Double-layer flow air conditioner structure and vehicle

Abstract

The utility model belongs to the technical field of vehicle air conditioners, and particularly relates to a double-layer-flow air conditioner structure and a vehicle, and the double-layer-flow air conditioner structure comprises an air blower, a heating assembly and an air conditioner box with an internal space; the air blower and the heating assembly are both installed in the inner space. The air conditioning box is further provided with an inner circulation air inlet duct and an outer circulation air inlet duct which communicate with the first side of the inner space, and an inner circulation air outlet duct and an outer circulation air outlet duct which communicate with the second side of the inner space. The air blower is used for driving internal air entering the internal circulation air inlet duct to pass through the heating assembly and then to be output from the internal circulation air outlet duct, and is used for driving external air entering the external circulation air inlet duct to pass through the heating assembly and then to be output from the external circulation air outlet duct. The double-layer flow air conditioner structure is compact in structure, simple in structure and low in manufacturing cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle air conditioners, and particularly relates to a double-flow air conditioner structure and a vehicle. Background Art

[0002] At present, when the vehicle air conditioner is in the internal circulation mode, it absorbs the internal gas in the passenger compartment into the air conditioning cycle; when the vehicle air conditioner is in the external circulation mode, it absorbs the external gas outside the vehicle into the air conditioning cycle. In the prior art, an independent internal circulation and external circulation system is integrated in the vehicle air conditioner, and the internal circulation air duct and the external circulation air duct operate independently. Thus, the vehicle air conditioner has problems such as complex structure, high manufacturing cost, and large occupied space. Summary of the Utility Model

[0003] In view of the technical problems such as complex structure in the existing air conditioner box, the utility model provides a double-flow air conditioner structure and a vehicle.

[0004] To solve the above problems, the first embodiment of the utility model provides a double-flow air conditioner structure, which includes a blower, a heating component, and an air conditioner box with an internal space; the blower and the heating component are both installed in the internal space;

[0005] The air conditioner box is further provided with an internal circulation air inlet duct and an external circulation air inlet duct communicated with the first side of the internal space, and an internal circulation air outlet duct and an external circulation air outlet duct communicated with the second side of the internal space; the blower is used for driving the internal gas entering the internal circulation air inlet duct to output from the internal circulation air outlet duct after passing through the heating component, and for driving the external gas entering the external circulation air inlet duct to output from the external circulation air outlet duct after passing through the heating component.

[0006] Optionally, the internal space includes a first space and a second space arranged at intervals, and the air conditioner box is further provided with a first air duct and a second air duct, and both the first air duct and the second air duct are communicated between the first space and the second space; both the internal circulation air duct and the external circulation air duct are communicated with the first space, and both the internal circulation air outlet duct and the external circulation air outlet duct are communicated with the second space;

[0007] The heating component includes a dehumidifier installed in the first space and a heat exchanger installed in the second space; the blower is installed in the first space, and the blower is used for driving the internal gas entering the internal circulation air inlet duct to output from the internal circulation air outlet duct after passing through the dehumidifier, the second air duct, and the heat exchanger in sequence, and for driving the external gas entering the external circulation air inlet duct to output from the external circulation air outlet duct after passing through the dehumidifier, the first air duct, and the heat exchanger in sequence.

[0008] Optionally, the air conditioning box includes an air inlet box, a blower box, and an air outlet box. The internal circulation air inlet duct and the external circulation air inlet duct are both arranged on the air inlet box. The first space is arranged on the blower box. The second space, the internal circulation air outlet duct, and the external circulation air outlet duct are all arranged on the air outlet box. The first air duct and the second air duct are arranged between the blower box and the air outlet box.

[0009] Optionally, the heat exchanger is provided with a first heat exchange flow channel for heat exchange with the gas flowing through the heat exchanger, and the dehumidifier is provided with a second heat exchange flow channel communicating with the first heat exchange flow channel and for heat exchange with the gas flowing through the dehumidifier.

[0010] Optionally, the internal circulation air outlet duct includes a front footwell air outlet duct communicating with the second space. The dual-zone air conditioning structure further includes a front footwell air damper installed on the front footwell air outlet duct, and the front footwell air damper is used to control the on-off between the front footwell air outlet duct and the second space.

