Air conditioning system and automobile

Abstract

The application discloses an air conditioning system and a car, wherein an evaporator is arranged in a first heat exchange air duct of the air conditioning system, the first heat exchange air duct is provided with a first air inlet end and a first air outlet end, the first air inlet end is communicated with a fresh air inlet outside the car, and the first air outlet end is communicated with a first air outlet inside the car. A heater is arranged in a second heat exchange air duct of the air conditioning system, the second heat exchange air duct is provided with a second air inlet end and a second air outlet end, the second air inlet end is communicated with the fresh air inlet and / or the first air inlet end, and the second air outlet end is communicated with a second air outlet inside the car. A circulating system comprises a circulating air inlet communicated with the car, the circulating air inlet is respectively communicated with the first air inlet end and / or the second air inlet end, so as to recycle the gas after heat exchange via the first heat exchange air duct and / or the second heat exchange air duct and to circulate and deliver the gas to the first air inlet end and / or the second air inlet end. The technical scheme can improve the temperature rising or falling rate of the air conditioning system.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and particularly to an air conditioning system and an automobile. Background Technology

[0002] Automotive air conditioning systems generally have three operating modes: cooling, heating, and ventilation. During operation, they need to draw in fresh air from the outside. In cold winters, the outdoor temperature is very low, so the temperature of the fresh air drawn in by the air conditioner is also very low, making it difficult for the air conditioning system to quickly reach its operating state, resulting in a slow heating rate. In hot summers, the outdoor temperature is very high, so the temperature of the fresh air drawn in by the air conditioner is also very high, making it difficult for the air conditioning system to quickly reach its operating state, resulting in a slow cooling rate. This can lead to passengers being in extremely cold or extremely hot conditions for extended periods, negatively impacting the user's riding experience. Summary of the Invention

[0003] The main objective of this invention is to propose an air conditioning system that aims to improve the heating or cooling rate of the air conditioning system.

[0004] To achieve the above objectives, the present invention provides an air conditioning system comprising:

[0005] The first heat exchange duct has a built-in evaporator and a first air inlet and a first air outlet. The first air inlet is connected to a fresh air inlet outside the vehicle, and the first air outlet is connected to a first air outlet inside the vehicle.

[0006] A second heat exchange duct, comprising a built-in heater, and having a second air inlet and a second air outlet, wherein the second air inlet is connected to the fresh air inlet and / or the first air inlet, and the second air outlet is connected to a second air outlet inside the vehicle; and

[0007] The circulation system includes a circulating air inlet connected to the vehicle interior. The circulating air inlet is connected to the first air inlet and / or the second air inlet respectively, so as to recover the gas after heat exchange through the first heat exchange duct and / or the second heat exchange duct, and circulate it to the first air inlet and / or the second air inlet.

[0008] Optionally, the circulation system further includes a first circulation duct, which connects to the first heat exchange duct to recover the gas that has undergone heat exchange via the first heat exchange duct and circulate it to the first air inlet; and / or,

[0009] The circulation system further includes a second circulation duct, which is connected to the second heat exchange duct to recover the gas after heat exchange via the second heat exchange duct and circulate it to the first air inlet or the second air inlet.

[0010] Optionally, the air conditioning system has a heating mode, which has a first heating state. In the first heating state, the fresh air inlet, the second air outlet, and the second circulating air duct are all open, while the circulating air inlet, the first air outlet, and the first circulating air duct are all blocked. This allows outside air to enter the second heat exchange air duct through the fresh air inlet, and after heat exchange in the second heat exchange air duct, a portion enters the second circulating air duct to continue circulating to the second air inlet, while the other portion flows into the vehicle through the second air outlet to raise the temperature inside the vehicle.

[0011] Optionally, the heating mode also has a second heating state, which 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 open, while the first circulating air duct and the second circulating air duct are blocked. This allows outside air to enter through the fresh air inlet, with a portion flowing into the vehicle through the first air outlet and the other portion flowing into the vehicle after heat exchange through the second heat exchange duct, and both re-entering the air conditioning system through the circulating air inlet; or...

[0012] The heating mode also has a second heating state. In the second heating state, the first heating state can be switched to the second heating state. The circulating air inlet, the fresh air inlet and the second air outlet are all open. The first air outlet, the first circulating air duct and the second circulating air duct are all blocked. This allows outside air to enter the second heat exchange air duct through the fresh air inlet, exchange heat and then flow into the vehicle, and then re-enter the air conditioning system through the circulating air inlet.

