Back-row foot blowing air conditioning system and automobile with multiple rows of seats

By adding a foot-blowing air conditioning system to the rear of multi-row seats, including an air conditioning compressor, connecting ducts, and foot-blowing air outlet components, the problem of rear passengers in three-row seats not receiving hot or cold air is solved, achieving a more direct airflow effect and better ride comfort.

CN223948957UActive Publication Date: 2026-02-27ROX MOTOR TECH CO LTD
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Patent Information

Application Number
CN202423321267.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2026-02-27
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

For multi-row vehicles, especially three-row vehicles, the leg and foot areas of rear passengers do not receive sufficient cooling or heating, resulting in a reduced riding experience.

Method used

A foot-blowing air conditioning system is added to the rear of the car, including an air conditioning compressor, air conditioning connection ducts and foot-blowing connection ducts. These ducts direct hot and cold air to the area under the rear seats. Multiple foot-blowing air vents are installed, and sound insulation and sealing components are used at the connection points to reduce noise, ensuring that the duct layout is reasonable and the air delivery is direct.

Benefits of technology

It effectively improves the supply of air conditioning or heating under the rear seats, enhances the air delivery effect, improves passenger comfort, and reduces noise through sound insulation measures, thus enhancing the riding experience.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to a back-row foot blowing air conditioning system and a multi-row seat automobile. The back-row foot blowing air conditioning system comprises an air conditioning compressor, an air conditioning connecting air duct, a foot blowing connecting air duct and a foot blowing air outlet assembly. The air conditioner compressor is arranged above a rear floor of the automobile and on the rear portion of a rear wheel cover, the air conditioner connecting air duct is arranged on the upper portion of the rear wheel cover, one end of the air conditioner connecting air duct is connected with the air conditioner compressor, and the foot blowing connecting air duct is located above the rear floor of the automobile and further arranged between a rear row seat front cross beam and a rear row seat rear cross beam of the automobile. One end of the foot blowing connecting air duct is further connected with the other end of the air conditioner connecting air duct, and the foot blowing air duct of the foot blowing air outlet assembly is arranged on the rear row seat front cross beam in a penetrating mode and connected with the other end of the foot blowing connecting air duct. Foot blowing air ducts can be additionally arranged on the back row of the automobile, the comfort level of passengers is improved, and meanwhile it can be guaranteed that air conditioner installation and air duct arrangement are more reasonable.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile air conditioning, in particular to a rear-row foot-blowing air conditioning system and a multi-row seat automobile. BACKGROUND

[0002] With the rapid development of automobile products, consumers have higher and higher requirements for the comfort of automobiles. The automobile air conditioning system improves the comfort of passengers, and the foot-blowing air duct is an important component of the automobile air conditioning duct system. Its function is to send cold or warm air from the air conditioner to the rear-row foot space in the vehicle, so as to achieve the purpose of cooling or heating the legs and feet of the rear-row passengers.

[0003] At present, the general rear-row foot-blowing air duct is arranged below the main and auxiliary driver seats, which can meet the air conditioning needs of the second-row passengers. However, for a multi-row seat automobile, such as a three-row seat automobile, due to the partition of the front-row seats, the area where the legs and feet of the passengers in the third row are located cannot be fully cooled or warmed, thereby reducing the passenger's ride experience. CONTENT OF THE INVENTION

[0004] The purpose of the present application is to provide a rear-row foot-blowing air conditioning system and a multi-row seat automobile, which can increase the foot-blowing air duct in the rear row of the automobile and improve the comfort of passengers.

[0005] In order to achieve the above-mentioned purpose, in a first aspect, the present application provides a rear-row foot-blowing air conditioning system applied to a three-row seat automobile, which comprises an air conditioner compressor, an air conditioner connecting air duct, a foot-blowing connecting air duct and a foot-blowing air outlet assembly. The air conditioner compressor is arranged above the rear floor of the automobile and at the rear of the rear wheel cover. The air conditioner connecting air duct is arranged at the upper part of the rear wheel cover and connected to one end of the air conditioner compressor. The foot-blowing connecting air duct is arranged above the rear floor of the automobile and between the front cross beam of the rear-row seat and the rear cross beam of the rear-row seat of the automobile. One end of the foot-blowing connecting air duct is also connected to the other end of the air conditioner connecting air duct. The foot-blowing air duct of the foot-blowing air outlet assembly is arranged through the front cross beam of the rear-row seat and connected to the other end of the foot-blowing connecting air duct.

