Air guide mechanism applied to automobile seat ventilation system and automobile seat

Abstract

An air guide mechanism applied to an automobile seat ventilation system and an automobile seat. The air guide mechanism comprises seat foam (1) provided with a first mounting recess (111), an air guide bag body (2) and first ventilation hole channels (102) penetrating through the seat foam (1) being provided in the first mounting recess (111). The air guide bag body (2) comprises an air guide pressure-bearing layer (201) and a bag body surface layer having a sealing layer (202) and an air distribution layer (203), the air distribution layer (203) being provided with air distribution openings (231) corresponding to the first ventilation hole channels (102), and the first ventilation hole channels (102) being in communication with the air guide bag body (2) so as to form a main air guide path. Extension recesses (4) which comprise second ventilation hole channels (401) are in communication with the first mounting recess (111), an extension sealing layer (3) being arranged corresponding to the extension recesses (4) so as to form an extension air guide path. A communication path communicates the air guide bag body (2) and the extension recesses (4). An air driving component drives air on a seat surface to flow by means of the main air guide path, the extension air guide path, and the communication path.

Description

Air guide mechanism used in automobile seat ventilation system and automobile seat

[0001] Cross-references to related publications

[0002] This disclosure claims priority to Chinese patent application number 202310917037.X filed with the Patent Office of China on July 25, 2023, entitled “A wind guide mechanism and a car seat used in a car seat ventilation system,” the entire contents of which are incorporated by reference into this disclosure. Technical Field

[0003] The present disclosure relates to the technical field of automobile seats, and in particular to an air guide mechanism applied to an automobile seat ventilation system and an automobile seat. Background Art

[0004] With the continuous development of automobile technology, users spend more and more time in cars, and the concept of treating cars as home is gradually being recognized by people. How to create a more comfortable riding environment in the car, especially how to effectively create a cool environment for the contact points between the human body and the car seats in the hot summer, is an issue that people are paying more and more attention to.

[0005] In recent years, the comfort system using seat air conditioning and ventilation devices has gradually been recognized by the market as a high-end application of vehicle comfort technology; the layout of structures such as grooves or frames in car seats compresses the layout space of ventilation components, making the ventilation area smaller and affecting the ventilation effect.

[0006] Public content

[0007] In view of the above-mentioned defects or deficiencies in the prior art, the present disclosure aims to provide an air guide mechanism for a vehicle seat ventilation system and a vehicle seat.

[0008] In a first aspect, the present disclosure provides an air guide mechanism for a vehicle seat ventilation system, comprising:

[0009] The seat foam includes a first mounting surface, the first mounting surface being the side of the seat foam away from a person sitting on it, a first mounting groove being provided on the first mounting surface, the opening of the first mounting groove being oriented toward a side away from the person sitting on it, and a plurality of first ventilation channels being provided in the first mounting groove and penetrating the seat foam;

[0010] An air guide sac, the air guide sac being arranged in the first mounting groove; the air guide sac comprising a sac surface layer and an air guide pressure-bearing layer, the sac surface layer comprising a sealing layer and an air distribution layer, the air guide pressure-bearing layer being arranged between the sealing layer and the air distribution layer, the air distribution layer being provided with a plurality of air distribution ports corresponding to each of the first ventilation channels, the air distribution layer being arranged adjacent to the top surface of the first mounting groove; the first ventilation channels being connected to the air guide sac to form a main air flow passage;

[0011] An air drive assembly, the air drive assembly being in communication with the air guide bag and configured to drive the air guide mechanism to guide the air;

[0012] an extended sealing layer connected to the surface layer of the air guide bag;

[0013] an extended groove, the extended groove being provided on at least one side of the first mounting groove and communicating with the first mounting groove, the extended groove defining at least one second ventilation channel penetrating the seat foam, the extended sealing layer being provided corresponding to and covering the extended groove, thereby forming an extended air guide passage;

[0014] a communication path configured to connect the air guide bag to the extension groove;

[0015] When the air driving assembly is working, the air on the seat surface flows through the main air guide passage, the extended air guide passage, and the communication path.

