In-vehicle gas shunting system and vehicle

Abstract

The application provides an in-vehicle gas shunt system and a vehicle, and belongs to the technical field of automobile air conditioning systems. The in-vehicle gas shunt system is provided with independent rear-row return air channels and rear-row exhaust air channels, realizes a self-circulation mode of the rear-row area, realizes physical isolation of front-row and rear-row air from the spatial dimension, ensures a cross-pollution-free driving environment of the front-row area, and reduces driving safety risks. The rear-row intake air channels, the rear-row exhaust air channels and the rear-row air exhaust ducts construct an external circulation mode of the rear-row area. When the rear-row passengers need fresh air, external air can be directly introduced through the rear-row intake air channels, and the original air can be exhausted to the outside through the independent rear-row air exhaust ducts, effectively preventing mutual interference with the air of the front-row area and improving the comfort of the rear-row passengers. The switchable design of the rear-row independent self-circulation mode and the external circulation mode provides more choices for personalized air requirements of the rear row, and adapts to multiple demand scenarios when multiple people ride.

Description

Technical Field

[0001] This application belongs to the field of automotive air conditioning system technology, and more specifically, relates to an in-vehicle gas distribution system and a vehicle. Background Technology

[0002] An automotive air conditioning system is a device that cools, heats, ventilates, and purifies the air inside a vehicle. It provides a comfortable riding environment for passengers, reduces driver fatigue, and improves driving safety.

[0003] Currently, most vehicle air conditioning systems adopt a unified vehicle circulation mode: a main air intake is located at the front of the vehicle, and the air entering through the main air intake is filtered and then delivered to the front and rear exhaust vents through the main air duct, and finally discharged through the exhaust outlet at the rear of the vehicle.

[0004] However, in the traditional model described above, the air inside the vehicle is in a unified circulation state, with the air in the front driving area and the rear passenger area mixing naturally through convection. When a rear passenger smokes (or when there are respiratory viruses or other pollutants in the rear), the smoke (or other pollutants) gradually diffuses into the front driving area with the airflow, which not only adversely affects the driver's physical and mental health but may also lead to problems such as decreased concentration and reaction speed, increasing driving safety hazards. In addition, when multiple passengers are traveling in the vehicle, the needs of passengers in different areas for air temperature, wind speed, and cleanliness may vary, and the uniform adjustment method of the traditional model is difficult to meet individual air quality requirements. Utility Model Content

[0005] The purpose of this application is to provide an in-vehicle air diversion system and vehicle, which aims to achieve self-circulation and purification of air in the rear seat area, avoid affecting the driving environment of the front seat, and ensure driving safety; at the same time, it enables independent adjustment of air parameters in the front and rear seat areas to meet personalized needs.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: Firstly, an in-vehicle gas distribution system is provided, comprising: The rear air duct is located inside the vehicle body and has rear air vents facing the rear passenger area. The air intake and filtration unit is connected to the air intake side of the rear exhaust duct on the air outlet side. A rear air return duct is located inside the vehicle body and has a rear air return vent facing the rear area. The rear air return duct is connected to the air intake side of the air intake and filter unit. A rear air intake duct, located within the vehicle body and connected to the air intake side of the air intake filter unit, is used to introduce outside air; and The rear exhaust duct is located inside the vehicle body and has a rear exhaust port that communicates with the rear passenger area, used to exhaust air from the rear passenger area to the outside.

[0007] In traditional in-car air circulation mode, the air inside the vehicle is in a unified circulation state, with the air in the front driving area and the rear passenger area mixing naturally through convection. On the one hand, this full-area air circulation means that pollutants from the rear can easily spread to the front, posing a serious threat to the driver's health and driving safety. On the other hand, in traditional circulation mode, the air temperature, wind speed, and cleanliness can only be adjusted as a whole, failing to meet the individual needs of different areas when multiple passengers are traveling together. This significantly reduces the riding experience for passengers with high air quality requirements.

[0008] Compared with the prior art, the solution shown in this application realizes the self-circulation mode of the rear area by setting up independent rear air return channels and rear air exhaust channels. In this self-circulation mode, the air in the rear area forms a closed loop flow, completely separated from the traditional main air duct of the vehicle. It realizes physical isolation of the front and rear air from a spatial dimension, ensuring a driving environment without cross-contamination in the front area and reducing driving safety risks.

