Fresh air stationary air conditioning system

Abstract

The application provides a new air stationary air conditioning system, comprising a shell assembly, a fan assembly and an air conditioning assembly, the shell assembly comprises a main body and a cover, the main body is internally provided with a fixing part, the main body is divided into a circulation channel and a new air channel by the fixing part, the circulation channel is provided with an air inlet, the new air channel is provided with an upper air vent and a lower air vent, the upper air vent is opened or closed through the cover; the fan assembly is arranged between the upper air vent and the lower air vent; the air conditioning assembly comprises an evaporator, the evaporator is arranged on the fixing part, and the circulation channel is communicated with the new air channel through the evaporator; the new air stationary air conditioning system has a new air mode and a circulation mode, in the new air mode, air circulates in the new air channel and does not pass through the evaporator; in the circulation mode, air sequentially passes through the circulation channel, the evaporator and the new air channel. The new air stationary air conditioning system reduces the occupied space and lowers the use cost on the basis of considering temperature regulation and air purification.

Description

Technical Field

[0001] This invention relates to the field of parking air conditioning technology, and in particular to a fresh air parking air conditioning system. Background Technology

[0002] Since RVs and motorhomes may be used for extended periods of rest, they are typically equipped with parking air conditioners and fresh air systems. A parking air conditioner is a system specifically designed for situations where the vehicle is off. It operates independently using the vehicle's DC power supply and continues to function even when the engine is off. When in operation, it circulates air within the vehicle, passing it through the evaporator to quickly cool or heat the interior, thus regulating the temperature. The fresh air system allows for air exchange between the vehicle's interior and the outside environment, purifying the air inside. It can also be used with HEPA filters (high-efficiency particulate air filters) to filter harmful substances such as formaldehyde and fine particulate matter.

[0003] However, independently installed parking air conditioners and fresh air systems still have some drawbacks:

[0004] Firstly, the parking air conditioner and fresh air system are installed on the vehicle as two separate devices. Due to limited installation space, this can easily lead to layout conflicts, making installation difficult and taking up a lot of space.

[0005] Secondly, since the parking air conditioner and the fresh air system work independently, they each need to be equipped with independent motors, fans and control units, and they need to be inspected and replaced separately during maintenance, resulting in higher manufacturing and maintenance costs.

[0006] Therefore, how to design a new air-conditioning parking system that can balance temperature regulation and air purification while reducing space occupation, lowering operating costs, and improving user experience is a technical problem that designers and developers need to solve. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a fresh air parking air conditioning system that, while balancing temperature regulation and air purification, reduces space occupation, lowers operating costs, and improves the user experience.

[0008] The objective of this invention is achieved through the following technical solution:

[0009] A fresh air parking air conditioning system, comprising: a housing assembly, a fan assembly, and an air conditioning assembly.

[0010] The housing assembly includes a main body and a cover. The main body is provided with a fixing member inside. The interior of the main body is divided into a circulation channel and a fresh air channel by the fixing member. The circulation channel has an air inlet, and the fresh air channel has an upper vent and a lower vent. The upper vent is opened or closed by the cover.

[0011] The fan assembly is disposed between the upper vent and the lower vent;

[0012] The air conditioning assembly includes an evaporator, which is mounted on the fixture, and the circulation channel is connected to the fresh air channel through the evaporator.

[0013] The fresh air parking air conditioning system has a fresh air mode and a recirculation mode. In the fresh air mode, the air circulates in the fresh air duct and does not pass through the evaporator. In the recirculation mode, the air passes through the recirculation duct, the evaporator and the fresh air duct in sequence.

[0014] In one embodiment, the fresh air duct has an upper region and a lower region, the fan assembly is disposed between the upper region and the lower region, and the evaporator is disposed in the upper region.

[0015] In one embodiment, the air conditioning assembly includes a first filter and a second filter, the first filter being disposed in the upper region and blocking the fresh air duct; the second filter being disposed in the circulation duct and blocking the circulation duct.