[0011] Optionally, the internal circulation air outlet duct further includes a rear footwell air outlet duct. The dual-zone air conditioning structure further includes a rear footwell air damper installed on the rear footwell air outlet duct, and the rear footwell air damper is used to control the on-off between the rear footwell air outlet duct and the second space.

[0012] Optionally, the heat exchanger includes a first heat exchanger and a second heat exchanger arranged at intervals. The front footwell air outlet duct includes a left front footwell air outlet duct and a right front footwell air outlet duct. The rear footwell air outlet duct includes a left rear footwell air outlet duct and a right rear footwell air outlet duct.

[0013] The first air duct communicates with the left front footwell air outlet duct and the left rear footwell air outlet duct through the first heat exchanger, and the second air duct communicates with the right front footwell air outlet duct and the right rear footwell air outlet duct through the second heat exchanger.

[0014] Optionally, the air inlet box is further provided with a mixing chamber. The external circulation air inlet duct and the internal circulation air inlet duct both communicate with the first space through the mixing chamber.

[0015] The dual-zone air conditioning structure further includes an air intake damper installed in the mixing chamber, and the air intake damper is used to control the on-off between the mixing chamber and the first space.

[0016] Optionally, the external circulation air outlet duct includes a face air outlet duct and a defrost air outlet duct. The dual-zone air conditioning structure further includes a face air damper installed in the face air outlet duct and a defrost air damper installed in the defrost air outlet duct. The face air damper is used to control the opening and closing of the face air outlet duct, and the defrost air damper is used to control the opening and closing of the defrost air outlet duct.

[0017] Another embodiment of the present utility model further provides a vehicle, including the above double-flow air-conditioning structure.

[0018] In the present utility model, an internal circulation air inlet duct and an external circulation air inlet duct communicating with the first side of the internal space, and an internal circulation air outlet duct and an external circulation air outlet duct communicating with the second side of the internal space are further provided on the air-conditioning box; the blower is used to drive the internal gas entering the internal circulation air inlet duct to output from the internal circulation air outlet duct after passing through the heating component, and to drive the external gas entering the external circulation air inlet duct to output from the external circulation air outlet duct after passing through the heating component. During the rotation of the blower, the blower can suck the gas in the passenger compartment from the internal circulation air inlet duct, and the gas blown out by the blower is heated by the heating component and then blown out through the internal circulation air outlet duct; the blower can also suck the external gas from the external circulation air inlet duct, and the gas blown out by the blower is heated by the heating component and then blown out through the external circulation air outlet duct; for the parts of the internal circulation air outlet duct and the external circulation air outlet duct that are input to the blower, the blower rotates the external gas and the internal gas by a certain angle, so that the internal gas is output through the internal circulation air outlet duct and the external gas is output through the external circulation air outlet duct. In the present utility model, by using the centrifugal action of the blower on the internal gas and the external gas, the internal gas is output through the internal circulation air outlet duct, and the external gas is output through the external circulation air outlet duct, without setting too many valves and too many channels inside the air-conditioning box, improving the compactness of the double-flow air-conditioning structure, and having a simple structure, low manufacturing cost and small occupied space. In addition, the double-flow air-conditioning structure has an internal circulation mode and an external circulation mode, and can select the internal circulation mode or the external circulation mode according to the different temperatures of the internal gas and the external gas, improving the efficiency of the air conditioner and reducing the energy consumption of the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0020] Figure 1 is a cross-sectional view of a double-flow air-conditioning structure provided by an embodiment of the present utility model;

[0021] Figure 2 is a cross-sectional view of another perspective of a double-flow air-conditioning structure provided by an embodiment of the present utility model;

[0022] Figure 3 is a front view of an air inlet box of a double-flow air-conditioning structure provided by an embodiment of the present utility model;

[0023] Figure 4 is a rear view of an air inlet box of a double-flow air-conditioning structure provided by an embodiment of the present utility model;

[0024] Figure 5 Cross-sectional view of the blower box of the double-flow air-conditioning structure provided by an embodiment of the present utility model;

[0025] Figure 6 Schematic diagram of the gas flow direction of the double-flow air-conditioning structure provided by an embodiment of the present utility model;

[0026] Figure 7 Schematic diagram of the gas flow direction of the double-flow air-conditioning structure provided by an embodiment of the present utility model.