[0013] Optionally, the air conditioning system also has a cooling mode, which has a first cooling state. In the first cooling state, the circulating air inlet, the first air outlet, and the first circulating air duct are all open, while the fresh air inlet, the second air outlet, and the second circulating air duct are all blocked. This allows the air to exchange heat through the first heat exchange air duct, with a portion entering the first circulating air duct to continue circulating to the first air inlet, and the other portion being discharged into the vehicle through the first air outlet. After cooling the vehicle interior, the air then re-enters the air conditioning system through the circulating air inlet.

[0014] Optionally, the cooling mode further includes a second cooling state, where the first cooling state can be switched 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 open, while the fresh air inlet, the first circulating air duct, and the second circulating air duct are all blocked. This allows the gas entering the first heat exchange air duct to flow into the vehicle through the first air outlet and the second air outlet, and then re-enter the air conditioning system through the circulating air inlet; or...

[0015] The cooling mode also has a second cooling state, in which the first cooling state can be switched to the second cooling state. In the second cooling state, the circulating air inlet and the first air outlet are both open, while the fresh air inlet, the second air outlet, the first circulating air duct and the second circulating air duct are all blocked, so that the gas entering the first heat exchange air duct flows into the vehicle through the first air outlet and re-enters the air conditioning system through the circulating air inlet.

[0016] Optionally, the second air inlet of the second heat exchange duct is connected to the first air outlet of the first heat exchange duct, and a blower is provided at the first air inlet. The gas blown out by the blower passes through the first air inlet, the first air outlet, and the second air inlet in sequence.

[0017] Optionally, 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 air inlet. The air outlet of the first circulating air duct, the air outlet of the second circulating air duct, and the fresh air inlet are all connected to the first air inlet and / or the second air inlet through the ventilation duct. The blower is located inside the ventilation duct.

[0018] Optionally, the second heat exchange duct is sleeved inside the first heat exchange duct, and the second air outlet is annularly disposed inside the first air outlet.

[0019] Optionally, the circulating air inlet, the fresh air inlet, the first air outlet, the second air outlet, the first circulating air duct, and the second circulating air duct are all equipped with switching valves. The multiple switching valves control the opening and closing of the circulating air inlet, the fresh air inlet, the first air outlet, the second air outlet, the first circulating air duct, and the second circulating air duct, respectively, and can adjust the air inlet / outlet ratio of the circulating air inlet, the fresh air inlet, the first air outlet, the second air outlet, the first circulating air duct, and the second circulating air duct.

[0020] The present invention also proposes an automobile, including a vehicle body and an air conditioning system as described above, wherein the air conditioning system is disposed on the vehicle body.

[0021] The technical solution of this invention establishes a first heat exchange duct and a second heat exchange duct. The first heat exchange duct houses an evaporator and has a first air inlet and a first air outlet. The first air inlet connects to a fresh air inlet outside the vehicle, and the first air outlet connects to a first air outlet inside the vehicle. The second heat exchange duct houses a heater and has a second air inlet and a second air outlet. The second air inlet connects to a fresh air inlet and / or the first air inlet, and the second air outlet connects to a second air outlet inside the vehicle. By controlling the opening and closing of the fresh air inlet, the first air outlet, and the second air outlet, the air conditioning system can operate normally in heating and cooling modes, as well as switch between the two modes, ensuring the normal operation of the air conditioning system.

[0022] However, in actual operation, especially during extremely cold or hot seasons, the operation of the evaporator and heater in the air conditioning system is often affected, reducing their efficiency. This makes it difficult for the air conditioning system to cool down or heat up quickly. This increases the time it takes for the interior temperature to reach a comfortable level, extending passenger waiting time and impacting the user's travel experience. Therefore, a circulation system is installed. This system includes a circulating air inlet connected to the interior of the vehicle. The circulating air inlet is connected to a first air intake and / or a second air intake. Since the circulating air inlet, the first air outlet, and the second air outlet are all connected to the interior of the vehicle, the air flowing out of the first air outlet and / or the second air outlet, after being heated by the interior air, flows back into the circulating air inlet and is then transported back to the first air intake and / or the second air intake. This allows for the recovery of gas cooled by the evaporator into the first air inlet, thereby lowering the temperature of the gas entering the first heat exchange duct and assisting the evaporator in heat exchange, promoting rapid cooling of the air conditioning system. Alternatively, it allows for the recovery of gas heated by the heater into the second heat exchange duct, increasing the temperature of the gas entering the second heat exchange duct and assisting the heater in heating, promoting rapid heating of the air conditioning system. This reduces the time required for the interior temperature to reach a comfortable level, reduces passenger waiting time, and improves the user's riding experience. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the air conditioning system in the first heating state in the heating mode of an embodiment of the air conditioning system of the present invention;

[0025] Figure 2 for Figure 1A schematic diagram of the structure of the air conditioning system in the second heating state of the heating mode;

[0026] Figure 3 for Figure 1 A schematic diagram of the air conditioning system in the first cooling state of the cooling mode;

[0027] Figure 4 for Figure 1 A schematic diagram of the structure of the air conditioning system in the second cooling state of the cooling mode.