[0009] By setting up rear air intake channels, rear air exhaust channels, and rear exhaust ducts, an external circulation mode is constructed for the rear area. When rear passengers need fresh air, outside air can be directly introduced through the rear air intake channels, and the original stale air in the rear area can be directly discharged to the outside through the independent rear exhaust ducts, effectively blocking mutual interference with the air in the front area and improving the comfort of rear passengers.

[0010] In addition, the switchable design of independent self-circulation mode and external circulation mode in the rear provides more options for the personalized air needs of the rear passengers. With the addition of targeted adjustment components, rear passengers can adjust the air temperature, wind speed and cleanliness according to their own needs, breaking the limitations of the traditional overall adjustment mode and realizing the zoned management of the air in the car, which can meet the diverse needs of multiple passengers.

[0011] In conjunction with the first aspect, in one possible implementation, the rear air intake duct is connected to the vehicle's main air intake duct, which is equipped with a blower unit for drawing in outside air.

[0012] By connecting the rear air intake duct to the vehicle's main air intake duct, this system achieves efficient coordination with the vehicle's original air conditioning system. This allows for the intake of outside air through the main air intake duct, eliminating the need for a separate air intake vent for the rear air intake duct on the vehicle body and reducing the need for modifications to the vehicle's structure. Furthermore, the blower unit is usually equipped with a filter assembly. The outside air entering through the main air intake duct is first filtered by this filter assembly and then further filtered by the rear air intake filter unit, ensuring the cleanliness of the air in the rear area.

[0013] In some embodiments, the rear air return duct is connected to the air intake side of the rear air intake duct via a three-way valve; When the three-way valve is in the first state, the rear exhaust return air passage, the rear exhaust air inlet passage, and the rear exhaust air passage are connected to form a self-circulating airflow in the rear area; When the three-way valve is in the second state, the main air intake channel, the rear air intake channel, and the rear air exhaust channel are connected to supply outside air to the rear area to form an external airflow circulation.

[0014] The air circulation mode in the rear area can be switched by changing the state of the three-way valve. On the one hand, this greatly simplifies the system structure and reduces the number of pipes and control components. On the other hand, it improves the switching response speed and reduces the risk of failure that may occur when multiple components are linked, thereby improving the efficiency and reliability of the circulation mode switching.

[0015] In some embodiments, the rear air return vent is located between the front area and the rear area, and is oriented towards the rear area.

[0016] The placement of the rear air vents minimizes the diffusion and return path of pollutants in the rear, effectively reducing the risk of pollutants spreading to the front seats, protecting the health and driving safety of the driver, and improving the efficiency of air circulation and purification in the rear area. When air diffuses from the front to the rear, the centrally located rear air vents also act as an interceptor, preventing odors from spreading directly from the front to the rear, thus strengthening the air isolation between the front and rear and ensuring a comfortable ride for rear passengers.

[0017] In some embodiments, the main air intake channel is further provided with a central air outlet, which is located between the front row area and the rear row area and is oriented towards the front row area.

[0018] By blowing air forward through the central air vent, an airflow barrier is formed between the front and rear rows, preventing odor molecules from the front row area from spreading to the rear row area under natural convection. This avoids rear passengers being passively exposed to odors from the front row and improves the riding experience for rear passengers.

[0019] In some embodiments, multiple central air outlets and multiple rear air return outlets are provided, and the multiple central air outlets and multiple rear air return outlets are arranged alternately and at intervals along the width direction of the vehicle body.

[0020] By alternating and spacing the central air outlet and the rear air return outlet, the problem of airflow being directly drawn into the rear air return outlet and short-circuiting is avoided. This allows the airflow from the central air outlet to effectively block the spread of odors from the front to the rear, ensuring the isolation effect between the front and rear air and guaranteeing the stability of the system.

[0021] In some embodiments, the in-vehicle air diversion system further includes a front exhaust duct, which is disposed in the vehicle body and has a front exhaust port communicating with the front area. The front exhaust port is located on the front side of the front area, and the front exhaust duct is used to exhaust air from the front area.

[0022] The independent exhaust ducts of the front row, working in conjunction with the independent exhaust ducts of the rear row, enable the front and rear areas to form independent air circulation spaces, ensuring no airflow interaction and further reinforcing the airflow isolation effect between the front and rear areas.

[0023] In some embodiments, an exhaust fan is provided on the front exhaust duct, and the exhaust fan is used to draw air from the front area into the front exhaust duct.

[0024] The active suction of the exhaust fan can significantly improve the air exhaust efficiency of the front row area, quickly drawing the local polluted air such as sweat and odors from the front row area into the front exhaust duct through the front exhaust port, significantly shortening the residence time of polluted air in the vehicle and reducing the possibility of it spreading to the rear row area from the source.