[0006] In a possible implementation, the foot-blowing air duct is provided in plurality and the number thereof matches the number of the rear-row seats in the third row of the automobile.

[0007] In possible implementation manners, the sound insulation sealing assembly is arranged at the connection position of each component in the air conditioning system, and the connection position includes the connection position of the air conditioning compressor and the air conditioning connection air duct, the connection position of the air conditioning connection air duct and the foot blowing connection air duct, and the connection position of the foot blowing connection air duct and the foot blowing air duct.

[0008] In possible implementation manners, the sound insulation sealing assembly includes a first sealing structure arranged at the connection position of the air conditioning compressor and the air conditioning connection air duct, and the shape and size of the first sealing structure are matched with the shape and size of the connection position.

[0009] In possible implementation manners, the sound insulation sealing assembly includes a second sealing structure arranged at the connection position of the air conditioning connection air duct and the foot blowing connection air duct, and the shape and size of the second sealing structure are matched with the shape and size of the connection position.

[0010] In possible implementation manners, the sound insulation sealing assembly includes a third sealing structure arranged at the connection position of the foot blowing connection air duct and the foot blowing air duct, and the shape and size of the third sealing structure are matched with the shape and size of the connection position.

[0011] In possible implementation manners, the sound insulation sealing assembly includes a first sound insulation structure arranged above the air conditioning connection air duct, and the sound insulation sealing assembly includes a second sound insulation structure arranged above the foot blowing connection air duct.

[0012] In possible implementation manners, the sound insulation sealing assembly includes a third sound insulation structure arranged on the side of the foot blowing connection air duct facing the rear seat rear cross beam.

[0013] In possible implementation manners, a ventilation grille is arranged at the air outlet of the foot blowing air duct, and the ventilation grille is located above the rear floor and in front of the front cross beam of the rear seat.

[0014] In a second aspect, the utility model provides a multi-row seat automobile which is provided with three rows of seats and the air conditioning system in any of the above embodiments.

[0015] By setting the rear row foot blowing air conditioning system on the third row seat, the space of the rear row can be ensured to obtain sufficient cold air or warm air, and the foot blowing air conditioning system can be directly installed on the rear row seat. Compared with the existing air duct branch extending from the integrated air conditioning compressor to the rear row seat, the inside space of the rear row seat can be effectively utilized, the installation of the air conditioner and the arrangement of the air duct are more reasonable, the air supply path is reduced, the blowing effect of the rear row seat is enhanced, and efficient and convenient air supply can be ensured.

[0016] The rear row foot blowing air conditioning system includes an air conditioning compressor, an air conditioning connecting air duct, a foot blowing connecting air duct and a foot blowing air outlet assembly, which constitute the main functional components of the rear row foot blowing air conditioning system. By arranging a plurality of foot blowing air outlet assemblies under the rear row seat, the feet under the rear row seat can be directly blown.

[0017] The foot blowing air duct connected with the foot blowing connecting air duct can be used to guide the cold or hot air generated by the air conditioning compressor, and then directly output the foot blowing air, thereby improving the comfort of passengers.

[0018] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0020] Figure 1 It is an installation structure diagram of the rear row foot blowing air conditioning system in the present application on the rear row seat;

[0021] Figure 2 It is a component structure diagram of the rear row foot blowing air conditioning system in the present application;

[0022] Figure 3 It is an installation structure diagram of the foot blowing air duct in the present application on the rear row seat;

[0023] Figure 4 It is an installation structure diagram of the ventilation grille in the present application on the rear row seat.

[0024] FIG.