[0028] Explanation of icon numbers:

[0029] 10 First heat exchange air duct 42 Second air inlet end 11 Evaporator 43 Second air outlet 12 First air inlet end 44 Second air outlet 13 First air outlet end 50 First circulation air duct 14 First air outlet 60 Second circulation air duct 20 Circulating air inlet 70 ventilation ducts 30 Fresh air intake 80 blower 40 Second heat exchange air duct 90 Switching valve 41 heater

[0030] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0032] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0034] This invention proposes an air conditioning system.

[0035] In embodiments of the present invention, such as Figures 1 to 4 As shown, 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, and has a first air inlet 12 and a first air outlet 13. The first air inlet 12 is connected to a fresh air inlet 30 outside the vehicle, and the first air outlet 13 is connected to a first air outlet 14 inside the vehicle. The second heat exchange duct 40 has a heater 41 built in, and has a second air inlet 42 and a second air outlet 43. The second air inlet 42 is connected to the fresh air inlet 30 and / or the first air inlet 42, and the second air outlet 43 is connected to a second air outlet 44 inside the vehicle. The circulation system includes a circulating air inlet 20 connected to the vehicle interior. The circulating air inlet 20 is connected to the first air inlet 12 and / or the second air inlet 42 respectively, and is used to recover the gas after heat exchange through the first heat exchange duct 10 and / or the second heat exchange duct 40, and circulate it to the first air inlet 12 and / or the second air inlet 42.

[0036] Specifically, the air conditioning system is fixed to the car body. The first heat exchange duct 10 is equipped with an evaporator 11. In cooling mode, fresh air formed by filtering outside air through the car's air filtration system enters the first heat exchange duct 10 through the fresh air inlet 30. The air cooled by the first heat exchange duct 10 passes through the first air outlet 13 and is discharged into the car through the first air outlet 14 to cool the car interior. The second heat exchange duct 40 is equipped with a heater 41. The heater 41 heats the air in the second heat exchange duct 40. Therefore, in heating mode, fresh air formed by filtering outside air through the car's air filtration system enters the second heat exchange duct 40 through the fresh air inlet 30. The air heated by the second heat exchange duct 40 passes through the second air outlet 43 and is discharged into the car through the second air outlet 44 to heat the car interior.

[0037] However, in actual operation, especially during extremely cold or hot seasons, such as cold winters when the outdoor temperature is very low, the temperature of the fresh air drawn in from the outside by the second heat exchange duct 40 is also very low, which is not conducive to heating by the heater 41, making it difficult for the air conditioning system to heat up quickly and resulting in a slower heating rate. Conversely, in hot summers when the outdoor temperature is very high, the temperature of the fresh air drawn in from the outside by the air conditioning system is also very high, which is not conducive to heat exchange by the evaporator 11, making it difficult for the air conditioning system to cool down quickly and resulting in a slower cooling rate. This makes it take longer for the interior temperature to reach a comfortable temperature, extending the waiting time for passengers and affecting the user's riding experience. Therefore, a circulation system is set up, which includes a circulating air inlet 20 connected to the interior of the vehicle. The circulating air inlet 20 is connected to the first air inlet 12 and the second air inlet 42, respectively, 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 reduces the air inlet temperature of the evaporator 11 or increases the air inlet temperature of the heater 41 during the initial period after the air conditioning system starts up, thereby promoting the rapid entry of the air conditioning system into working condition.

[0038] In this embodiment, the circulating air inlet 20, the first air outlet 14, and the second air outlet 44 are all connected to the vehicle interior, and the circulating air inlet 20 is connected to the first air inlet 12 and / or the second air inlet 42, respectively. Specifically, the first air inlet 12 is connected to both the circulating air inlet 20 and the fresh air inlet 30, and the second air inlet 42 is connected to both the circulating air inlet 20 and the fresh air inlet 30. This ensures that the air flowing out of the first air outlet 14 and / or the second air outlet 14, after heat exchange within the vehicle interior, flows back into the circulating air inlet 20 and is then transported again from the circulating air inlet 20 to the first air inlet 12 and / or the second air inlet 42.