[0027] The reference numerals in the specification are as follows:

[0028] 1, air-conditioning box; 11, internal circulation air outlet duct; 111, front foot blowing air outlet duct; 112, rear foot blowing air outlet duct; 12, external circulation air outlet duct; 121, face blowing air outlet duct; 122, defrosting air outlet duct; 13, internal space; 14, internal circulation air inlet duct; 15, external circulation air inlet duct; 16, first air duct; 17, second air duct; 18, mixing chamber; 101, air inlet box; 102, blower box; 103, air outlet box; 2, blower; 3, heating component; 31, dehumidifier; 32, heat exchanger; 321, first heat exchanger; 322, second heat exchanger; 4, front foot blowing air damper; 5, rear foot blowing air damper; 6, face blowing air damper; 7, defrosting air damper; 8, intake air damper. Detailed implementation manners

[0029] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model clearer, the following further describes the utility model in detail with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0030] It should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "middle", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model.

[0031] As Figures 1 to 3 shown, a double-flow air-conditioning structure provided by the first embodiment of the present utility model includes a blower 2, a heating component 3, and an air-conditioning box 1 provided with an internal space 13; the blower 2 and the heating component 3 are both installed in the internal space 13; it can be understood that the blower 2 includes but is not limited to a centrifugal fan, etc., and the heating component 3 includes but is not limited to a heat exchanger 32, etc.

[0032] An internal circulation air inlet duct 14 and an external circulation air inlet duct 15 are further provided on the air conditioner box 1 and are communicated with the first side of the internal space 13, and an internal circulation air outlet duct 11 and an external circulation air outlet duct 12 are communicated with the second side of the internal space 13; the blower 2 is used for driving the internal gas entering the internal circulation air inlet duct 14 to output from the internal circulation air outlet duct 11 after passing through the heating assembly 3, and for driving the external gas entering the external circulation air inlet duct 15 to output from the external circulation air outlet duct 12 after passing through the heating assembly 3. It can be understood that the opening of the internal circulation air inlet duct 14 is communicated with the passenger compartment, and the external circulation air inlet duct 15 is communicated with the external environment.

[0033] In the present utility model, an internal circulation air inlet duct 14 and an external circulation air inlet duct 15 are further provided on the air conditioner box 1 and are communicated with the first side of the internal space 13, and an internal circulation air outlet duct 11 and an external circulation air outlet duct 12 are communicated with the second side of the internal space 13; the blower 2 is used for driving the internal gas entering the internal circulation air inlet duct 14 to output from the internal circulation air outlet duct 11 after passing through the heating assembly 3, and for driving the external gas entering the external circulation air inlet duct 15 to output from the external circulation air outlet duct 12 after passing through the heating assembly 3. During the rotation of the blower 2, the blower 2 can suck the gas in the passenger compartment from the internal circulation air inlet duct 14, and the gas blown out by the blower 2 is heated by the heating assembly 3 and then blown out through the internal circulation air outlet duct 11; the blower 2 can also suck the external gas from the external circulation air inlet duct 15, and the gas blown out by the blower 2 is heated by the heating assembly 3 and then blown out through the external circulation air outlet duct 12; for the parts of the internal circulation air outlet duct 11 and the external circulation air outlet duct 12 that are input into the blower 2, the blower 2 rotates the external gas and the internal gas by a certain angle, so that the internal gas is output through the internal circulation air outlet duct 11 and the external gas is output through the external circulation air outlet duct 12. In the present utility model, by using the centrifugal action of the blower 2 on the internal gas and the external gas, the internal gas is output through the internal circulation air outlet duct 11, and the external gas is output through the external circulation air outlet duct 12, without arranging too many valves and too many channels inside the air conditioner box 1, improving the compactness of the double-layer flow air conditioning structure, and having a simple structure, low manufacturing cost and small occupied space. In addition, the double-layer flow air conditioning structure has an internal circulation mode and an external circulation mode, and can select the internal circulation mode or the external circulation mode according to the different temperatures of the internal gas and the external gas, improving the efficiency of the air conditioner and reducing the energy consumption of the air conditioner.