[0025] 1-air conditioning compressor;

[0026] 2-air conditioning connecting air duct;

[0027] 3 - foot air outlet connecting air duct;

[0028] 4 - foot air outlet air duct; 41 - first foot air outlet air duct; 42 - second foot air outlet air duct;

[0029] 5 - rear floor assembly; 51 - rear floor;

[0030] 6 - rear wheelhouse; 61 - wheelhouse fender;

[0031] 7 - connecting fin; 71 - first connecting fin; 72 - second connecting fin; 73 - third connecting fin;

[0032] 8 - rear seat; 81 - rear seat rear cross beam; 82 - rear seat front cross beam;

[0033] 9 - second sound insulation structure; 10 - first sound insulation structure; 11 - first sealing structure; 12 - second sealing structure; 13 - third sealing structure; 14 - fourth sealing structure; 15 - third sound insulation structure;

[0034] 20 - first ventilation grille; 21 - second ventilation grille; 22 - carpet. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0036] In the description of the present application, it should be noted that the positions or location relationships indicated by the terms "inner", "outer" and the like are based on the positions or location relationships shown in the drawings, or the positions or location relationships commonly placed when the products of the present application are used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated devices or elements must have a particular position, be constructed and operated in a particular position, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "provided", "connected" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium; can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] The rear row foot blowing air conditioning system and the multi-row seat automobile in the application are mainly used for improving the foot blowing air outlet condition of the rear row seat in the third row. The rear row foot blowing air conditioning system is installed at the rear row seat position. The internal space of the rear row seat can be fully utilized. The installation of the air conditioning compressor and the layout of the air duct pipeline are more reasonable. The foot blowing air outlet is more direct. The foot blowing demand of the foot position below the rear row seat is met. The riding experience comfort of the passenger is improved.

[0039] Referring to Figure 1 , in combination with Figures 2-4 , the rear row foot blowing air conditioning system in the application is arranged on the rear row seat 8 in the third row. The rear row foot blowing air conditioning system is mainly used for blowing air below the rear row seat 8.

[0040] The rear row foot blowing air conditioning system comprises an air conditioning compressor 1, an air conditioning connecting air duct 2, a foot blowing connecting air duct 3 and not less than two groups of foot blowing air outlet assemblies which are sequentially arranged and connected in sequence. The cold and hot air generated by the air conditioning compressor 1 can be discharged.

[0041] The air conditioning compressor 1 is arranged above the rear floor 51 of the automobile and at the rear part of the rear wheel cover 6. The air conditioning connecting air duct 2 is arranged at the upper part of the rear wheel cover 6 and one end of the air conditioning connecting air duct 2 is connected with the air conditioning compressor 1. The foot blowing connecting air duct 3 is arranged above the rear floor 51 of the automobile and is further arranged between the front transverse beam 82 of the rear row seat and the rear transverse beam 81 of the rear row seat of the automobile. One end of the foot blowing connecting air duct 3 is further connected with the other end of the air conditioning connecting air duct 2. The foot blowing air duct 4 of the foot blowing air outlet assembly is arranged through the front transverse beam 82 of the rear row seat and is connected with the other end of the foot blowing connecting air duct 3.

[0042] In order to more clearly illustrate the foot blowing air outlet assembly, the foot blowing air outlet assembly in the application comprises two groups, including two groups of foot blowing air outlet assemblies arranged on the left and right sides.

[0043] In the possible embodiment, the foot blowing air duct 4 is provided with a plurality of foot blowing air ducts 4 and the number of the foot blowing air ducts 4 matches the number of the rear row seat in the third row of the automobile. For example, the third row seat (the last row seat) is two seats. The number of the foot blowing air ducts 4 can be two. Two groups of foot blowing air outlet assemblies are arranged below the rear row seat 8. In combination with the foot blowing air ducts 4 connected with the foot blowing connecting air duct 3 included in the two groups of foot blowing air outlet assemblies, the foot blowing air output through the above different air ducts in sequence can be discharged. The air outlet state below the rear row seat 8 is formed. The air outlet effect is improved on the premise of reasonable layout of the air duct.