[0039] In another embodiment, the circulation system includes a first circulation duct 50, which is connected to a first heat exchange duct 10 to recover the gas that has been heated by the first heat exchange duct 10 and circulate it to a first air inlet 12. Specifically, the air inlet of the first circulation duct 50 is connected to a first air outlet 13, and the air outlet of the first circulation duct 50 is connected to the first air inlet 12, thereby recovering the gas cooled by the evaporator 11 and entering the first circulation duct 50, and then circulating it back to the first air inlet 12, thereby reducing the temperature of the gas entering the first heat exchange duct 10 and assisting the evaporator 11 in heat exchange, thus promoting rapid cooling of the air conditioning system.

[0040] In another embodiment, the circulation system further includes a second circulation duct 60, which is connected to a second heat exchange duct 40. This second circulation duct 60 is used to recover the gas that has undergone heat exchange via the second heat exchange duct 40 and circulate it to the first air inlet 12 or the second air inlet 42. Specifically, the air inlet of the second circulation duct 60 is connected to the second air outlet 43, and the air outlet of the second circulation duct 60 is connected to the first air inlet 12 or the second air inlet 12. This allows the gas heated by the heater 41 to enter the second circulation duct 60 and then circulate back to the second heat exchange duct 40, increasing the temperature of the gas entering the second heat exchange duct 40 and assisting the heater 41 in heating, thus promoting rapid heating of the air conditioning system.

[0041] Compared to simply using the recirculating air inlet 20 to recover the gas flowing out of the first air outlet 14 and / or the second air outlet 14, additionally setting up the first recirculating air duct 50 and the second recirculating air duct 60 can accelerate gas recovery efficiency and further accelerate the heating or cooling rate of the air conditioning system. By controlling the opening and closing of the first recirculating air duct 50 and the second recirculating air duct 60, the system can adapt to the switching of different operating modes or states of the air conditioning system. Furthermore, 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 can all be adjusted accordingly based on the switching of different operating modes or states of the air conditioning system.

[0042] It should be noted that the term "connected" in this invention only indicates the connection relationship between different pipes and does not represent their connected state. Whether they are connected is controlled by their corresponding control switches or whether each air duct is blocked. Furthermore, in this embodiment, the first air outlet 13 represents the section of air duct from the location of the evaporator 11 to the first air outlet 14; the first air inlet 12 represents the section of air duct before the location of the evaporator 11. The second air outlet 43 represents the section of air duct from the location of the heater 41 to the second air outlet 44; the second air inlet 42 represents the section of air duct before the location of the heater 41. The fact that the second air inlet 42 is connected to the circulating air inlet 20 and the fresh air inlet 30 respectively means that the second air inlet 42 is directly connected to the circulating air inlet 20 and the fresh air inlet 30, that is, the circulating air inlet 20 and the fresh air inlet 30 are directly opened at the second air inlet 42; or, the second air inlet 42 is indirectly connected to the circulating air inlet 20 and the fresh air inlet 30, such as the second air inlet 43 being connected to the circulating air inlet 20 and the fresh air inlet 30 respectively through a preset air duct. In this embodiment, the second air inlet 43 is connected to the circulating air inlet 20 and the fresh air inlet 30 respectively through the first air inlet 13.

[0043] The technical solution of this invention involves setting up a first heat exchange duct 10 and a second heat exchange duct 40. The first heat exchange duct 10 houses an evaporator 11 and has a first air inlet 12 and a first air outlet 13. The first air inlet 12 connects to a fresh air inlet 30 outside the vehicle, and the first air outlet 13 connects to a first air outlet 14 inside the vehicle. The second heat exchange duct 40 houses a heater 41 and has a second air inlet 42 and a second air outlet 43. The second air inlet 42 connects to the fresh air inlet 30 and / or the first air inlet 42, and the second air outlet 43 connects to a second air outlet 44 inside the vehicle. By controlling the opening and closing of the fresh air inlet 30, the first air outlet 14, and the second air outlet 44, the air conditioning system can operate normally in heating and cooling modes, as well as switch between the two modes, ensuring the normal operation of the air conditioning system.

[0044] However, in actual operation, especially during extremely cold or hot seasons, the operation of the evaporator 11 and heater 41 in the air conditioning system is often affected, reducing their efficiency. This makes it difficult for the air conditioning system to cool down or heat up quickly. This increases the time it takes for the interior temperature to reach a comfortable level, extending passenger waiting time and affecting the user's travel experience. Therefore, a circulation system is set up. This circulation system includes a circulating air inlet 20 connected to the interior of the vehicle. The circulating air inlet 20 is connected to the first air inlet 12 and / or the second air inlet 42. Since the circulating air inlet 20, the first air outlet 14, and the second air outlet 44 are all connected to the interior of the vehicle, the air flowing out of the first air outlet 14 and / or the second air outlet 14, after exchanging heat with the interior, flows back into the circulating air inlet 20 and is then transported back to the first air inlet 12 and / or the second air inlet 42. This allows the gas cooled by the evaporator 11 to be recycled into the first air inlet 12, thereby reducing the temperature of the gas entering the first heat exchange duct 10 and assisting the evaporator 11 in heat exchange, promoting rapid cooling of the air conditioning system; or it allows the gas heated by the heater 41 to be recycled into the second heat exchange duct 40, increasing the temperature of the gas entering the second heat exchange duct 40 and assisting the heater 41 in heating, promoting rapid heating of the air conditioning system. This reduces the time required for the interior temperature to reach a comfortable level, reduces passenger waiting time, and improves the user's riding experience.