[0025] In conjunction with the first aspect, in one possible implementation, the in-vehicle gas diversion system further includes a gas quality detector, which is disposed on the vehicle body and used to detect the air quality in the rear passenger area.

[0026] The gas quality detector can capture changes in air quality in the rear area in real time. When the gas quality detector detects that the air quality in the rear area meets the standards, it can automatically reduce the power of the rear blower in the air intake filter unit or put it into standby mode to reduce energy consumption and avoid waste of resources.

[0027] Secondly, embodiments of this application also provide a vehicle, including the aforementioned in-vehicle gas distribution system.

[0028] The beneficial effects of the vehicle provided in this application embodiment are the same as those of the aforementioned in-vehicle gas diversion system, and will not be repeated here. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application, 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 this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A top view of an in-vehicle gas distribution system provided in an embodiment of this application; Figure 2 This is a side view of an in-vehicle gas distribution system provided in an embodiment of this application. Figure 3 Examples of this application Figure 2 Enlarged structural diagram of section A (three-way valve in first position); Figure 4 Examples of this application Figure 3 A schematic diagram of a three-way valve in its second state.

[0031] In the picture: 1. Rear exhaust duct; 11. Rear exhaust vent; 12. Suction filter unit; 121. Rear blower; 122. Rear filter element; 2. Rear return air duct; 21. Rear return air vent; 22. Rear exhaust duct; 221. Rear exhaust outlet; 3. Rear air intake duct; 4. Main air intake duct; 41. Blower unit; 5. Three-way valve; 6. Central air outlet; 7. Front exhaust duct; 71. Front exhaust outlet; 72. Exhaust fan; 8. Gas quality detector; 9. Front exhaust vent; 10. Vehicle body; 101. Rear area; 102. Front area. Detailed Implementation

[0032] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0033] It should be noted that when an element is referred to as being "set on" another element, it can be directly on or indirectly on that other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0034] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0035] For ease of understanding, the terms "front" and "rear" in this application refer to the vehicle's own orientation, with the front of the vehicle representing "front" and the rear of the vehicle representing "rear". It can be understood that the front-rear direction is the length direction of the vehicle, and the left-right direction is the width direction of the vehicle.

[0036] Currently, the unified air circulation mode remains the mainstream design for passenger vehicle air conditioning systems. The specific structure of this mode is as follows: a main air intake is set at the front of the vehicle. Outside air (external circulation mode) or in-vehicle air (internal circulation mode) enters through the main air intake and is first filtered by the air conditioning filter to remove large particles of dust and some odors. Then, the filtered air enters the main air duct that runs through the entire vehicle. The main air duct is connected to the front and rear exhaust vents through branch pipes, delivering the treated air to the entire space of the front and rear rows of the vehicle. Finally, the air inside the vehicle is exhausted through the unified exhaust vent at the rear of the vehicle, forming a complete air circulation process.

[0037] However, the inventors discovered that as consumers' demands for riding experience and health and safety continue to rise, the technical shortcomings of the aforementioned traditional air circulation mode are becoming increasingly apparent: On the one hand, the full-area air circulation within the vehicle makes it extremely easy for rear-seat pollution sources to spread to the front, posing a serious threat to the driver's health and driving safety. In actual riding scenarios, rear-seat passengers smoking is a typical source of pollution, and the smoke produced contains various harmful substances such as nicotine, tar particles, carbon monoxide, and benzo[a]pyrene. Under the airflow of the unified main duct, the smoke is drawn into the main duct from the rear-seat air and then blown directly to the driver's seat through the front air vents. Although the smoke is filtered by the air conditioning filter during the above circulation process, it cannot ensure the complete removal of harmful substances, resulting in the driver still passively inhaling secondhand smoke; moreover, under the natural convection of air inside the vehicle, the rear-seat smoke also spreads forward, directly affecting the driving environment of the front seats, thereby increasing driving safety hazards. In addition, if there are respiratory virus carriers in the back seats, virus particles will enter the air with droplets produced by coughing and sneezing, and spread to the front seats through the circulation inside the car, increasing the driver's risk of infection.