[0016] According to the technical solution provided by the embodiment of the present disclosure, there are multiple extension grooves, and the multiple extension grooves are arranged on any side of the first installation groove or distributed on different sides of the first installation groove.

[0017] According to the technical solution provided in the embodiment of the present disclosure, at least one side of the air guide bag is provided with at least one first opening, and the air guide bag is connected with the extension groove through the first opening to form the communication path.

[0018] According to the technical solution provided in the embodiment of the present disclosure, the communication path is a communication channel between the first ventilation channel and the second ventilation channel.

[0019] According to the technical solution provided in the embodiment of the present disclosure, it also includes an extended wind-guiding pressure-bearing layer; the extended wind-guiding pressure-bearing layer is arranged in the extended groove.

[0020] According to the technical solution provided by the embodiment of the present disclosure, the communication path is the extended air-guiding pressure-bearing layer connected to the air-guiding pressure-bearing layer of the air-guiding sac;

[0021] The surface layer of the air guide bag wraps the extended air guide pressure bearing layer, and the air distribution layer is provided with an air guide opening corresponding to the extended groove.

[0022] According to the technical solution provided in an embodiment of the present disclosure, at least one foaming protrusion is provided between the extension groove and the first installation groove, and the foaming protrusion is configured to support the extension sealing layer.

[0023] According to the technical solution provided in the embodiment of the present disclosure, the foaming protrusion and the seat foam are integrated.

[0024] According to the technical solution provided by the embodiment of the present disclosure, the extended sealing layer is obtained by extending the surface layer of the air guide bag.

[0025] According to the technical solution provided in the embodiment of the present disclosure, the extended sealing layer and the air guide sac are integrated; or the extended sealing layer and the air guide sac are separated.

[0026] According to the technical solution provided by the embodiment of the present disclosure, an adhesive layer is provided between the air distribution layer and the first mounting groove, and the adhesive layer is configured to seal and fix the air guide bag and the first mounting groove.

[0027] According to the technical solution provided by the embodiment of the present disclosure, an extended adhesive layer is provided between the extended sealing layer and the extended groove, and the extended adhesive layer is configured to seal and fix the extended sealing layer and the extended groove.

[0028] According to the technical solution provided by the embodiment of the present disclosure, the extended adhesive layer is adhered to the extended adhesive layer adhering area.

[0029] According to the technical solution provided by the embodiment of the present disclosure, the extended sealing layer completely covers the extended groove;

[0030] The extended adhesive layer covers the top surface of the extended groove, and the extended sealing layer is adhered to the extended adhesive layer adhesion area by the extended adhesive layer to be sealed and fixed to the periphery of the extended groove.

[0031] In a second aspect, the present disclosure provides a car seat, which includes the above-mentioned air guide mechanism applied to the car seat ventilation system.

[0032] In summary, the present disclosure proposes an air guide mechanism and an automobile seat applied to a ventilation system of an automobile seat, the air guide mechanism including a seat foam of a first mounting groove, an air guide sac and a first ventilation channel penetrating the seat foam provided in the first mounting groove; the air guide sac including an air guide pressure-bearing layer and a sac surface layer having a sealing layer and an air distribution layer, the air distribution layer being provided with an air distribution port corresponding to the first ventilation channel, the first ventilation channel being connected to the air guide sac to form a main air passage; an extended groove including a second ventilation channel being connected to the first mounting groove, the extended sealing layer and the extended groove being provided correspondingly to form an extended air guide passage; a connecting path connecting the air guide sac and the extended groove, the air drive component driving the seat surface air to circulate through the main air passage, the extended air guide passage and the connecting path; by arranging the extended groove and the extended sealing layer, the ventilation area of ​​the automobile seat is extended, the ventilation area of ​​the automobile seat ventilation system is expanded, and the ventilation effect is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] FIG1 is a front view of the air guide mechanism provided by an embodiment of the present disclosure when the air guide bag is not installed and the extension groove is opened on one side of the first installation groove;