[0016] In one embodiment, the fastener has an extension that extends away from the fresh air duct, the evaporator is connected to the extension, and the circulation duct forms a bend at least partially through the extension.

[0017] In one embodiment, the air passage area of ​​the evaporator is a first air passage area S1, the air passage area of ​​the air inlet is a second air passage area S2, and the air passage area of ​​the lower vent is a third air passage area S3, where S1 > S2 and S1 > S3.

[0018] In one embodiment, the fan assembly includes a reversible motor, a connecting frame, and multiple blades. The reversible motor is fixedly installed in the fresh air duct via the connecting frame. The multiple blade array is disposed on the output shaft of the reversible motor. The reversible motor drives the multiple blades to rotate clockwise or counterclockwise.

[0019] In one embodiment, the air conditioning assembly includes a condenser, a condenser fan, and a compressor, wherein the condenser fan is mounted on the condenser, and the condenser is connected to the evaporator via the compressor.

[0020] In one embodiment, the housing assembly includes a base, the body, the compressor, and the condenser are disposed on the base, and the body at least partially extends through the base.

[0021] In one embodiment, the housing assembly includes a grid that covers the air inlet.

[0022] In one embodiment, the lower ventilation opening is provided with multiple guide vanes, and the multiple guide vanes are arrayed and arranged in parallel.

[0023] In summary, the new air parking air conditioning system of the present invention, while taking into account both temperature regulation and air purification, reduces space occupation, lowers operating costs, and improves user experience. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below.

[0025] Figure 1 This is a schematic diagram of the structure of the fresh air parking air conditioning system of the present invention;

[0026] Figure 2 for Figure 1 The diagram shown is a structural schematic of a fresh air parking air conditioning system.

[0027] Figure 3 for Figure 1 A plan sectional view (I) of the fresh air parking air conditioning system shown;

[0028] Figure 4 for Figure 3 Enlarged view of part A in the middle;

[0029] Figure 5 for Figure 1 The plan sectional view (II) of the fresh air parking air conditioning system shown;

[0030] Figure 6 for Figure 1 The diagram shows a partial structural schematic of the fresh air parking air conditioning system.

[0031] Figure 7 for Figure 1 The image shown is a bottom view of the fresh air parking air conditioning system.

[0032] Figure 8This is a schematic diagram of the air circulation path of the fresh air parking air conditioning system of the present invention;

[0033] Figure 9 A schematic diagram of the air circulation path in an existing air conditioning system;

[0034] Figure 10 for Figure 3 The diagram shows the structure of the wind turbine assembly.

[0035] The above figures include the following reference numerals:

[0036] 10. Fresh air parking air conditioning system; 100. Housing assembly; 110. Main body; 120. Cover; 130. Fixing component; 131. Extension; 140. Circulation channel; 141. Air inlet; 142. Bending section; 150. Fresh air channel; 151. Upper vent; 152. Lower vent; 153. Upper area; 154. Lower area; 160. Base; 170. Grid; 180. Guide fan blade; 200. Fan assembly; 210. Reversible motor; 211. Output shaft; 220. Connecting frame; 230. Blade; 300. Air conditioning assembly; 310. Evaporator; 320. Condenser; 330. Condenser fan; 340. Compressor; 350. First filter element; 360. Second filter element. Detailed Implementation

[0037] To facilitate understanding of the present invention, a more comprehensive description will be provided below with reference to the accompanying drawings. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation conditions of the present invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives achieved by the present invention, should still fall within the scope of the technical content disclosed in the present invention. Furthermore, the terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and are not intended to limit the scope of the present invention. Changes or adjustments to their relative relationships are also considered within the scope of the present invention without substantial alteration of the technical content.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0039] This invention provides a fresh air parking air conditioning system 10, which, while balancing temperature regulation and air purification, reduces space occupation, lowers operating costs, and improves the user experience. Figure 1 and Figure 3 As shown, the new air parking air conditioning system 10 includes: housing assembly 100, fan assembly 200 and air conditioning assembly 300.

