet 20, the fresh air inlet 30, the first air outlet 14, the second air outlet 44, the first circulation duct 50 and the second circulation duct 60 are controlled.

[0046] The present application further proposes an automobile including a car body and an air conditioning system. The specific structure of the air conditioning system is referred to the above embodiments, and the automobile adopts all the technical solutions of all the above embodiments, so that the automobile has at least all the beneficial effects brought by the technical solutions of the above embodiments, and the description is omitted here. Here, the air conditioning system is installed in the car body to adjust the air temperature inside the automobile.

[0047] The above is merely a preferred embodiment of the present application, and does not limit the scope of the patent of the present application. Any equivalent structural transformation made by utilizing the contents of the specification and accompanying drawings of the present application under the concept of the present application, or direct / indirect application to other related technical fields, is also included in the scope of protection of the patent of the present application. [Explanation of symbols]

[0048] 10 First heat exchange duct 11 Evaporator 12 Second suction end 13 First outlet 14 First air outlet 20 Circulating air inlet 30 Fresh air inlet 40 Second heat exchange duct 41 Heater 42 First suction end 43 Second blowing end 44 Second Air Outlet 50 First Circulation Duct 60 Second Circulation Duct 70 Ventilation Duct 80 Blower 90 Switching valve

Claims

1. a first heat exchange duct having an evaporator built therein, a first suction end communicating with a fresh air inlet communicating with the outside of the vehicle, and a first outlet end communicating with a first outlet communicating with the inside of the vehicle; a second heat exchange duct having a heater built therein, a second suction end communicating with at least one of the fresh air inlet and the first suction end, and a second outlet end communicating with a second outlet communicating with the interior of the vehicle; a circulation system including a circulation air inlet communicating with the interior of the automobile, the circulation air inlet being respectively connected to at least one of the first suction end and the second suction end, and recovering gas that has been heat exchanged through at least one of the first heat exchange duct and the second heat exchange duct, and circulating and sending it to at least one of the first suction end and the second suction end; Including air conditioning system.

2. The circulation system further includes a first circulation duct, the first circulation duct communicates with the first heat exchange duct, and recovers the gas that has been heat exchanged through the first heat exchange duct, circulates it, and sends it out to the first suction end; and The circulation system further includes a second circulation duct, and the second circulation duct is in communication with the second heat exchange duct to recover the gas that has been heat exchanged through the second heat exchange duct and circulate it to the first suction end or the second suction end.

2. The air conditioning system according to claim 1.

3. The air conditioning system has a heating mode, and the heating mode has a first heating state. In the first heating state, the fresh air inlet, the second air outlet, and the second circulation duct are all conductive, and the circulation air inlet, the first air outlet, and the first circulation duct are all closed, so that the gas outside the vehicle enters the second heat exchange duct from the fresh air inlet, and after heat exchange through the second heat exchange duct, a part of the gas enters the second circulation duct and continues to circulate to the second suction end, and the other part flows into the vehicle from the second air outlet to heat the vehicle interior.

3. An air conditioning system according to claim 2.

4. The heating mode further has a second heating state, and can be switched from the first heating state to the second heating state. In the second heating state, the circulating air inlet, the fresh air inlet, the first air outlet, and the second air outlet are all conductive, and the first circulation duct and the second circulation duct are all closed, so that after the gas outside the vehicle enters through the fresh air inlet, a part of the gas flows into the vehicle interior through the first air outlet, and another part of the gas flows into the vehicle interior after being heat exchanged through the second heat exchange duct, and both parts of the gas flow into the air conditioning system again through the circulating air inlet; or The heating mode further includes a second heating state, and can be switched from the first heating state to the second heating state. In the second heating state, the circulating air inlet, the fresh air inlet, and the second air outlet are all connected, and the first air outlet, the first circulation duct, and the second circulation duct are all closed, so that the gas outside the vehicle enters the second heat exchange duct from the fresh air inlet, flows into the vehicle after heat exchange, and re-enters the air conditioning system from the circulating air inlet.

4. An air conditioning system according to claim 3.

5. The air conditioning system further has a cooling mode, and the cooling mode has a first cooling state. In the first cooling state, the circulating air inlet, the first air outlet and the first circulation duct are all connected, and the fresh air inlet, the second air outlet and the second circulation duct are all closed, so that after the gas is heat exchanged through the first heat exchange duct, a part of the gas enters the first circulation duct and continues to circulate to the first suction end, and the other part is discharged from the first air outlet into the vehicle interior, cools the vehicle interior, and then re-enters the air conditioning system from the circulating air inlet.

3. An air conditioning system according to claim 2.

6. The cooling mode further has a second cooling state, and can be switched from the first cooling state to the second cooling state. In the second cooling state, the circulating air inlet, the first air outlet, and the second air outlet are all conductive, and the fresh air inlet, the first circulation duct, and the second circulation duct are all closed, so that the gas that has entered the first heat exchange duct flows into the vehicle interior through the first air outlet and the second air outlet, respectively, and re-enters the air conditioning system through the circulating air inlet; or The cooling mode further includes a second cooling state, and can be switched from the first cooling state to the second cooling state. In the second cooling state, the circulating air inlet and the first air outlet are all connected, and the fresh air inlet, the second air outlet, the first circulation duct, and the second circulation duct are all closed, so that the gas entering the first heat exchange duct flows into the vehicle interior through the first air outlet and re-enters the air conditioning system through the circulating air inlet.

6. An air conditioning system according to claim 5.

7. The second suction end of the second heat exchange duct is connected to the first blowing end of the first heat exchange duct, and a blower is provided at the first suction end, and gas blown out via the blower passes through the first suction end, the first blowing end, and the second suction end in this order.

3. An air conditioning system according to claim 2.

8. The air conditioning system further includes a ventilation duct, one end of which is connected to the circulating air inlet and the other end of which is connected to the first suction end, and the outlet of the first circulation duct, the outlet of the second circulation duct, and the fresh air inlet are all connected to at least one of the first suction end and the second suction end via the ventilation duct, and the blower is provided in the ventilation duct.

8. An air conditioning system according to claim 7.

9. The second heat exchange duct is fitted within the first heat exchange duct, and the second air outlet is concentrically disposed within the first air outlet.

8. An air conditioning system according to claim 7.

10. The circulating air inlet, the fresh air inlet, the first blowing outlet, the second blowing outlet, the first circulation duct, and the second circulation duct are all provided with switching valves, and the multiple switching valves are capable of controlling the opening and closing of the circulating air inlet, the fresh air inlet, the first blowing outlet, the second blowing outlet, the first circulation duct, and the second circulation duct, respectively, and adjusting the suction / blowout ratio of the circulating air inlet, the fresh air inlet, the first blowing outlet, the second blowing outlet, the first circulation duct, and the second circulation duct.

3. An air conditioning system according to claim 2.

11. A vehicle body and an air conditioning system according to any one of claims 1 to 10, wherein the air conditioning system is provided in the vehicle body. car.

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