[0034] FIG2 is a front view of the air guide mechanism provided by an embodiment of the present disclosure when the air guide bag is installed and the extension groove is opened on one side of the first installation groove;

[0035] FIG3 is a front view of the air guide mechanism provided by an embodiment of the present disclosure when the air guide bag is not installed and the extension grooves are formed on both sides of the first installation groove;

[0036] FIG4 is a cross-sectional view of the air guide mechanism provided by an embodiment of the present disclosure when the air guide bag is installed and the extension grooves are formed on both sides of the first installation groove;

[0037] FIG5 is a structural schematic diagram of the air guide mechanism provided by an embodiment of the present disclosure when the air guide bag is not installed and the extension grooves are provided on both sides of the first installation groove;

[0038] FIG6 is a front view of the air guide mechanism provided by an embodiment of the present disclosure when the air guide sac is not installed, the extension grooves are formed on both sides of the first installation groove, the foaming grooves are provided, and the second ventilation channels are interconnected;

[0039] FIG7 is a side cross-sectional view of the air guide mechanism provided by an embodiment of the present disclosure, in which an air guide bag is installed, extension grooves are formed on both sides of the first installation groove, foaming grooves are provided, and second ventilation channels are interconnected;

[0040] FIG8 is a schematic structural diagram of an air guide mechanism provided by an embodiment of the present disclosure, in which an air guide sac is not installed, an extension groove is provided on both sides of a first installation groove, the second ventilation channels are interconnected, and a foaming protrusion is provided between the extension groove and the first installation groove, and an extended adhesive layer is provided on all sides;

[0041] FIG9 is a front view of the air guide mechanism provided by an embodiment of the present disclosure when the air guide bag is not installed and the extended groove is connected to the second ventilation channel;

[0042] FIG10 is a side view of the air guide mechanism provided by an embodiment of the present disclosure when the air guide bag is not installed and the extended groove is connected to the second ventilation channel;

[0043] FIG11 is a structural schematic diagram of the air guide mechanism provided by an embodiment of the present disclosure when the air guide bag is installed and the extended groove is connected to the second ventilation channel;

[0044] FIG12 is an exploded view of the air guide mechanism after the air guide bag is installed in the first installation groove when the extended groove is connected to the second ventilation channel according to an embodiment of the present disclosure;

[0045] FIG13 is a front view of the air guide mechanism provided by an embodiment of the present disclosure when the air guide bag is not installed and the extension groove is opened on each side of the first installation groove;

[0046] FIG14 is a structural schematic diagram of the air guide mechanism provided in an embodiment of the present disclosure when the air guide bag is not installed and the extension groove is provided on each side of the first installation groove;

[0047] FIG15 is a front view of the air guide mechanism provided in an embodiment of the present disclosure when the air guide sac is not installed, the extension groove is formed on each side of the first installation groove, a foaming protrusion is provided, and the second ventilation channels are interconnected;

[0048] FIG16 is a schematic structural diagram of the air guide mechanism provided in an embodiment of the present disclosure when the air guide sac is not installed, the extension groove is formed on each side of the first installation groove, a foaming protrusion is provided, and the second ventilation channels are interconnected;

[0049] FIG17 is an exploded view of an air guide bag without a first opening provided by an embodiment of the present disclosure;

[0050] FIG18 is an exploded view of an air guide bag with a first opening provided in an embodiment of the present disclosure.