[0044] From the installation angle of basic function structure, in one of the specific embodiments, the air conditioner compressor 1 is arranged above the rear part of the rear floor 51 and the rear part of the rear wheel cover 6, by directly installing the air conditioner compressor 1 at the rear part of the automobile, the foot blowing air output of the rear seat 8 can be directly corresponded, and the foot blowing air output is more direct.

[0045] The air conditioner connecting air duct 2 is used for outputting the cold and hot air blown out by the air conditioner compressor 1, by connecting the air conditioner connecting air duct 2 with the air conditioner compressor 1, the cold and hot air can be transported and discharged.

[0046] Further, the foot blowing connecting air duct 3 is mainly used for receiving the cold and hot air blown out from the air conditioner compressor 1 by the air conditioner connecting air duct 2 and transferring the cold and hot air to the downstream foot blowing air duct 4, by connecting the foot blowing connecting air duct 3 with the air conditioner connecting air duct 2, the function of the above-mentioned transfer can be realized.

[0047] Based on the above-mentioned foot blowing air outlet assembly including two groups, the foot blowing air duct 4 includes the first foot blowing air duct 41 and the second foot blowing air duct 42 arranged at intervals, and correspondingly, the first foot blowing air duct 41 and the second foot blowing air duct 42 are arranged corresponding to the seats on the left and right sides of the rear seat 8, so that the independent air output in the interval state can be realized, and the coverage space of the foot blowing air is increased.

[0048] By connecting the first foot blowing air duct 41 and the second foot blowing air duct 42 with the foot blowing connecting air duct 3 respectively, two foot blowing air outlets are formed, and the foot blowing air can be blown to the lower part of the rear seat 8 through the formed foot blowing air outlets, so that the air output effect of the rear seat 8 area is improved.

[0049] From the installation angle, the air conditioner connecting air duct 2 is fixed on the upper part of the rear wheel cover 6, and one part of the foot blowing connecting air duct 3 is fixed on the rear seat rear cross beam 81 through the connecting fin 7, and the other part is fixed on the rear floor 51 through the connecting fin 7.

[0050] Through the above-mentioned connection and installation form, the air conditioner connecting air duct 2 and the foot blowing connecting air duct 3 can be fixed, it should be pointed out that the foot blowing connecting air duct 3 is an L-shaped bending air duct with a certain width, based on the fixation of the air conditioner connecting air duct 2 on the upper part of the rear wheel cover 6, by connecting the foot blowing connecting air duct 3 with the air conditioner connecting air duct 2, the upper part of the foot blowing connecting air duct 3 can be fixed.

[0051] At the same time, by arranging at least two connecting fins 7 on the horizontal part of the foot blowing connecting air duct 3, two connecting fixed points of the foot blowing connecting air duct 3 can be realized, further, the connecting fin 7 includes the first connecting fin 71 and the second connecting fin 72.

[0052] Specifically, the first connecting fin 71 is arranged at the top rear side of the foot blowing connecting air duct 3, and the second connecting fin 72 is arranged at the bottom front side of the foot blowing connecting air duct 3. Further, by arranging the first connecting fin 71 and the second connecting fin 72 at both sides of the foot blowing connecting air duct 3 in the width direction and spacing them in the horizontal length direction, the first connecting fin 71 can be connected to the rear seat rear beam 81, and the second connecting fin 72 can be connected to the rear floor 51, thereby stably and reliably installing and fixing the foot blowing connecting air duct 3. The third connecting fin 73 is arranged at the side of the foot blowing connecting air duct 3, and the third connecting fin 73 can be connected to the rear floor 51.

[0053] In order to have good sound insulation effect, sound insulation sealing assemblies are arranged at the connection of each component in the air conditioning system and the noise concentration position. The connection includes the connection of the air conditioning compressor 1 and the air conditioning connecting air duct 2, the connection of the air conditioning connecting air duct 2 and the foot blowing connecting air duct 3, and the connection of the foot blowing connecting air duct 3 and the foot blowing air duct 4. The noise concentration position includes the upper part of the air conditioning connecting air duct 2, the upper part of the foot blowing connecting air duct 3, and the side of the foot blowing connecting air duct 3 facing the rear seat rear beam 81. The noise generated during the operation of the air conditioning compressor 1 can be effectively absorbed, and the riding experience of passengers can be improved.