[0040] Among them, such as Figures 1 to 3 As shown, the housing assembly 100 includes a main body 110 and a cover 120. A fixing member 130 is provided inside the main body 110. The interior of the main body 110 is divided into a circulation channel 140 and a fresh air channel 150 by the fixing member 130. The circulation channel 140 has an air inlet 141, and the fresh air channel 150 has an upper vent 151 and a lower vent 152. The upper vent 151 is opened or closed by the cover 120. Preferably, the air inlet 141 is located around the lower vent 152, that is, the air inlet 141 is annular, surrounding the lower vent 152.

[0041] The fan assembly 200 is located between the upper vent 151 and the lower vent 152.

[0042] The air conditioning assembly 300 includes an evaporator 310, which is mounted on a fixture 130. A circulation channel 140 communicates with a fresh air channel 150 via the evaporator 310. Preferably, as shown... Figure 5 As shown, the evaporator 310 is located around the fresh air duct 150.

[0043] The fresh air parking air conditioning system 10 has a fresh air mode and a recirculation mode. In fresh air mode, the fresh air device allows air to circulate within the fresh air duct 150 without passing through the evaporator 310, achieving air circulation between the vehicle interior and the outside. In recirculation mode, the air inside the vehicle passes through the recirculation duct 140, the evaporator 310, and the fresh air duct 150 in sequence. Through the heat absorption or release of the evaporator 310, the air inside the vehicle is cooled or heated, thereby regulating the interior temperature of the vehicle.

[0044] Specifically, such as Figure 10As shown, the fan assembly 200 includes a reversible motor 210, a connecting frame 220, and multiple blades 230. The reversible motor 210 is fixedly installed in the fresh air duct 150 via the connecting frame 220. The multiple blades 230 are arrayed on the output shaft 211 of the reversible motor 210. The reversible motor 210 drives the multiple blades 230 to rotate clockwise or counterclockwise. Understandably, airflow is generated during the rotation of the multiple blades 230 by the reversible motor 210, and the airflow directions are opposite when the reversible motor 210 rotates clockwise or counterclockwise. In other words, the fan assembly 200 can generate either rising or downward airflow, thus adapting to different operating modes.

[0045] In this invention, such as Figure 3 and Figure 4 As shown, the fresh air duct 150 has an upper region 153 and a lower region 154. The fan assembly 200 is located between the upper region 153 and the lower region 154, and the evaporator 310 is located within the upper region 153. In circulation mode, the upper vent 151 is closed by the cover 120, forming a relatively enclosed space in the upper region 153. At this time, the motor assembly 200 rotates to generate downward airflow, creating a negative pressure in the upper region 153, which in turn provides power for the air in the circulation duct 140 to pass through the evaporator 310.

[0046] The working principle of the fresh air parking air conditioning system 10 of the present invention will be explained below in conjunction with the above structure. Please refer to the following: Figure 3 and Figure 6 :

[0047] During operation, users can adjust the working mode of the fresh air parking air conditioning system 10 as needed;

[0048] In fresh air mode, the fresh air parking air conditioning system 10 has two working states: fresh air state and exhaust air state;

[0049] When in exhaust mode, the cover 120 is open and the upper vent 151 is open. At the same time, the reversible motor 210 drives the blades 230 to rotate counterclockwise, thereby generating an upward airflow. This allows the air inside the vehicle to enter the fresh air duct 150 through the lower vent 152 and then be discharged to the outside through the upper vent 151, thus drawing the polluted air inside the vehicle to the outside and achieving the exhaust function.

[0050] When in fresh air mode, the cover 120 is open and the upper vent 151 is open. The reversible motor 210 drives the blades 230 to rotate clockwise to generate a downward airflow, which allows outside air to enter the fresh air duct 150 through the upper vent 151 and then enters the vehicle interior through the lower vent 152, drawing fresh outside air into the vehicle interior to achieve the fresh air function.