[0051] The text labels in the figure are as follows: 1. Seat foam; 101. First mounting surface; 111. First mounting groove; 102. First ventilation duct; 103. Foaming protrusion; 2. Air guide bag; 201. Air guide pressure bearing layer; 202. Sealing layer; 203. Air distribution layer; 231. Air distribution port; 204. Adhesive layer; 205. Protective layer; 3. Extended sealing layer; 4. Extended groove; 401, second ventilation duct; 5. Extended adhesive layer pasting area; 6. Extended adhesive layer; 7. Extended air guide pressure bearing layer; 8. First opening. DETAILED DESCRIPTION

[0052] The present disclosure is described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the relevant disclosure and are not intended to limit the disclosure. It should also be noted that, for ease of description, only portions relevant to the disclosure are shown in the accompanying drawings.

[0053] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in the present disclosure may be combined with each other. The present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0054] As mentioned in the background art, in order to solve the problems in the prior art, the present disclosure proposes an air guide mechanism for a ventilation system of an automobile seat and an automobile seat.

[0055] 1 , this embodiment proposes an air guide mechanism for a vehicle seat ventilation system, comprising:

[0056] The seat foam 1 includes a first mounting surface 101, which is the side of the seat foam 1 facing away from the human body. The first mounting surface 101 is provided with a first mounting groove 111, with the opening of the first mounting groove 111 facing away from the human body. The first mounting groove 111 is provided with a plurality of first ventilation channels 102 extending through the seat foam 1.

[0057] The air guide sac 2 is arranged in the first mounting groove 111; the air guide sac 2 includes a sac surface layer and an air guide pressure-bearing layer 201, the sac surface layer includes a sealing layer 202 and an air distribution layer 203, the air guide pressure-bearing layer 201 is arranged between the sealing layer 202 and the air distribution layer 203, the air distribution layer 203 is provided with a plurality of air distribution ports 231 corresponding to each first ventilation channel 102, and the air distribution layer 203 is arranged adjacent to the top surface of the first mounting groove 111; the first ventilation channel 102 is connected to the air guide sac 2 to form a main air flow passage;

[0058] An air drive assembly, the air drive assembly is in communication with the air guide bag 2 and is configured to drive the air guide mechanism to guide the air;

[0059] An extended sealing layer 3 is connected to the surface layer of the air guide bag 2;

[0060] An extended groove 4 is provided on at least one side of the first mounting groove 111 and is in communication with the first mounting groove 111. The extended groove 4 defines at least one second ventilation channel 401 that penetrates the seat foam 1. The extended sealing layer 3 is disposed corresponding to and covers the extended groove 4, forming an extended air guide passage.

[0061] a communication path, the communication path being configured to connect the air guide bladder 2 with the extension groove 4;

[0062] When the air drive assembly is working, the air flow on the seat surface is achieved through the main air guide passage, the extended air guide passage, and the connecting path.

[0063] Optionally, the air guide bag 2 is a ventilation bag, the extended sealing layer 3 is a ventilation bag tail curtain, the air guide bag 2 is pasted in the first mounting groove 111, and the extended sealing layer 3 can be pasted around the top of the extended groove 4, completely covering the extended groove 4; the air guide pressure bearing layer 201 is arranged between the sealing layer 202 and the air distribution layer 203, and the sealing layer 202 and the air distribution layer 203 are welded on all four sides.

[0064] Optionally, the air drive assembly (not shown) is a fan, and the air drive assembly is located on the side of the air guide sac 2 away from the human body. When the fan blows air into the car seat, the fan outlet communicates with the air guide sac 2. A portion of the air blown out from the fan outlet flows sequentially through the air guide pressure-bearing layer 201, the connecting path, and the extended air guide path into the car seat, achieving air flow on the seat surface. Another portion flows through the main air path into the car seat, achieving air flow on the seat surface. When the fan is drawing air, the fan inlet communicates with the air guide sac 2, allowing a portion of the air on the side of the car seat closest to the human body to be drawn out sequentially through the extended air guide path, the connecting path, and the air guide pressure-bearing layer 201. Another portion is drawn out by the main air path, thereby achieving air flow on the seat surface.