[0045] Reference Figure 1In one embodiment, the air conditioning system has a heating mode, which has a first heating state. In the first heating state, the fresh air inlet 30, the second air outlet 44, and the second circulating air duct 60 are all open, while the circulating air inlet 20, the first air outlet 14, and the first circulating air duct 50 are all blocked. This allows outside air to enter the second heat exchange air duct 40 through the fresh air inlet 30. After heat exchange in the second heat exchange air duct 40, a portion of the air enters the second circulating air duct 60 and continues to circulate to the second air inlet 42, while the other portion flows into the vehicle through the second air outlet 44 to heat the vehicle interior. Specifically, fresh air from outside the vehicle enters the second heat exchange duct 40 through the fresh air inlet 30. After being heated by the heater 41, a portion of the air enters the second circulation duct 60 through the second air outlet 43. One end of the second circulation duct 60 is connected to the second air outlet 43, and the other end is connected to the ventilation duct 70. This allows the air to circulate through the second circulation duct 60 to the first air inlet 12, where it flows together with the air from the fresh air inlet 30 from the first air inlet 12 to the second air inlet 42, thus recirculating back into the second heat exchange duct 40. This increases the temperature of the air entering the second air inlet 42, thereby raising the intake temperature of the second heat exchange duct 40, reducing heat waste, and thus reducing the power required for the heater 41 to operate, while also assisting the air conditioning system in heating up. The remaining portion of the air is discharged into the vehicle through the second air outlet 44 to warm the interior.

[0046] Reference Figure 2 In one embodiment, the heating mode also has a second heating state, and the first heating state can be switched to the second heating state. In the second heating state, the circulating air inlet 20, the fresh air inlet 30, the first air outlet 14 and the second air outlet 44 are all open, and the first circulating air duct 50 and the second circulating air duct 60 are both blocked. This allows the outside air to enter through the fresh air inlet 30, and a portion of the air flows into the vehicle through the first air outlet 14, while the other portion flows into the vehicle after heat exchange through the second heat exchange air duct 40, and then enters the air conditioning system again through the circulating air inlet 20. Specifically, after the air conditioning system has been working for a period of time, the recirculating air inlet 20 and the first air outlet 14 are opened, and the second recirculating air duct 60 is closed, switching the first heating state to the second heating state. This allows outside air to enter through the fresh air inlet 30. Part of the air flows from the second air inlet 42 into the second heat exchange air duct 40, and after heat exchange in the second heat exchange air duct 40, it flows into the vehicle through the second air outlet 44, thereby raising the temperature of the air inside the vehicle. Another part of the air flows from the first air inlet 12 into the first heat exchange air duct 10, and after heat exchange in the first heat exchange air duct 10, it flows into the vehicle through the first air outlet 14, which is used to regulate the temperature of the air flowing out of the second air outlet 44, so that the temperature of the air discharged into the vehicle by the air conditioning system is always at a comfortable temperature for the passengers.

[0047] In another embodiment, the heating mode also has a second heating state. In the second heating state, the first heating state can be switched to the second heating state. The circulating air inlet 20, the fresh air inlet 30 and the second air outlet 44 are all open. The first air outlet 14, the first circulating air duct 50 and the second circulating air duct 60 are all blocked. This allows the outside air to enter the second heat exchange air duct 40 through the fresh air inlet 30, exchange heat and then flow into the vehicle. The air then re-enters the air conditioning system through the circulating air inlet 20. Specifically, after the air conditioning system has been working for a period of time, the recirculating air inlet 20 is opened and the second recirculating air duct 60 is closed, switching the first heating state to the second heating state. This allows outside air to enter through the fresh air inlet 30, flow into the second heat exchange air duct 40 through the second air inlet 42, and after heat exchange through the second heat exchange air duct 40, flow into the vehicle through the second air outlet 44, thereby raising the temperature of the air inside the vehicle. The operating power of the heater 41 is adjustable, thereby controlling the temperature of the air discharged into the vehicle by the air conditioning system, so that the air entering the vehicle is always at a suitable temperature for passengers.