[0038] On the other hand, the uniform air conditioning system of traditional recirculation models cannot meet the personalized needs of different areas when multiple passengers are traveling together. In scenarios such as family trips and carpooling, the air conditioning needs of front and rear passengers differ significantly. For example, children in the back seat, due to their weaker immune systems, require lower fan speeds to avoid catching a cold, while the driver in the front seat, due to the heat generated during driving, requires higher fan speeds to cool down; or rear passengers may be sensitive to airborne dust and require high-grade filters to ensure air quality, while front passengers have no special needs. In the traditional uniform recirculation model, air temperature, fan speed, and cleanliness can only be adjusted as a whole, and cannot be individually set for the front and rear areas, significantly reducing the riding experience for passengers with high air quality requirements.

[0039] To resolve the above issues, please refer to the following: Figures 1 to 4 This application describes an in-vehicle air distribution system and a vehicle. The in-vehicle air distribution system includes a rear exhaust duct 1, a rear return air duct 2, a rear intake air duct 3, and a rear exhaust air duct 22. The rear exhaust duct 1 is located inside the vehicle body 10 and has a rear exhaust vent 11 facing the rear passenger area 101. An air intake filter unit 12 is installed on the rear exhaust duct 1. The rear return air duct 2 is located inside the vehicle body 10 and has a rear return air vent 21 facing the rear passenger area 101. The rear return air duct 2 is connected to the intake side of the air intake filter unit 12. The rear intake air duct 3 is located inside the vehicle body 10 and connected to the intake side of the air intake filter unit 12, used to introduce outside air. The rear exhaust air duct 22 is located inside the vehicle body 10 and has a rear exhaust vent 221 communicating with the rear passenger area 101, used to exhaust air from the rear passenger area 101 to the outside.

[0040] This application provides an in-vehicle air diversion system that achieves a self-circulation mode for the rear passenger area 101 by setting up independent rear return air duct 2 and rear exhaust air duct 1. In this self-circulation mode, the air in the rear passenger area 101 flows in a closed loop from "rear passenger area 101 - rear return air vent 21 - rear return air duct 2 - air intake filter unit 12 - rear exhaust air duct 1 - rear exhaust air vent 11 - rear passenger area 101", completely detached from the traditional main air duct of the vehicle. When there are pollutants such as smoking or respiratory viruses in the rear passenger area, the pollutants are confined within the rear self-circulation system. That is, harmful substances and virus particles in the smoke enter the return air duct through the rear return air vent 21 and are directly and efficiently intercepted by the air intake filter unit 12. The purified air then flows back to the rear passenger area 101 through the rear exhaust air duct 1. This achieves physical isolation of the front and rear passenger air in a spatial dimension, ensuring a driving environment free from cross-contamination in the front passenger area 102 and reducing driving safety risks.

[0041] By setting up the rear air intake duct 3, the rear air exhaust duct 1, and the rear air exhaust duct 22, an external circulation mode is constructed for the rear area 101. When rear passengers need fresh air, outside air can be directly introduced through the rear air intake duct 3. The air is purified by the air intake filter unit 12 and then delivered to the rear area 101. At the same time, the original polluted air (such as air with high carbon dioxide concentration and local odors) in the rear area 101 is directly discharged to the outside through the independent rear air exhaust duct 22, effectively blocking the mutual interference with the air in the front area 102 and improving the comfort of rear passengers.

[0042] In addition, the switchable design of independent self-circulation mode and external circulation mode in the rear provides more options for the personalized air needs of the rear passengers. It can be equipped with targeted adjustment components in the future, so that rear passengers can adjust the air temperature, wind speed and cleanliness according to their own needs. This breaks the limitations of the traditional overall adjustment mode and realizes the zoned management of the air in the car, which can adapt to the diverse needs of multiple passengers.

[0043] Compared with the prior art, the in-vehicle air diversion system provided in this application, through the coordinated design of the independent self-circulation mode and the switchable external circulation mode of the rear area 101, can effectively block the diffusion of pollution sources from the rear area 101 to the front area 102, ensuring the health of the driver and driving safety, and can also realize the on-demand adjustment of rear air parameters, meeting personalized needs and improving the riding experience of passengers in different areas.

[0044] Furthermore, it's important to understand that in the traditional unified circulation mode, air needs to circulate throughout the entire vehicle interior, resulting in a long circulation path, high energy consumption, and the potential for localized airflow dead zones. In this embodiment, however, the independent self-circulation design for the rear seats allows for rapid filtration and purification of pollution sources in the rear area 101, improving the efficiency of localized air quality improvement. Simultaneously, it reduces airflow losses within the ductwork, helping to lower the system's operating energy consumption.