[0034] In one embodiment, as Figure 1As shown, the internal space 13 includes a first space and a second space arranged at intervals. The air conditioner box 1 is further provided with a first air duct 16 and a second air duct 17, and both the first air duct 16 and the second air duct 17 communicate between the first space and the second space; the internal circulation air inlet duct 14 and the external circulation air inlet duct 15 both communicate with the first space, and the internal circulation air outlet duct 11 and the external circulation air outlet duct 12 both communicate with the second space; it can be understood that the first space and the second space are respectively communicated with opposite ends of the first air duct 16 and the second air duct 17, and the first air duct 16 and the second air duct 17 can be separated by a partition.

[0035] The heating component 3 includes a dehumidifier 31 installed in the first space and a heat exchanger 32 installed in the second space; the blower 2 is installed in the first space. The blower 2 is used to drive the internal gas entering the internal circulation air inlet duct 14 to sequentially pass through the dehumidifier 31, the second air duct 17, and the heat exchanger 32 and then be output from the internal circulation air outlet duct 11, and is used to drive the external gas entering the external circulation air inlet duct 15 to sequentially pass through the dehumidifier 31, the first air duct 16, and the heat exchanger 32 and be output from the external circulation air outlet duct 12. It can be understood that the dehumidifier 31 includes, but is not limited to, a dehumidifier, etc., and the dehumidifier 31 is located between the blower 2 and the heat exchanger 32.

[0036] Specifically, as Figure 6 and Figure 7 shown, the internal gas flows into the air inlet of the blower 2 through the internal circulation air inlet duct 14. After the internal gas rotates through the impeller of the blower 2, the internal gas flows at a certain angle and then flows into the lower part of the dehumidifier 31. The internal gas flowing out of the dehumidifier 31 flows into the lower part of the heat exchanger 32 through the second air duct 17, and the internal gas at the lower part of the heat exchanger 32 flows out through the internal circulation air outlet duct 11.

[0037] As Figure 6 and Figure 7As shown, the external gas flows into the air inlet of the blower 2 through the external circulation air inlet duct 15. After the external gas passes through the rotation of the impeller of the blower 2, the external gas flows in a certain angular direction and then flows into the upper part of the dehumidifier 31. The external gas flowing out of the dehumidifier 31 flows into the upper part of the heat exchanger 32 through the first air duct 16, and the external gas at the upper part of the heat exchanger 32 flows out through the external circulation air outlet duct 12. In this embodiment, the design of the first air duct 16 and the second air duct 17 enables the gas output by the blower 2 to the internal circulation air outlet duct 11 and the gas output to the external circulation air outlet duct 12 not to mix. While meeting the heating and cooling requirements of the vehicle occupant compartment, there is no need to set too many channels and valves in the air conditioning box 1, saving the layout space of the double-flow air conditioning structure and improving its integration degree.

[0038] In one embodiment, as Figures 1 to 5 shown, the air conditioning box 1 includes an air inlet box 101, a blower box 102 and an air outlet box 103. The internal circulation air inlet duct 14 and the external circulation air inlet duct 15 are both arranged on the air inlet box 101. The first space is arranged on the blower box 102. The second space, the internal circulation air outlet duct 11 and the external circulation air outlet duct 12 are all arranged on the air outlet box 103. The first air duct 16 and the second air duct 17 are arranged between the blower box 102 and the air outlet box 103. It can be understood that the assembly relationship between the air inlet box 101, the blower box 102 and the air outlet box 103 can be determined according to actual needs, as long as the connection sequence of the inlets and outlets between the air inlet box 101, the blower box 102 and the air outlet box 103 is ensured. In this embodiment, the air conditioning box 1 is in a split form, improving the convenience of disassembly and assembly of the double-flow air conditioning structure.