[0051] In circulation mode, the cover 120 is closed, and the upper vent 151 is closed through the cover 120. At the same time, the reversible motor 210 drives the blades 230 to rotate clockwise, thereby generating a downward airflow. The air inside the vehicle is drawn into the circulation channel 140 through the air inlet 141, and then enters the fresh air channel 150 through the evaporator 310, and finally returns to the vehicle interior through the lower vent 152. During this process, the evaporator 310 absorbs or releases heat, thereby exchanging heat with the flowing air, that is, achieving cooling or heating, thereby regulating the interior temperature of the vehicle and realizing the temperature regulation function.

[0052] It should be noted that, compared with the prior art, the fresh air parking air conditioning system 10 of the present invention has the following advantages:

[0053] Firstly, users can choose to use the fresh air mode or circulation mode of the fresh air parking air conditioning system 10 as needed, thereby realizing the functions of fresh air, exhaust air or temperature regulation, making the fresh air parking air conditioning system 10 suitable for a variety of scenarios. Users only need to control a single system to achieve air purification or temperature regulation, which improves the user experience.

[0054] Secondly, the fresh air equipment and parking air conditioner are integrated into one unit. During installation, only the fresh air parking air conditioner system 10 needs to be installed, without the need for other devices. This avoids the problem of layout conflicts caused by limited installation space, facilitates installation, and reduces the overall size, thereby reducing the space occupied.

[0055] Third, the two modes of the fresh air parking air conditioning system 10 share the same fan component 200. During maintenance, only the fan component 200 needs to be inspected and replaced, thereby reducing manufacturing and maintenance costs.

[0056] Furthermore, the design of this invention also considers the airflow path. Specifically, hot air tends to rise and tends to accumulate in the upper space inside the vehicle, while cold air tends to descend. In circulation mode, the air inlet 141 is used to draw in hot air, and the lower vent 152 is used to exhaust the cooled air. This invention positions the air inlet 141 around the lower vent 152, and the airflow path for hot and cold air during circulation is as follows... Figure 8 As shown, hot air in the upper space of the vehicle is drawn into the circulation channel 140 through the air inlet 141, cooled by the evaporator 310 to form cold air, and then discharged through the lower vent 152. The flow path of the hot air at this time (e.g., Figure 8 (as shown by the solid arrow in the image) and the path of cold air flow (as shown in the image) Figure 8 (As shown by the dashed arrows in the image) They are independent and will not interfere with each other;

[0057] Assuming that the air inlet 141 and the lower air vent 152 are arranged side by side (e.g.) Figure 9As shown), the air inlet 141 does not surround the lower vent 152. During circulation, hot air in the upper space of the vehicle is drawn into the circulation channel 140 through the air inlet 141, while cold air is discharged through the lower vent 152. Figure 9 As shown, the flow path of some hot air (e.g.) Figure 9 (As shown by the solid arrow in the image) will interact with the path of cold air flow (such as...) Figure 9 Interference occurs (as indicated by the solid arrow in the image), affecting gas flow efficiency and temperature control effect.

[0058] Therefore, the positional design of the air inlet 141 and the lower ventilation outlet 152 of the present invention can ensure that the flow paths of hot and cold air are independent of each other and will not interfere with each other, thereby improving the temperature regulation effect and efficiency of the fresh air parking air conditioning system 10.

[0059] Furthermore, the present invention has a specially designed position for the evaporator 310, the design principle of which is as follows:

[0060] Understandably, outside air contains a lot of impurities and dust. In existing technologies, outside air often passes through the evaporator 310, which causes impurities and dust in the air to easily adhere to the evaporator 310, thus affecting the cooling or heating effect of the evaporator 310. At the same time, users need to clean the evaporator 310 frequently, reducing the user experience. The present invention places the evaporator 310 outside the fresh air duct 150. In fresh air mode, outside air does not need to pass through the evaporator 310 when flowing through the fresh air duct 150, reducing the problem of impurities and dust in the air adhering to the evaporator 310.