[0045] Specifically, in this embodiment, the rear exhaust duct 1, rear return air duct 2, rear intake air duct 3, and rear exhaust air duct 22 all use independent pipelines. Physical separation of each air duct is achieved through the vehicle body 10's own structure (such as the floor and the inner cavities of the pillars), and sealing structures such as sealing rings are installed at the connection nodes of each pipeline to ensure no cross-contamination between airflows in different areas. Both the rear return air duct 2 and the rear intake air duct 3 are equipped with electric valves for easy switching of system modes.

[0046] The rear exhaust duct 22 is connected to the main exhaust port at the rear of the vehicle body 10. The main exhaust port of the vehicle body 10 is a one-way exhaust port that can be directly connected to the outside. When the rear area 101 is in external circulation mode, the gas in the rear area 101 is discharged to the outside through the rear exhaust port 221, the rear exhaust duct 22 and the main exhaust port of the vehicle body 10 in sequence.

[0047] The air intake filtration unit 12 includes a rear-row blower 121 and a rear-row filter element 122 connected in sequence. The power of the rear-row blower 121 is adjustable, such as 50-150W, to balance the airflow self-circulation efficiency of the rear area 101 and energy-saving requirements. It is equipped with a communication interface, which can communicate with the vehicle's central control system or the independent rear control panel to adjust parameters. The filtration accuracy of the rear-row filter element 122 is higher than that of the air conditioning filter element at the front of the vehicle. For example, it is a high-efficiency composite filter element of activated carbon and HEPA, which can effectively filter PM2.5, odors and allergens, and can also block the spread of viruses, ensuring purification efficiency.

[0048] The air inlet of the rear air intake duct 3 can be directly installed on the side of the vehicle body 10, providing an independent air intake duct for the rear area 101. The air circulation mode of the rear area 101 is set to self-circulation mode by default. When rear passengers have a need for fresh air, they can switch to external circulation mode. At this time, under the suction of the air intake and filter unit 12, outside air can directly enter the rear area 101 through the air intake on the side of the vehicle body 10, without having to pass through the air conditioning system at the front of the vehicle. This realizes the independent operation of the external circulation mode of the rear area 101 and effectively improves the air circulation efficiency of the rear area 101.

[0049] Optionally, the air intake of the rear air intake duct 3 can also be connected to the main air intake of the vehicle's front air conditioning system, reducing changes to the vehicle body structure 10. In this case, if the rear area 101 requires fresh air, simply ensure the vehicle's air conditioning system is in external circulation mode, and the rear area 101 can be switched to external circulation, using the main air intake duct to provide fresh outside air to the rear area 101. Furthermore, in this configuration, the rear area 101 can still switch back to self-circulation mode, meeting the different air quality needs of rear passengers at different times.

[0050] To facilitate rear passengers in adjusting air parameters according to their own needs, an independent control panel can be installed in the rear area 101 (such as the side of the rear seat). The control panel is equipped with a display screen that shows the current mode, temperature and PM2.5 concentration in real time. Rear passengers can use the control panel to switch the mode (self-circulation / external circulation) of the rear area 101 and adjust parameters such as temperature or air volume.

[0051] For some specific embodiments, see Figure 2 The rear air intake duct 3 is connected to the vehicle's main air intake duct 4, which is equipped with a blower unit 41 for drawing in outside air.

[0052] By connecting the rear air intake duct 3 to the vehicle's main air intake duct 4, this system achieves efficient coordination with the vehicle's existing air conditioning system. This allows for the intake of outside air via the main air intake duct 4, eliminating the need for a separate air intake for the rear air intake duct 3 on the vehicle body 10, thus reducing the structural modifications required for the system. Furthermore, the blower unit 41 of the main air intake duct 4 typically possesses stable airflow control capabilities, providing a continuous and uniform input of outside air to the rear air intake duct 3, ensuring the stability of the fresh air supply in the rear external circulation mode. Moreover, the blower unit 41 is usually equipped with a filter assembly. Outside air entering through the main air intake duct 4 is first filtered by this assembly, and then further filtered by the rear air intake filter unit 12, ensuring the air cleanliness of the rear passenger area 101. This configuration balances the functionality and installation compatibility of the in-vehicle air distribution system.

[0053] See some possible embodiments. Figure 2 , Figure 3 and Figure 4 The rear return air duct 2 is connected to the air intake side of the rear air intake duct 3 via a three-way valve 5. When the three-way valve 5 is in the first state, the rear return air duct 2, the rear air intake duct 3, and the rear exhaust air duct 1 are connected to form a self-circulating airflow in the rear area 101. When the three-way valve 5 is in the second state, the main air intake duct 4, the rear air intake duct 3, and the rear exhaust air duct 1 are connected to supply outside air to the rear area 101 to form an external airflow circulation.