[0039] In one embodiment, a first heat exchange flow channel (not shown in the figure) for heat exchange with the gas flowing through the heat exchanger 32 is provided on the heat exchanger 32, and a second heat exchange flow channel (not shown in the figure) communicating with the first heat exchange flow channel and for heat exchange with the gas flowing through the dehumidifier 31 is provided on the dehumidifier 31. It can be understood that during the process of the coolant flowing in the first heat exchange flow channel, heat can be exchanged with the gas flowing into the heat exchanger 32; during the process of the coolant flowing in the second heat exchange flow channel, heat can be exchanged with the gas flowing into the dehumidifier 31. Specifically, after the coolant exchanges heat with the gas in the first heat exchange flow channel of the heat exchanger 32, it flows into the second heat exchange flow channel of the dehumidifier 31 to exchange heat with the gas, and the coolant can circulate in the first heat exchange flow channel and the second heat exchange flow channel; during the process of the coolant circulating, the gas is first heated to a certain temperature by the dehumidifier 31 and then continues to exchange heat with the heat exchanger 32. Through the way of preheating first and then further heating, the heat exchange amount of the double-layer flow air-conditioning structure is significantly improved, so that the temperature of the gas flowing out from the inner circulation air outlet duct 11 and / or the outer circulation air outlet duct 12 is significantly increased, and the winter comfort is improved; similarly, when the air outlet temperature of the device is kept unchanged, the double-layer flow air-conditioning structure can reduce the inlet liquid temperature of the coolant and reduce the energy consumption of the air conditioner.

[0040] Further explained, when the dehumidifier 31 is in a damp-heat working condition, the dehumidifier 31 is not communicated with the first heat exchange flow channel and the second heat exchange flow channel, and the dehumidifier 31 can perform dehumidification treatment alone.

[0041] In one embodiment, as Figure 1 shown, the inner circulation air outlet duct 11 includes a front foot blowing air outlet duct 111 communicating with the second space, and the double-layer flow air-conditioning structure further includes a front foot blowing air damper 4 installed on the front foot blowing air outlet duct 111. The front foot blowing air damper 4 is used to control the on-off between the front foot blowing air outlet duct 111 and the second space. It can be understood that the outlet of the front foot blowing air outlet duct 111 faces the lower part of the front passenger compartment of the vehicle, and can blow air to the feet of the passengers in the front passenger compartment of the vehicle. The front foot blowing air damper 4 can control the opening and closing of the front foot blowing air outlet duct 111 and the opening degree of the front foot blowing air outlet duct 111. Further explained, when the front foot blowing air damper 4 is in an open state, the front foot blowing air damper 4 can also play a role in blocking the gas in the inner circulation air outlet duct 11 and the outer circulation air outlet duct 12.

[0042] In one embodiment, as Figure 1As shown, the inner circulation air outlet duct 11 further includes a rear foot air outlet duct 112, and the double - flow air - conditioning structure further includes a rear foot air door 5 installed in the rear foot air outlet duct 112. The rear foot air door 5 is used to control the on - off between the rear foot air outlet duct 112 and the second space. It can be understood that the outlet of the rear foot air outlet duct 112 faces the lower part of the rear passenger compartment of the vehicle, and can blow air on the feet of the passengers in the rear passenger compartment of the vehicle. The rear foot air door 5 can control the switch of the rear foot air outlet duct 112 and the opening degree of the rear foot air outlet duct 112.

[0043] In one embodiment, as Figure 2 shown, the heat exchanger 32 includes a first heat exchanger 321 and a second heat exchanger 322 arranged at intervals. The front foot air outlet duct 111 includes a left - hand front foot air outlet duct and a right - hand front foot air outlet duct. The rear foot air outlet duct 112 includes a left - hand rear foot air outlet duct and a right - hand rear foot air outlet duct. The first air duct 16 communicates with the left - hand front foot air outlet duct and the left - hand rear foot air outlet duct through the first heat exchanger 321, and the second air duct 17 communicates with the right - hand front foot air outlet duct and the right - hand rear foot air outlet duct through the second heat exchanger 322. It can be understood that the left - hand front foot air outlet duct is located in the driver's cockpit of the front passenger compartment of the vehicle, and the right - hand front foot air outlet duct is located in the co - driver's cockpit of the front passenger compartment of the vehicle. In this embodiment, by adjusting the flow rate and temperature of the coolant in the first heat exchanger 321, and by adjusting the flow rate and temperature of the coolant in the second heat exchanger 322, the temperature difference of the air flowing out of the left - hand front foot air outlet duct and the right - hand front foot air outlet duct can be changed, and the temperature difference of the air flowing out of the left - hand rear foot air outlet duct and the right - hand rear foot air outlet duct can be changed. Compared with the traditional air conditioner, the air doors and motors between the heat exchanger and the dehumidifier are reduced, and the manufacturing cost of this double - flow air - conditioning structure is reduced.