[0061] Furthermore, in the prior art, when air passes through the evaporator 310, the evaporator 310 obstructs airflow to a certain extent. If the evaporator 310 were placed inside the fresh air duct 150, air would not be able to flow smoothly through the duct, thus affecting the airflow effect in either fresh air or exhaust mode. In this invention, the evaporator 310 is placed outside the fresh air duct 150, which contains no other structures besides the necessary fan assembly 200. In fresh air mode, air can flow smoothly through the fresh air duct 150. Simultaneously, the evaporator 310 can reduce the backflow of air into the circulation channel 140, meaning the evaporator 310 has a certain airflow guiding effect.

[0062] Therefore, through the design of the evaporator 310, the present invention reduces the amount of impurities and dust in the air adhering to the evaporator 310, thereby improving the cooling and heating effect of the evaporator 310 on the air and enhancing the user experience. On the other hand, in the fresh air mode, the evaporator 310 does not obstruct the airflow in the fresh air duct 150 and has a certain airflow guiding effect, thereby ensuring smooth airflow.

[0063] Chinese invention patent CN110450606A, entitled "Top-mounted Ventilation, Purification, Refrigeration, and Parking Air Conditioning System Assembly," discloses a top-mounted ventilation, purification, and refrigeration parking air conditioning system assembly. Its upper housing is mounted on the top of the driver's cab and extends outwards. A fresh air vent is located at the top of the upper housing. An internal circulation filter is fixed to an interior trim panel via clips. The interior trim panel is connected to a lower housing. A groove exists in the middle of the upper and lower housings, and an external circulation filter is installed in this groove. An internal / external circulation damper is mounted on the left side of the external circulation filter. An internal / external circulation actuator is fixed to the lower housing with screws. A blower and an evaporator are installed in the left cavity of the housing, and a compressor is installed in the right cavity. A condenser assembly is connected to the compressor, and the condenser assembly is connected to the evaporator via a piping assembly. This invention can provide cooling, ventilation, and purification, achieving multiple functions. However, existing roof-mounted ventilation, purification, and refrigeration parking air conditioning systems do not have a structure to slow down the airflow, which means they cannot slow down the speed of the air passing through the evaporator. As a result, some air is discharged before it has been sufficiently cooled or heated, leading to poor temperature control.

[0064] Compared with the prior art described above, the present invention has been specially designed to avoid this situation, thereby solving the aforementioned problem. Specifically,

[0065] like Figure 6 As shown, the fixture 130 has an extension 131 extending away from the fresh air duct 150. The evaporator 310 is connected to the extension 131, and the circulation duct 140 forms a bend 142 at least partially through the extension 131. Understandably, air experiences additional resistance due to the change in flow direction when passing through the bend, effectively slowing down the airflow velocity. Therefore, in circulation mode, the airflow velocity after passing through the bend 142 is effectively slowed down, thereby slowing down the airflow velocity through the evaporator 310, resulting in a longer contact time between the air and the evaporator 310, thus achieving sufficient cooling or heating.

[0066] It should also be noted that during operation, the area through which air can flow is called the air passage area. Specifically, the air passage area of ​​the evaporator 310 is the first air passage area S1, the air passage area of ​​the air inlet 141 is the second air passage area S2, and the air passage area of ​​the lower vent 152 is the third air passage area S3. The first air passage area S1, the second air passage area S2, and the third air passage area S3 have the following relationship: S1 > S2, and S1 > S3.