[0054] By installing a three-way valve 5 between the rear return air duct 2 and the rear air intake duct 3 on the air intake side, and assigning it two working states, a more streamlined and efficient rear air circulation control mechanism is constructed: When the three-way valve 5 is in the first state, the rear return air duct 2, the rear air intake duct 3 and the rear exhaust air duct 1 form a closed circuit, allowing the air in the rear area 101 to independently complete the self-circulation of "return air-purification treatment-supply air"; when the three-way valve 5 is switched to the second state, the main air intake duct 4 is connected to the rear air intake duct 3 and the rear exhaust air duct 1, and fresh air from the outside is introduced through the main air intake duct 4, and the original air is discharged to the outside through the rear exhaust duct 22, realizing the external air circulation of the rear area 101.

[0055] In the above settings, the air circulation mode of the rear area 101 can be switched by switching the state of the three-way valve 5. On the one hand, this greatly simplifies the system structure, reduces the number of pipes and control components, reduces hardware costs, installation space occupation and later maintenance difficulty, and adapts to the compact structural layout of the vehicle. On the other hand, the switching response speed is faster (<1s) and reduces the risk of failure that may occur when multiple components are linked, thus improving the efficiency and reliability of circulation mode switching.

[0056] In some embodiments, see Figure 2 The rear air return vent 21 is located between the front area 102 and the rear area 101, and is oriented towards the rear area 101.

[0057] In this embodiment, the rear air duct 1 and the rear air vent 11 are located at the rear of the rear area 101 (such as the C-pillar of the vehicle or the rear side of the rear seats). Meanwhile, the rear air return vent 21 is located between the front area 102 and the rear area 101 (such as the B-pillar of the vehicle or between the two front seats) and is oriented towards the rear area 101, which can accurately meet the functional requirements of rear self-circulation and external circulation.

[0058] On the one hand, the placement of the rear air return vent 21 can minimize the diffusion and return air path of pollutants in the rear. When the air blown out by the rear air vent 11 carries pollutants such as smoke generated in the rear and diffuses forward, it will be directly intercepted by the rear air return vent 21 and drawn into the rear air return duct 2, entering the next cycle. This not only effectively reduces the risk of pollutants spreading to the front, protecting the health and driving safety of the front driver, but also improves the efficiency of air circulation and purification in the rear area 101.

[0059] On the other hand, when the air in the front row area 102 diffuses to the rear row area 101, the rear air return vent 21 located in the middle can also intercept it and draw it into the rear air return duct 2 together with the air in the rear row area 101. After being filtered by the air intake filter unit 12, it is then blown to the rear row area 101, which prevents the odors in the front row area 102 (such as the driver's sweat smell) from directly diffusing to the rear row area 101, thus strengthening the isolation effect between the front and rear rows of air and ensuring the riding experience of rear passengers.

[0060] Furthermore, the main air intake channel 4 is also provided with a central air outlet 6, which is located between the front row area 102 and the rear row area 101 and is oriented towards the front row area 102.

[0061] In this embodiment, the main air intake channel 4 is provided with a front branch channel and a middle branch channel. The front branch channel is provided with a front air outlet facing the front row area 102, and the middle air outlet 6 is provided on the middle branch channel.

[0062] The central air vent 6, positioned facing the front row area 102, creates an airflow barrier between the front and rear rows by blowing air forward. When the driver develops odors such as sweat due to prolonged driving, the odor molecules in the front row area 102 tend to diffuse towards the rear row area 101 under natural convection. However, the forward airflow from the central air vent 6 creates a reverse thrust on the odor-laden air, preventing it from diffusing into the rear row area 101. This avoids rear passengers being passively exposed to odors from the front row and improves their riding experience.

[0063] For example, see Figure 1 Multiple central air outlets 6 and multiple rear air return vents 21 are provided, and the multiple central air outlets 6 and multiple rear air return vents 21 are arranged alternately along the width direction of the vehicle body 10.

[0064] By setting multiple central air outlets 6 and rear air return vents 21 along the width of the vehicle body 10, the central airflow barrier can more evenly cover the entire lateral range of the vehicle body 10, preventing odor leakage in local areas due to insufficient airflow coverage. It also allows the rear air return vents 21 to evenly collect air from all rear positions, preventing local pollution accumulation in the rear area 101, and further ensuring the independence of the front and rear air and the air cleanliness of the rear area 101.