[0048] Reference Figure 3 In one embodiment, the air conditioning system also has a cooling mode, which has a first cooling state. In the first cooling state, the circulating air inlet 20, the first air outlet 14 and the first circulating air duct 50 are all open, while the fresh air inlet 30, the second air outlet 44 and the second circulating air duct 60 are all blocked. This allows the air to exchange heat through the first heat exchange air duct 10, and then part of it enters the first circulating air duct 50 to continue circulating to the first air inlet 12. The other part is discharged into the vehicle through the first air outlet 14 and, after cooling the vehicle interior, it re-enters the air conditioning system through the circulating air inlet 20. Specifically, the gas enters the first heat exchange duct 10, is cooled by the evaporator 11, and then enters the first circulation duct 50 from the first air outlet 13. One end of the first circulation duct 50 is connected to the first air outlet 13, and the other end is connected to the ventilation duct 70. This allows a portion of the gas to circulate through the first circulation duct 50 to the first air inlet 12, while another portion of the gas is discharged into the vehicle from the first air outlet 14 to cool the air inside the vehicle. The gas is also recirculated from the circulation air inlet 20 and the air at the air outlet of the first circulation duct 50 back to the first heat exchange duct 10, which lowers the temperature of the gas entering the first air inlet 12, thereby reducing the air inlet temperature of the first heat exchange duct 10, reducing energy waste, reducing the power required for the evaporator 11 to operate, and assisting the air conditioning system in cooling down.

[0049] Reference Figure 4In one embodiment, the cooling mode also has a second cooling state. The first cooling state can be switched 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 open, while the fresh air inlet 30, the first circulating air duct 50 and the second circulating air duct 60 are all blocked. This allows the gas entering the first heat exchange air duct 10 to flow into the vehicle through the first air outlet 14 and the second air outlet 44, and then re-enter the air conditioning system through the circulating air inlet 20. Specifically, after the air conditioning system has been working for a period of time, the first air outlet 14 is opened and the first circulating air duct 50 is closed, switching the first cooling state to the second cooling state. This allows some gas to enter the first heat exchange air duct 10, be cooled by the evaporator 11, and then be discharged into the vehicle, thereby cooling the air inside the vehicle. Another part of the gas flows into the second heat exchange air duct 40 from the second air inlet 42, and after heat exchange in the second heat exchange air duct 40, it flows into the vehicle from the second air outlet 44. This is used to regulate the temperature of the gas flowing out of the first air outlet 14, so that the temperature of the gas discharged into the vehicle by the air conditioning system is always at a suitable temperature for passengers.

[0050] In another embodiment, the cooling mode also has a second cooling state, which 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 air outlet 14 are both open, while the fresh air inlet 30, the second air outlet 44, the first circulating air duct 50, and the second circulating air duct 60 are all blocked. This allows the gas entering the first heat exchange air duct 10 to flow into the vehicle through the first air outlet 14 and then re-enter the air conditioning system through the circulating air inlet 20. Specifically, after the air conditioning system has been operating for a period of time, the circulating air inlet 20 is opened and the second circulating air duct 60 and the second air outlet 44 are closed, switching the first cooling state to the second cooling state. This allows the gas to enter the first heat exchange air duct 10, be cooled by the evaporator 11, and then be discharged into the vehicle, thereby cooling the gas inside the vehicle. The operating power of the evaporator 11 is adjustable, thereby controlling the temperature of the gas discharged into the vehicle by the air conditioning system, ensuring that the gas entering the vehicle is always at a suitable temperature for the passengers.

[0051] Combined with reference Figures 1 to 4In one embodiment, the second air inlet 42 of the second heat exchange duct 40 is connected to the first air outlet 13 of the first heat exchange duct 10. A blower 80 is provided at the first air inlet 12, and the gas blown out by the blower 80 passes through the first air inlet 12, the first air outlet 13, and the second air inlet 42 in sequence. Specifically, the second air inlet 42 of the second heat exchange duct 40 is connected to the first air outlet 13 of the first heat exchange duct 10, that is, the second heat exchange duct 40 is located after the first heat exchange duct 10, and the second air inlet 42 is connected to the circulating air inlet 20 and the fresh air inlet 30 through the first heat exchange duct 10. Furthermore, a blower 80 is provided at the first air inlet 12. The gas blown out by the blower 80 passes through the first air inlet 12, the first air outlet 13, and the second air inlet 42 in sequence. The gas flow in the first heat exchange duct 10 and the second heat exchange duct 40 is driven by one blower 80, thereby saving the consumption of one blower 80 and reducing the installation process, thereby reducing the overall power loss of the air conditioning system.