[0054] In another specific embodiment, in order to reduce the noise during the operation of the air conditioning compressor 1 and the air supply process, the upper part of the air conditioning connecting air duct 2 is covered with a first sound insulation structure 10, which can isolate the noise during the operation of the air conditioning compressor 1 and the air supply process of the air conditioning connecting air duct 2.

[0055] The upper part of the foot blowing connecting air duct 3 is covered with a second sound insulation structure 9, which can isolate the noise during the air supply process of the foot blowing connecting air duct 3. The side of the foot blowing connecting air duct 3 facing the rear seat rear beam 81 is covered with a first sealing structure 15, thereby achieving the overall noise reduction and sound insulation function and improving the riding experience.

[0056] In order to improve the sealing performance during the air supply process, sealing structures are arranged at the connection parts between different air ducts.

[0057] Specifically, the first sealing structure 11 is arranged at the connection part between the air conditioning compressor 1 and the air conditioning connecting air duct 2, the second sealing structure 12 is arranged at the connection part between the air conditioning connecting air duct 2 and the foot blowing connecting air duct 3, the third sealing structure 13 is arranged at the connection part between the first foot blowing air duct 41 and the foot blowing connecting air duct 3, and the fourth sealing structure 14 is arranged at the connection part between the second foot blowing air duct 42 and the foot blowing connecting air duct 3. The sealing cotton short sections at the above-mentioned different parts ensure the sealing connection between different air ducts.

[0058] As a preferred embodiment, the first sealing structure 11, the second sealing structure 12, the third sealing structure 13 and the fourth sealing structure 14 are short section sealing cotton, which can play a good sealing and effectively avoid air leakage at the connection of each component.

[0059] As a preferred embodiment, the first sound insulation structure 10, the second sound insulation structure 9 and the third sound insulation structure 15 are respectively arranged at the vibration concentration position, i.e. the area where the air conditioner compressor is most likely to resonate. The first sound insulation structure 10, the second sound insulation structure 9 and the third sound insulation structure 15 are long pieces of sealing cotton, which can be covered on the top surface or side surface of the air conditioner connecting air duct 2 and the foot blowing air duct 3. The first sound insulation structure 10, the second sound insulation structure 9 and the third sound insulation structure 15 can effectively absorb the vibration generated by the air conditioner compressor 1, reduce the noise caused by vibration, and improve the riding experience of passengers.

[0060] In one preferred embodiment, from the perspective of the air outlet structure, the first foot blowing air duct 41 and the second foot blowing air duct 42 respectively pass through the front cross beam 82 of the rear seat and are fixed in front of the front cross beam 82 of the rear seat.

[0061] Further, the first foot blowing air duct 41 and the second foot blowing air duct 42 in the embodiment respectively pass through the middle of the height direction of the front cross beam 82 of the rear seat and are fixedly connected with the air vent grilles below the rear seat 8, so as to realize the fixed connection of the foot blowing air duct 4 and the air vent grilles.

[0062] The air vent grilles, as the outermost structure of the air outlet, are used for the connection and installation of the foot blowing air duct 4 on one hand, and on the other hand, they can prevent large particles from entering the foot blowing air duct 4. Specifically, the air vent grilles include a first air vent grille 20 and a second air vent grille 21, which correspond to the foot blowing air duct 4 respectively.

[0063] The carpet 22 is arranged at the lower part of the rear seat 8 and is fixedly arranged on the automobile rear floor assembly 5. The first air vent grille 20 and the second air vent grille 21 are arranged in front of the foot blowing air duct 4 and are press-fitted and fixed on the carpet 22, so as to complete the fixation of different air vent grilles and the foot blowing air duct 4.

[0064] In the embodiment, the wheel cover guard 61 is arranged at both sides of the rear seat 8. The air conditioner compressor 1 and the air conditioner connecting air duct 2 are arranged at the inner side of the wheel cover guard 61, so as to realize the hidden installation of the air conditioner compressor 1 and the air conditioner connecting air duct 2.