[0065] By alternately setting the central air outlet 6 and the rear air return outlet 21, the problem of airflow being directly drawn into the rear air return outlet 21 and short-circuiting is avoided. This allows the airflow from the central air outlet 6 to effectively block the spread of odors from the front to the rear, ensuring the isolation effect between the front and rear air and ensuring the stability of the system function.

[0066] In addition, by staggering the positions of the central air outlet 6 and the rear return air outlet 21, it is possible to prevent the rear return air outlet 21 from drawing in a large amount of fresh air supplied by the central air outlet 6 instead of polluted air from the rear area 101. This would prevent pollutants from being effectively recovered and filtered during the rear self-circulation process, thus ensuring that the rear return air outlet 21 prioritizes capturing air (such as smoke, viruses, and other pollutants) in the rear area 101, thereby ensuring the purification effect and efficiency of the rear self-circulation.

[0067] Among some possible implementations, see [link to relevant documentation]. Figure 1 or Figure 2 An in-vehicle air diversion system also includes a front exhaust duct 7, which is located inside the vehicle body 10 and has a front exhaust port 71 that communicates with the front area 102. The front exhaust port 71 is located on the front side of the front area 102, and the front exhaust duct 7 is used to exhaust air from the front area 102.

[0068] In this embodiment, when the air in the front row area 102 is in internal recirculation, the front exhaust port 71 is connected to the blower unit 41 on the main air intake channel 4, which is used to draw the air in the front row area 102 into the main air intake channel 4, and after being filtered by the filter assembly, it re-enters the front row area 102 through the front exhaust port 9; when the air in the front row area 102 is in external recirculation, the front exhaust port 71 is connected to the main exhaust port of the vehicle body 10, which is used to exhaust the air in the front row area 102 to the outside.

[0069] By using the front exhaust vent 71 located at the front of the front row area 102, the polluted air such as sweat and food odors generated in the front row area 102 can be guided forward and discharged through the independent front exhaust duct 7, which greatly reduces the diffusion of polluted air from the front row area 102 to the rear row area 101. Moreover, the front exhaust duct 7, by expelling air from the front row area 102 forward, can also optimize the airflow circulation in the front row area 102 to a certain extent, allowing polluted air from the front row area 102 to leave the driving area more quickly, improving the air circulation and renewal efficiency of the front row area 102, further reducing the diffusion of odors from the front row to the rear row area 101, and comprehensively improving the riding experience and health protection of passengers in different areas.

[0070] The independent exhaust of the front exhaust duct 7, in conjunction with the independent exhaust of the rear exhaust duct 22, enables the front area 102 and the rear area 101 to form independent air circulation spaces, ensuring no airflow interaction and further consolidating the airflow isolation effect between the front and rear areas.

[0071] In some embodiments, an exhaust fan 72 is provided on the front exhaust duct 7, and the exhaust fan 72 is used to draw air from the front area 102 into the front exhaust duct 7.

[0072] It should be noted that there are multiple front exhaust ducts 7, and correspondingly multiple front exhaust outlets 71. Several of the front exhaust ducts 7 are connected to the vehicle's air conditioning system, so that the air in the front area 102 can be recirculated by the blower unit 41 on the main air intake channel 4. No additional exhaust fan 72 is required on these front exhaust ducts 7. The other front exhaust ducts 7 are connected to the main exhaust outlet of the vehicle body 10. By adding an exhaust fan 72, the air in the front area 102 can be actively exhausted to the outside.

[0073] The active suction of the exhaust fan 72 can significantly improve the air exhaust efficiency of the front row area 102. Compared with the passive exhaust method that relies on natural convection or unified exhaust of the whole vehicle, the exhaust fan 72 can quickly draw the local polluted air such as sweat and odor in the front row area 102 into the front exhaust duct 7 through the front exhaust port 71 through the negative pressure suction, which significantly shortens the residence time of polluted air in the front row in the vehicle and reduces the possibility of it spreading to the rear row area 101 from the source.

[0074] In addition, the active exhaust of the exhaust fan 72, together with the airflow barrier formed by the central air outlet 6 and the auxiliary suction of the air in the front area 102 by the rear air return vent 21, forms a multi-layer protection system, which more reliably reduces the possibility of air in the front area 102 spreading backward; at the same time, it works in conjunction with the self-circulation mode of the rear area 101 to achieve gas diversion in different areas, ensuring that the air in the front and rear does not interfere with each other, and comprehensively improving the air cleanliness experience and health protection of the passengers in each area.