[0044] In one embodiment, as Figure 3 and Figure 4As shown, a mixing chamber 18 is further provided on the air inlet box 101. The external circulation air inlet duct 15 and the internal circulation air inlet duct 14 are both communicated with the first space through the mixing chamber 18. The double-flow air-conditioning structure further includes an air inlet damper 8 installed in the mixing chamber 18, and the air inlet damper 8 is used to control the on-off between the mixing chamber 18 and the first space. It can be understood that when the internal circulation air inlet duct 14 is in the conducting state and the external circulation air inlet duct 15 is in the closed state, the mixing chamber 18 can input internal gas at the inlet of the blower 2; when the internal circulation air inlet duct 14 is in the closed state and the external circulation air inlet duct 15 is in the conducting state, the mixing chamber 18 can input external gas at the inlet of the blower 2; when both the internal circulation air inlet duct 14 and the external circulation air inlet duct 15 are in the conducting state, the mixing chamber 18 can input internal gas and external gas at the inlet of the blower 2. The air inlet damper 8 can control the on-off between the mixing chamber 18 and the inlet of the blower 2.

[0045] In one embodiment, as Figure 1 shown, the external circulation air outlet duct 12 includes a face-blowing air outlet duct 121 and a defrosting air outlet duct 122. The double-flow air-conditioning structure further includes a face-blowing damper 6 installed in the face-blowing air outlet duct 121 and a defrosting damper 7 installed in the defrosting air outlet duct 122. The face-blowing damper 6 is used to control the opening and closing of the face-blowing air outlet duct 121, and the defrosting damper 7 is used to control the opening and closing of the defrosting air outlet duct 122. It can be understood that the outlet of the face-blowing air outlet duct 121 faces the upper part of the front passenger compartment of the vehicle, and can blow air at the face of the passengers in the front passenger compartment of the vehicle. The face-blowing damper 6 can control the opening and closing of the face-blowing air outlet duct 121 and the opening degree of the face-blowing air outlet duct 121; the outlet of the defrosting air outlet duct 122 faces the vehicle front windshield and can blow air at the vehicle front windshield. The defrosting damper 7 can control the opening and closing of the defrosting air outlet duct 122 and the opening degree of the defrosting air outlet duct 122. In this embodiment, the external circulation air outlet duct 12 integrates the face-blowing air outlet duct 121 and the defrosting air outlet duct 122, improving the applicability and versatility of the vehicle air conditioner.

[0046] In a specific embodiment, as Figure 3 and Figure 4 shown, the internal circulation air inlet duct 14 includes a left internal air inlet duct and a right internal air inlet duct, and the external circulation air inlet duct 15 includes an upper external air inlet duct. The double-flow air-conditioning structure further includes a right circulation damper and a left circulation damper. The right circulation damper is used to control the opening and closing between the upper external air inlet duct and the right internal air inlet duct, and the left circulation damper is used to control the opening and closing between the upper external air inlet duct and the left internal air inlet duct.

[0047] Another embodiment of the present utility model further provides a vehicle, including the above-mentioned double-flow air conditioning structure.