[0065] This embodiment extends the ventilation area of ​​the car seat by providing the extended groove 4, the extended sealing layer 3 and the second ventilation channel 401, thereby expanding the ventilation area of ​​the car seat ventilation system and improving the ventilation effect.

[0066] Optionally, there are multiple extension grooves 4 , and the multiple extension grooves 4 can be arranged on any side of the first installation groove 111 , or can be distributed on different sides of the first installation groove 111 .

[0067] In some optional embodiments, as shown in Figures 1 and 2, three extension grooves 4 are provided on one side of the first mounting groove 111, each extension groove 4 is provided with a second ventilation channel 401 passing through the seat foam 1, and the tops of the three extension grooves 4 are correspondingly covered with an extension sealing layer 3.

[0068] In some optional embodiments, as shown in Figures 3 to 5, four extension grooves 4 are respectively provided on both sides of the first installation groove 111, and each extension groove 4 is provided with a second ventilation channel 401 passing through the seat foam 1, and the extension grooves 4 on both sides are correspondingly provided with extended sealing layers 3.

[0069] In some optional embodiments, as shown in FIG. 6 and FIG. 7 , the second ventilation channels 401 in the extension grooves 4 on both sides may be interconnected through the extension grooves 4 , thereby providing more air flow channels.

[0070] In some optional embodiments, as shown in Figures 13 and 14, three extension grooves 4 are provided on the four sides of the first installation groove 111, each extension groove 4 is provided with a second ventilation channel 401 that passes through the seat foam 1, and the extension grooves 4 on the four sides are correspondingly provided with an extended sealing layer 3.

[0071] In some optional embodiments, as shown in FIG. 15 and FIG. 16 , the second ventilation channels 401 in the extension grooves 4 on the four sides may be interconnected through the extension grooves 4 , thereby providing more air flow channels.

[0072] In some optional embodiments, as shown in Figures 9 and 10, two second ventilation channels 401 are opened on one side of the first installation groove 111, and the two second ventilation channels 401 are connected through the extension groove 4, and the extension groove 4 is connected to the first installation groove 111.

[0073] It is understandable that in actual applications, the extended groove 4 and the extended sealing layer 3 can be set according to the actual needs of different car seats, so as to extend the ventilation area of ​​the car seat, expand the ventilation area of ​​the car seat ventilation system, and improve the ventilation effect.

[0074] Optionally, as shown in Figure 18, at least one first opening 8 is provided on at least one side of the air guide bladder 2. The air guide bladder 2 communicates with the extended groove 4 through the first opening 8, forming a communication path. The first opening 8 of the air guide bladder 2 is positioned according to the location of the extended groove 4, and the number of first openings 8 is no less than the number of extended grooves 4. The communication path is a connecting channel between the first ventilation channel 102 and the second ventilation channel 401. This arrangement ensures good ventilation and improves the ventilation efficiency of the car seat.

[0075] In this embodiment, as shown in FIG. 11 and FIG. 12 , the air guide mechanism applied to the automobile seat ventilation system further includes an extended air guide pressure-bearing layer 7 , and the extended air guide pressure-bearing layer 7 is disposed in the extended groove 4 .

[0076] In this embodiment, the extended air-guiding pressure-bearing layer 7 is a 3D knitted mesh, which is filled in the extended groove 4 to play a supporting and air-guiding role.

[0077] Optionally, the connecting path is an extended air-guiding pressure-bearing layer 7 connected to the air-guiding pressure-bearing layer 201 of the air-guiding sac 2, and the sac surface layer of the air-guiding sac 2 is extended to wrap the extended air-guiding pressure-bearing layer 7. The extended air distribution layer 203 is provided with an air-guiding opening corresponding to the extended groove 4, and the extended sac surface layer completely covers the extended groove 4.

[0078] Optionally, the air guiding pressure bearing layer 201 and the extended air guiding pressure bearing layer 7 may be connected by welding or other means, or the extended air guiding pressure bearing layer 7 may be obtained by integrally extending the air guiding pressure bearing layer 201 .