[0052] In another embodiment, blowers 80 can be provided at both the first air inlet 12 of the first heat exchange duct 10 and the second air inlet 42 of the second heat exchange duct 40, thereby driving the gas flow in the first heat exchange duct 10 and the second heat exchange duct 40 respectively, and accelerating the gas flow in the air conditioning system.

[0053] Furthermore, in one embodiment, the second heat exchange duct 40 is fitted inside the first heat exchange duct 10, and the second air outlet 44 is arranged around the first air outlet 14. Specifically, the second heat exchange duct 40 is fitted inside the first heat exchange duct 10, so that the gas after heat exchange through the first heat exchange duct 10 and the gas after heat exchange through the second heat exchange duct 40 are discharged from the same pipe, so that 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 with a uniform temperature.

[0054] In one embodiment, the air conditioning system further includes a ventilation duct 70, one end of which is connected to a circulating air inlet 20, and the other end of which is connected to a first air inlet 12. The air outlets of the first circulating air duct 50, the second circulating air duct 60, and the fresh air inlet 30 are all connected to the first air inlet 12 and / or the second air inlet 42 via the ventilation duct 70. A blower 80 is disposed within the ventilation duct 70. Specifically, one end of the ventilation duct 70 is connected to the circulating air inlet 20, and the other end is connected to the first air inlet 12. It is also connected to the second air inlet 42 via a first heat exchange air duct 10, thereby ensuring that the circulating air inlet 20 is connected to both the first air inlet 12 and / or the second air inlet 42. The ventilation duct 70 connects to the air outlets of the first circulating air duct 50 and the second circulating air duct 60, and is located between the first air inlet 12 and the circulating air inlet 20, so that the air outlets of the first circulating air duct 50 and the second circulating air duct 60 are connected to the first air inlet 12 and the second air inlet 42 through the ventilation duct 70. A fresh air inlet 30 is also located in the ventilation duct 70, between the first air inlet 12 and the circulating air inlet 20, so that the fresh air inlet 30 is connected to the first air inlet 12 and the second air inlet 42 through the ventilation duct 70. The blower 80 is located within the ventilation duct 70.

[0055] Refer again Figures 1 to 4 In one embodiment, the circulating air inlet 20, the fresh air inlet 30, the first air outlet 14, the second air outlet 44, the first circulating air duct 50, and the second circulating air duct 60 are all equipped with switching valves 90. The multiple switching valves 90 control the opening and closing of the circulating air inlet 20, the fresh air inlet 30, the first air outlet 14, the second air outlet 44, the first circulating air duct 50, and the second circulating air duct 60 respectively, and can adjust the air inlet / outlet ratio of the circulating air inlet 20, the fresh air inlet 30, the first air outlet 14, the second air outlet 44, the first circulating air duct 50, and the second circulating air duct 60. Specifically, the circulating air inlet 20, fresh air inlet 30, first air outlet 14, second air outlet 44, first circulating air duct 50, and second circulating air duct 60 are all equipped with switching valves 90 to control the direction of air flow, facilitating the switching of the air conditioning system in different modes and / or states. Since the switching valves 90 at the circulating air inlet 20, fresh air inlet 30, first air outlet 14, second air outlet 44, first circulating air duct 50, and second circulating air duct 60 are all stepless control valves, the opening size of the circulating air inlet 20, fresh air inlet 30, first air outlet 14, second air outlet 44, first circulating air duct 50, and second circulating air duct 60 can be controlled by rotating the tilt angle of the switching valves 90, thereby controlling the air intake ratio of the circulating air inlet 20, fresh air inlet 30, first air outlet 14, second air outlet 44, first circulating air duct 50, and second circulating air duct 60.

[0056] The present invention also proposes an automobile, which includes a vehicle body and an air conditioning system. The specific structure of the air conditioning system is as described in the above embodiments. Since this automobile adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The air conditioning system is located on the vehicle body to regulate the air temperature inside the automobile.