[0048] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A double-flow air conditioning structure, characterized in that: The invention comprises a blower, a heating component and an air conditioning box provided with an internal space; the blower and the heating component are both installed in the internal space; The air-conditioning box is also provided with an internal circulation air inlet duct and an external circulation air inlet duct connected to the first side of the internal space, and an internal circulation air outlet duct and an external circulation air outlet duct connected to the second side of the internal space; the blower is used to drive the internal air entering the internal circulation air inlet duct to pass through the heating component and then be output from the internal circulation air outlet duct, and is used to drive the external air entering the external circulation air inlet duct to pass through the heating component and then be output from the external circulation air outlet duct.

2. The double-layer air conditioning structure according to claim 1 is characterized in that: The internal space includes a first space and a second space that are spaced apart, and the air conditioning box is further provided with a first air duct and a second air duct, the first air duct and the second air duct are both connected between the first space and the second space; the inner circulation air inlet duct and the outer circulation air inlet duct are both connected to the first space, and the inner circulation air outlet duct and the outer circulation air outlet duct are both connected to the second space; The heating assembly includes a dehumidifier installed in the first space and a heat exchanger installed in the second space; The blower is installed in the first space. The blower is used to drive the internal air entering the internal circulation air inlet duct to pass through the dehumidifier, the second air duct and the heat exchanger in sequence and then be output from the internal circulation air outlet duct, and is used to drive the external air entering the external circulation air inlet duct to pass through the dehumidifier, the first air duct and the heat exchanger in sequence and then be output from the external circulation air outlet duct.

3. The double-layer air conditioning structure according to claim 2 is characterized in that: The air conditioning box includes an air inlet box, a blower box and an air outlet box, the internal circulation air inlet duct and the external circulation air inlet duct are both arranged on the air inlet box, the first space is arranged on the blower box, the second space, the internal circulation air outlet duct and the external circulation air outlet duct are all arranged on the air outlet box; the first air duct and the second air duct are arranged between the blower box and the air outlet box.

4. The double-layer air conditioning structure according to claim 2, characterized in that: The heat exchanger is provided with a first heat exchange channel for performing heat exchange with the gas flowing through the heat exchanger, and the dehumidifier is provided with a second heat exchange channel connected to the first heat exchange channel and used for performing heat exchange with the gas flowing through the dehumidifier.

5. The double-layer air conditioning structure according to claim 2, characterized in that: The internal circulation air outlet duct includes a front foot air outlet duct connected to the second space, and the double-layer flow air conditioning structure also includes a front foot air door installed on the front foot air outlet duct, and the front foot air door is used to control the connection between the front foot air outlet duct and the second space.

6. The double-flow air conditioning structure according to claim 5, characterized in that: The internal circulation air outlet duct also includes a rear foot air outlet duct, and the double-layer flow air conditioning structure also includes a rear foot air door installed in the rear foot air outlet duct, and the rear foot air door is used to control the connection between the rear foot air outlet duct and the second space.

7. The double-layer air conditioning structure according to claim 6, characterized in that: The heat exchanger includes a first heat exchanger and a second heat exchanger which are arranged at intervals, the front foot air outlet includes a left front foot air outlet and a right front foot air outlet, and the rear foot air outlet includes a left rear foot air outlet and a right rear foot air outlet; the first air duct is connected to the left front foot air outlet and the left rear foot air outlet through the first heat exchanger, and the second air duct is connected to the right front foot air outlet and the right rear foot air outlet through the second heat exchanger.

8. The double-layer air conditioning structure according to claim 3, characterized in that: The air inlet box is also provided with a mixing chamber, and the outer circulation air inlet duct and the inner circulation air inlet duct are both connected to the first space through the mixing chamber; The double laminar flow air conditioning structure further includes an air intake damper installed in the mixing chamber, and the air intake damper is used to control the connection between the mixing chamber and the first space.

9. The double-flow air conditioning structure according to claim 1, characterized in that: The external circulation air outlet duct includes a face blowing air outlet and a defrost air outlet duct, and the double-layer flow air conditioning structure also includes a face blowing air door installed in the face blowing air outlet duct and a defrost air door installed in the defrost air outlet duct, the face blowing air door is used to control the switch of the face blowing air outlet duct, and the defrost air door is used to control the switch of the defrost air outlet duct.

10. A vehicle, characterized in that: It comprises a double-flow air conditioning structure as described in any one of claims 1 to 9.

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