[0065] In order to realize the hidden fixation and installation of the foot blowing air duct 3, one part of the foot blowing air duct 3 is arranged at the inner side of the wheel cover guard 61, and the other part is arranged at the inner side of the lower part of the rear seat 8.

[0066] Combined with the fixed connection structure of the blow foot connecting air duct 3 described above, the blow foot connecting air duct 3 can be effectively and reliably installed in the wheel cover guard 61 and the inner side of the rear row seat 8.

[0067] The utility model further provides a multi-row seat automobile including the rear row blow foot air conditioning system described above, can improve the quality of car, improve the riding experience of passenger.

[0068] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0069] The above is only the preferred embodiment of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A rear-row foot-blowing air conditioning system, characterized by comprising: The air conditioning system is applied to a car with three rows of seats, and comprises an air conditioning compressor, an air conditioning connecting air duct, a foot blowing connecting air duct and a foot blowing air outlet assembly; the air conditioning compressor is arranged above a rear floor and at a rear part of a rear wheel cover of the car; the air conditioning connecting air duct is arranged at an upper part of the rear wheel cover and connected with the air conditioning compressor at one end; the foot blowing connecting air duct is arranged above the rear floor and between a front transverse beam of rear seats and a rear transverse beam of the rear seats of the car, and connected with the other end of the air conditioning connecting air duct at one end; and the foot blowing air duct of the foot blowing air outlet assembly is arranged through the front transverse beam of the rear seats and connected with the other end of the foot blowing connecting air duct.

2. The rear foot air conditioning system according to claim 1, wherein The foot blowing air ducts are arranged in multiple and in a number matching the number of the rear seats of the third row of the car.

3. The rear foot air conditioning system according to claim 1, wherein The connecting parts of the components in the air conditioning system and noise concentration parts are respectively provided with sound insulation sealing assemblies; the connecting parts include the connecting part of the air conditioning compressor and the air conditioning connecting air duct, the connecting part of the air conditioning connecting air duct and the foot blowing connecting air duct, and the connecting part of the foot blowing connecting air duct and the foot blowing air duct; and the noise concentration parts include the upper part of the air conditioning connecting air duct, the upper part of the foot blowing connecting air duct and the side of the foot blowing connecting air duct facing the rear transverse beam of the rear seats.

4. The rear foot air conditioning system according to claim 3, wherein The sound insulation sealing assembly comprises a first sealing structure arranged at the connecting part of the air conditioning compressor and the air conditioning connecting air duct, and the shape and size of the first sealing structure match those of the connecting part.

5. The rear foot air conditioning system according to claim 3, wherein The sound insulation sealing assembly comprises a second sealing structure arranged at the connecting part of the air conditioning connecting air duct and the foot blowing connecting air duct, and the shape and size of the second sealing structure match those of the connecting part.

6. The rear foot air conditioning system according to claim 3, wherein The sound insulation sealing assembly comprises a third sealing structure arranged at the connecting part of the foot blowing connecting air duct and the foot blowing air duct, and the shape and size of the third sealing structure match those of the connecting part.

7. The rear foot air conditioning system according to claim 3, wherein The sound insulation sealing assembly comprises a first sound insulation structure arranged above the air conditioning connecting air duct; and the sound insulation sealing assembly comprises a second sound insulation structure arranged above the foot blowing connecting air duct.

8. The rear foot air conditioning system according to claim 3, wherein The sound insulation sealing assembly comprises a third sound insulation structure arranged on the side of the foot blowing connecting air duct facing the rear transverse beam of the rear seats.

9. The rear foot air conditioning system according to claim 1, wherein A ventilation grille is arranged at an air outlet of the foot blowing air duct, and the ventilation grille is arranged above the rear floor and at the front part of the front transverse beam of the rear seats.

10. A multi-row seating vehicle, characterized by comprising: The car is provided with three rows of seats and the air conditioning system according to any one of claims 1 to 9.