[0057] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An air conditioning system, characterized in that, include: The first heat exchange duct has a built-in evaporator and a first air inlet and a first air outlet. The first air inlet is connected to the fresh air inlet outside the vehicle, and the first air outlet is connected to the first air outlet inside the vehicle. A second heat exchange duct, comprising a built-in heater, and having a second air inlet and a second air outlet, wherein the second air inlet is connected to the fresh air inlet and / or the first air inlet, and the second air outlet is connected to a second air outlet inside the vehicle; and The circulation system includes a circulating air inlet connected to the vehicle interior, the circulating air inlet being connected to the first air inlet and / or the second air inlet respectively, to recover the gas after heat exchange via the first heat exchange duct and / or the second heat exchange duct, and to circulate and transport it to the first air inlet and / or the second air inlet. The circulation system further includes a first circulation duct, which is connected to the first heat exchange duct to recover the gas after heat exchange through the first heat exchange duct and circulate it to the first air inlet. The circulation system further includes a second circulation duct, which is connected to the second heat exchange duct to recover the gas after heat exchange via the second heat exchange duct and circulate it to the first air inlet or the second air inlet. The air conditioning system has a heating mode, which has a first heating state. In the first heating state, the fresh air inlet, the second air outlet, and the second circulating air duct are all open, while the circulating air inlet, the first air outlet, and the first circulating air duct are all blocked. This allows outside air to enter the second heat exchange air duct through the fresh air inlet, and after heat exchange in the second heat exchange air duct, a portion enters the second circulating air duct to continue circulating to the second air inlet, while the other portion flows into the vehicle through the second air outlet to raise the temperature inside the vehicle. The heating mode also has a second heating state, in which the first heating state is first run for a preset time after the air conditioning system is started, and the second heating state is switched after the air conditioning system runs in the first heating state for a preset time. In the second heating state, the circulating air inlet, the fresh air inlet, the first air outlet, and the second air outlet are all open, while the first circulating air duct and the second circulating air duct are blocked. This allows outside air to enter through the fresh air inlet, with a portion flowing into the vehicle through the first air outlet and the remaining portion flowing into the vehicle after heat exchange through the second heat exchange duct. Both then re-enter the air conditioning system through the circulating air inlet; or... In the second heating state, the circulating air inlet, the fresh air inlet, and the second air outlet are all open, while the first air outlet, the first circulating air duct, and the second circulating air duct are all blocked. This allows outside air to enter the second heat exchange air duct through the fresh air inlet, exchange heat, and then flow into the vehicle, before re-entering the air conditioning system through the circulating air inlet.

2. The air conditioning system as described in claim 1, characterized in that, The air conditioning system also has a cooling mode, which has a first cooling state. In the first cooling state, the circulating air inlet, the first air outlet, and the first circulating air duct are all open, while the fresh air inlet, the second air outlet, and the second circulating air duct are all blocked. This allows the air to exchange heat through the first heat exchange air duct, with a portion entering the first circulating air duct to continue circulating to the first air inlet, and the other portion being discharged into the vehicle through the first air outlet. After cooling the vehicle interior, the air then re-enters the air conditioning system through the circulating air inlet.

3. The air conditioning system as described in claim 2, characterized in that, The cooling mode also has a second cooling state, in which the first cooling state is first run within a preset time after the air conditioning system is started, and the second cooling state is switched after the air conditioning system runs in the first cooling state for a preset time. In the second cooling state, the circulating air inlet, the first air outlet, and the second air outlet are all open, while the fresh air inlet, the first circulating air duct, and the second circulating air duct are all blocked. This allows the air entering the first heat exchange air duct to flow into the vehicle through the first air outlet and the second air outlet, and then re-enter the air conditioning system through the circulating air inlet; or, In the second cooling state, both the circulating air inlet and the first air outlet are open, while the fresh air inlet, the second air outlet, the first circulating air duct, and the second circulating air duct are blocked, so that the gas entering the first heat exchange air duct flows into the vehicle through the first air outlet and re-enters the air conditioning system through the circulating air inlet.

4. The air conditioning system as described in claim 1, characterized in that, The second air inlet of the second heat exchange air duct is connected to the first air outlet of the first heat exchange air duct. A blower is provided at the first air inlet. The gas blown out by the blower passes through the first air inlet, the first air outlet and the second air inlet in sequence.

5. The air conditioning system as described in claim 4, characterized in that, The air conditioning system also 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 air inlet. The air outlet of the first circulating air duct, the air outlet of the second circulating air duct, and the fresh air inlet are all connected to the first air inlet and / or the second air inlet through the ventilation duct. The blower is located inside the ventilation duct.

6. The air conditioning system as described in claim 4, characterized in that, The second heat exchange duct is fitted inside the first heat exchange duct, and the second air outlet is arranged around the first air outlet.

7. The air conditioning system as described in claim 1, characterized in that, The circulating air inlet, the fresh air inlet, the first air outlet, the second air outlet, the first circulating air duct, and the second circulating air duct are all equipped with switching valves. The multiple switching valves control the opening and closing of the circulating air inlet, the fresh air inlet, the first air outlet, the second air outlet, the first circulating air duct, and the second circulating air duct, respectively, and can adjust the air inlet / outlet ratio of the circulating air inlet, the fresh air inlet, the first air outlet, the second air outlet, the first circulating air duct, and the second circulating air duct.

8. A car, characterized in that, It includes a vehicle body and an air conditioning system as described in any one of claims 1 to 7, wherein the air conditioning system is disposed on the vehicle body.

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