[0075] For example, see Figure 2 An in-vehicle gas diversion system also includes a gas quality detector 8, which is installed on the vehicle body 10 and is used to detect the air quality in the rear seat area 101.

[0076] The gas quality detector 8 can capture real-time changes in air quality in the rear area 101, such as smoke concentration, PM2.5 value, odor molecule content, CO2 concentration, etc. Since the air circulation mode of the rear area 101 can be set to self-circulation mode by default to ensure air quality in the rear area 101, the gas quality detector 8 will detect when the air quality in the rear area 101 meets the standards (e.g., PM2.5 < 25 μg / m³). 3 When the air intake filter unit 12 is in operation, the power of the rear blower 121 in the air intake filter unit 12 can be automatically reduced or put into standby mode to reduce energy consumption and avoid waste of resources.

[0077] In addition, the gas quality detector 8 can also provide the detected air quality data to the user through the in-vehicle control panel or mobile APP, allowing the user to intuitively understand the air conditions in the rear seat area 101, making the function of the in-vehicle gas diversion system more in line with the user's needs for healthy and intelligent vehicle use.

[0078] Based on the same inventive concept, this application also provides a vehicle including the aforementioned in-vehicle gas diversion system.

[0079] The vehicle provided in this application embodiment includes the aforementioned in-vehicle gas diversion system, and therefore has all the beneficial effects of the aforementioned in-vehicle gas diversion system, which will not be repeated here.

[0080] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A vehicle interior gas distribution system, characterized in that, include: The rear air duct (1) is located inside the vehicle body (10) and has a rear air vent (11) facing the rear row area (101); The air intake and filter unit (12) is connected to the air intake side of the rear exhaust duct (1) on the air outlet side. The rear air return duct (2) is located inside the vehicle body (10) and has a rear air return vent (21) facing the rear area (101). The rear air return duct (2) is connected to the air intake side of the air intake filter unit (12). The rear air intake channel (3) is located inside the vehicle body (10) and connected to the air intake side of the air intake filter unit (12) for introducing outside air; as well as The rear exhaust duct (22) is located inside the vehicle body (10) and has a rear exhaust port (221) communicating with the rear area (101) for discharging air from the rear area (101) to the outside.

2. The in-vehicle gas distribution system as described in claim 1, characterized in that, The rear air intake channel (3) is connected to the vehicle's main air intake channel (4), and the main air intake channel (4) is equipped with a blower unit (41) for drawing in outside air.

3. The in-vehicle gas distribution system as described in claim 2, characterized in that, The rear return air duct (2) is connected to the air inlet side of the rear air inlet duct (3) via a three-way valve (5); When the three-way valve (5) is in the first state, the rear return air channel (2), the rear air inlet channel (3) and the rear exhaust air channel (1) are connected to form a self-circulating airflow in the rear area (101); When the three-way valve (5) is in the second state, the main air intake channel (4), the rear air intake channel (3) and the rear air exhaust channel (1) are connected to supply outside air to the rear area (101) to form an external airflow circulation.

4. The in-vehicle gas distribution system as described in claim 2, characterized in that, The rear air return vent (21) is located between the front area (102) and the rear area (101), and is oriented toward the rear area (101).

5. The in-vehicle gas distribution system as described in claim 4, characterized in that, The main air intake channel (4) is also provided with a central air outlet (6), which is located between the front row area (102) and the rear row area (101) and is oriented towards the front row area (102).

6. The in-vehicle gas distribution system as described in claim 5, characterized in that, The central air outlet (6) and the rear air return outlet (21) are provided in multiple ways, and the multiple central air outlets (6) and the multiple rear air return outlets (21) are arranged alternately along the width direction of the vehicle body (10).

7. The in-vehicle gas distribution system as described in claim 5, characterized in that, The in-vehicle gas distribution system further includes a front exhaust duct (7), which is located inside the vehicle body (10) and has a front exhaust port (71) communicating with the front area (102). The front exhaust port (71) is located on the front side of the front area (102), and the front exhaust duct (7) is used to exhaust air from the front area (102).

8. The in-vehicle gas distribution system as described in claim 7, characterized in that, The front exhaust duct (7) is equipped with an exhaust fan (72), which is used to draw air from the front area (102) into the front exhaust duct (7).

9. The in-vehicle gas distribution system as described in claim 1, characterized in that, The in-vehicle gas diversion system also includes a gas quality detector (8), which is installed on the vehicle body (10) and is used to detect the air quality in the rear row area (101).

10. A vehicle, characterized in that, Including an in-vehicle gas distribution system as described in any one of claims 1-9.

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