[0067] With a stable ventilation volume, the first airflow area S1 is larger than the second airflow area S2, effectively making the circulation channel 140 a diffusion channel, thus slowing down the airflow speed within the channel and reducing the speed of air passing through the evaporator 310. Simultaneously, the first airflow area S1 is larger than the third airflow area S3, effectively making the fresh air channel 150 a converging channel, thereby extending the residence time of air at the evaporator 310. This allows the air to be sufficiently cooled or heated by the evaporator 310, ensuring the temperature regulation effect and efficiency of the evaporator 310.

[0068] Furthermore, such as Figure 5 As shown, the evaporator 310 surrounds the fresh air duct 150. At this time, the volume of the evaporator 310 is larger, and the area through which air can pass is larger, that is, the first air passage area S1 is larger, which further slows down the speed of air passing through the evaporator 310. At the same time, the evaporator 310 can cool or heat more air, ensuring the temperature regulation effect and efficiency of the evaporator 310.

[0069] It should be emphasized that, compared with the prior art, the fresh air parking air conditioning system 10 of the present invention effectively slows down the air circulation speed through the above-mentioned special design, so that the air passes through the evaporator 310 slowly, prolonging the residence time of the air at the evaporator 310, so that the air can be fully cooled or heated by the evaporator 310, ensuring the temperature regulation effect and efficiency of the fresh air parking air conditioning system 10.

[0070] In some embodiments, the air conditioning component 300 is provided with a corresponding filter structure to remove suspended particulate matter, harmful substances, etc. from the air, thereby purifying the air.

[0071] Among them, such as Figure 4 and Figure 6 As shown, the air conditioning component 300 includes a first filter element 350, which is disposed in the upper region 153 and blocks the fresh air duct 150. Thus, the first filter element 350 can filter the air entering the vehicle from the outside, ensuring the cleanliness of the air inside the vehicle.

[0072] The air conditioning unit 300 also includes a second filter 360, which is disposed within the circulation channel 140 and blocks the circulation channel 140. Thus, the second filter 360 can filter the air inside the vehicle, ensuring the cleanliness of the air inside the vehicle.

[0073] Preferably, the filtration accuracy of the second filter element 360 is greater than that of the first filter element 350, and the difference between their filtration accuracies is not less than 20 μm. Understandably, there are usually more impurities and harmful substances in the outside air than in the vehicle's interior air. Using a filter structure with higher filtration accuracy to filter the outside air may cause the filter structure to become clogged, leading to problems that affect air intake performance.

[0074] In some embodiments, such as Figure 2 and Figure 7 As shown, the housing assembly 100 includes a grid 170 that covers the air inlet 141. The grid 170 can block large particles of impurities such as dust clumps, hair, and paper scraps from entering the circulation channel 140, thereby protecting the evaporator 310 and avoiding the problem of impurities contaminating the evaporator 310.

[0075] In some embodiments, such as Figure 2 and Figure 7 As shown, multiple guide vanes 180 are provided at the lower ventilation opening 152, and the multiple guide vanes 180 are arrayed and arranged in parallel. Preferably, as shown... Figure 4 As shown, the air guide vane 180 has an angle α with the roof surface, where 0° < α < 135°. Users can adjust the size of the angle α as needed. The air guide vane 180 guides the airflow and optimizes the airflow distribution, thereby improving the user experience.

[0076] like Figure 1 and Figure 5 As shown, the air conditioning assembly 300 includes a condenser 320, a condenser fan 330, and a compressor 340. The condenser fan 330 is mounted on the condenser 320, and the condenser 320 is connected to the evaporator 310 via the compressor 340. Taking refrigeration operation as an example, the circulating refrigerant absorbs heat at the evaporator 310 and releases heat as it flows through the condenser 320. The condenser fan 330 is used to improve the heat dissipation efficiency of the condenser 320, and the compressor 340 provides power for the circulation of the refrigerant.