[0079] In this embodiment, the materials of the air-guiding pressure-bearing layer 201 and the extended air-guiding pressure-bearing layer 7 are both 3D knitted mesh, and the two are connected to form a connecting path. The air distribution layer 203 is provided with an air-guiding opening corresponding to the extended groove 4 to provide protection for the circulation of airflow.

[0080] In this embodiment, at least one foaming protrusion 103 is provided between the extension groove 4 and the first installation groove 111 , and the foaming protrusion 103 is configured to support the extension sealing layer 3 .

[0081] Optionally, as shown in Figure 8, the foaming protrusion 103 is arranged between the extension groove 4 and the first installation groove 111. When the extension sealing layer 3 covers the top of the extension groove 4, the foaming protrusion 103 can provide support so that the extension groove 4 and the first installation groove 111 are always connected, thereby ensuring the circulation of airflow.

[0082] In this embodiment, the foaming protrusion 103 and the seat foam 1 are integrated.

[0083] Optionally, the extended sealing layer 3 can be extended from the surface layer of the air guide sac 2. The extended sealing layer 3 and the air guide sac 2 can also be integral; the extended sealing layer 3 and the air guide sac 2 can also be separate and connected by welding or gluing.

[0084] In this embodiment, the extended sealing layer 3 is obtained by extending the sealing layer 202 , and the extended sealing layer 3 and the air guide bag body 2 are integrated.

[0085] In this embodiment, the extended sealing layer 3 and the sealing layer 202 are made of TPU or PU. Of course, in other embodiments, the extended sealing layer 3 can also be made of other materials separately and connected to the sealing layer 202 of the air guide bladder 2 by welding or gluing.

[0086] Optionally, an adhesive layer 204 is provided between the air distribution layer 203 and the first installation groove 111 , and the adhesive layer 204 is configured to seal and fix the air guide bag 2 and the first installation groove 111 .

[0087] Optionally, an extension adhesive layer 6 is provided between the extension sealing layer 3 and the extension groove 4 , and the extension adhesive layer 6 is adhered to the extension adhesive layer adhesion area 5 , configured to seal and fix the extension sealing layer 3 and the extension groove 4 .

[0088] In this embodiment, the air guide bag body 2 is bonded to the surface of the first mounting groove 111 through the adhesive layer 204, the extended sealing layer 3 completely covers the extended groove 4, the extended adhesive layer 6 covers the top surface of the extended groove 4, and the extended sealing layer 3 is adhered to the extended adhesive layer adhesive area 5 and sealed and fixed around the extended groove 4 through the extended adhesive layer 6.

[0089] In this embodiment, the adhesive layer 204 and the extended adhesive layer 6 are adhesive materials such as double-sided tape, hot-melt adhesive particles, etc. It is worth mentioning that in other embodiments, the extended sealing layer 3 can also be connected to the seat foam 1 by welding or other means.

[0090] The present disclosure also provides a car seat, comprising the above-mentioned air guide mechanism applied to the car seat ventilation system.

[0091] In the actual application scenario of this embodiment, the air guide sac 2 is installed on the side of the seat foam 1 away from the human body. As shown in Figure 17, the air guide sac 2 also includes a protective layer 205. The protective layer 205 is arranged on the side of the sealing layer 202 away from the air guide pressure bearing layer 201. The material is non-woven fabric, covering the sealing layer 202 and the extended sealing layer 3. The protective layer 205 can avoid friction between the air guide sac 2 and the seat frame, which may cause damage or abnormal noise; one side of the air guide sac 2 is connected to an air drive component. When the air drive component blows air into the car seat, the air outlet of the air drive component is connected to the air guide sac 2, and the air drive Part of the wind blown out from the air outlet of the component flows through the air guide pressure layer 201, the connecting path and the extended air guide path in sequence and blows toward the seat surface, and the other part enters the car seat through the main air path and realizes air flow on the seat surface; when the air drive component is sucking air, the air inlet of the air drive component is connected to the air guide bag 2, and part of the air on the side of the car seat close to the human body can be sucked out through the extended air guide path, the connecting path and the air guide pressure layer 201 in sequence, and the other part is sucked out through the main air path, thereby realizing air flow on the seat surface. The ventilation efficiency of the ventilation system of the car seat equipped with this air guide mechanism can be significantly improved.