[0077] In some embodiments, such as Figure 1 , Figure 2 and Figure 5As shown, the housing assembly 100 includes a base 160, a main body 110, a compressor 340, and a condenser 320, all mounted on the base 160. At least a portion of the main body 110 passes through the base 160. Thus, the base 160 integrates the main body 110, compressor 340, and condenser 320 into a single unit. During installation, only the base 160 needs to be installed, eliminating the need for separate installation of individual components and simplifying the installation process for the fresh air parking air conditioning system 10. Specifically, the base 160 can be installed on the vehicle roof, which has mounting holes for the fresh air parking air conditioning system 10. The portion of the main body 110 passing through the base 160 can extend into the vehicle interior through the mounting holes. The engagement of the portion of the main body 110 through the mounting holes allows for positioning of the fresh air parking air conditioning system 10 during installation, facilitating its installation. Furthermore, after installation, the position of the fresh air parking air conditioning system 10 can be secured, ensuring installation stability.

[0078] In summary, the new air parking air conditioning system 10 of the present invention, while taking into account both temperature regulation and air purification, reduces space occupation, lowers operating costs, and improves user experience.

[0079] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A fresh air parking air conditioning system, characterized in that, The new air parking air conditioning system includes: a housing assembly, a fan assembly, and an air conditioning assembly. The housing assembly includes a main body and a cover. The main body is provided with a fixing member inside. The interior of the main body is divided into a circulation channel and a fresh air channel by the fixing member. The circulation channel has an air inlet, and the fresh air channel has an upper vent and a lower vent. The upper vent is opened or closed by the cover. The fan assembly is disposed between the upper vent and the lower vent; The air conditioning assembly includes an evaporator, which is mounted on the fixture, and the circulation channel is connected to the fresh air channel through the evaporator. The fresh air parking air conditioning system has a fresh air mode and a recirculation mode. In the fresh air mode, the air circulates in the fresh air duct and does not pass through the evaporator. In the recirculation mode, the air passes through the recirculation duct, the evaporator and the fresh air duct in sequence.

2. The fresh air parking air conditioning system according to claim 1, characterized in that, The fresh air duct has an upper region and a lower region, the fan assembly is located between the upper region and the lower region, and the evaporator is located in the upper region.

3. The fresh air parking air conditioning system according to claim 2, characterized in that, The air conditioning assembly includes a first filter and a second filter. The first filter is disposed in the upper region and blocks the fresh air duct. The second filter is disposed in the circulation duct and blocks the circulation duct.

4. The fresh air parking air conditioning system according to claim 1, characterized in that, The fastener has an extension portion that extends away from the fresh air duct, the evaporator is connected to the extension portion, and the circulation duct forms a bend section at least partially through the extension portion.

5. The fresh air parking air conditioning system according to claim 1, characterized in that, The air passage area of ​​the evaporator is the first air passage area S1, the air passage area of ​​the air inlet is the second air passage area S2, and the air passage area of ​​the lower vent is the third air passage area S3, where S1 > S2 and S1 > S3.

6. The fresh air parking air conditioning system according to claim 1, characterized in that, The fan assembly includes a reversible motor, a connecting frame, and multiple blades. The reversible motor is fixedly installed in the fresh air duct through the connecting frame. The multiple blade arrays are arranged on the output shaft of the reversible motor. The reversible motor drives the multiple blades to rotate clockwise or counterclockwise.

7. The fresh air parking air conditioning system according to claim 1, characterized in that, The air conditioning component includes a condenser, a condenser fan, and a compressor. The condenser fan is mounted on the condenser, and the condenser is connected to the evaporator via the compressor.

8. The fresh air parking air conditioning system according to claim 7, characterized in that, The housing assembly includes a base, the main body, the compressor, and the condenser are disposed on the base, and the main body at least partially extends through the base.

9. The fresh air parking air conditioning system according to claim 1, characterized in that, The housing assembly includes a grid that covers the air inlet.

10. The fresh air parking air conditioning system according to claim 1, characterized in that, The lower ventilation opening is provided with multiple guide vanes, and the multiple guide vanes are arrayed and arranged in parallel.

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