[0092] This article uses specific examples to illustrate the principles and implementation methods of the present disclosure. The description of the above embodiments is only used to help understand the method and core ideas of the present disclosure. The above is only an optional implementation method of the present disclosure. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present disclosure, they can also make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the disclosed concepts and technical solutions to other occasions without improvement, should be regarded as the scope of protection of the present disclosure. Industrial Applicability

[0093] The present invention extends the ventilation area of ​​the car seat by providing an extended groove and an extended sealing layer, thereby expanding the ventilation area of ​​the car seat ventilation system and improving the ventilation effect.

Claims

1. An air guide mechanism used in a vehicle seat ventilation system, characterized in that: include: A seat foam (1), the seat foam (1) comprising a first mounting surface (101), the first mounting surface (101) being a side of the seat foam (1) away from a human body, a first mounting groove (111) being provided on the first mounting surface (101), the opening direction of the first mounting groove (111) being towards a side away from the human body; a plurality of first ventilation channels (102) penetrating the seat foam (1) being provided in the first mounting groove (111); An air guide sac (2), the air guide sac (2) being arranged in the first mounting groove (111); the air guide sac (2) comprising a sac surface layer and an air guide pressure bearing layer (201); the sac surface layer comprising a sealing layer (202) and an air distribution layer (203); the air guide pressure bearing layer (201) being arranged between the sealing layer (202) and the air distribution layer (203); the air distribution layer (203) being provided with a plurality of air distribution ports (231) arranged corresponding to each of the first ventilation channels (102); the air distribution layer (203) being arranged adjacent to the top surface of the first mounting groove (111); the first ventilation channel (102) is connected to the air guide sac (2) to form a main air flow passage; An air drive component, the air drive component is connected to the air guide bag (2) and is configured to drive the air guide mechanism to guide air; An extended sealing layer (3), the extended sealing layer (3) being connected to the bladder surface layer of the air guide bladder (2); an extended groove (4), the extended groove (4) being arranged on at least one side of the first mounting groove (111) and being in communication with the first mounting groove (111), the extended groove (4) being provided with at least one second ventilation channel (401) penetrating the seat foam (1), the extended sealing layer (3) being arranged corresponding to the extended groove (4) and covering the extended groove (4), thereby forming an extended air guide passage; A communication path, the communication path being configured to connect the air guide bag (2) with the extension groove (4); When the air driving assembly is working, the air on the seat surface flows through the main air guide passage, the extended air guide passage, and the communication path.

2. The air guide mechanism for a vehicle seat ventilation system according to claim 1, characterized in that: There are a plurality of the extension grooves (4), and the plurality of extension grooves (4) are arranged on any side of the first installation groove (111) or distributed on different sides of the first installation groove (111).

3. The air guide mechanism used in the automobile seat ventilation system according to claim 1 or 2, characterized in that: At least one side of the air guide bag body (2) is provided with at least one first opening (8), and the air guide bag body (2) is connected to the extension groove (4) through the first opening (8) to form the communication path.

4. The air guide mechanism for a vehicle seat ventilation system according to any one of claims 1 to 3, characterized in that: The communication path is a communication channel between the first ventilation channel (102) and the second ventilation channel (401).

5. The air guide mechanism used in a vehicle seat ventilation system according to any one of claims 1 to 4, characterized in that: It also comprises an extended wind-guiding pressure-bearing layer (7), wherein the extended wind-guiding pressure-bearing layer (7) is arranged in the extended groove (4).

6. The air guide mechanism for a vehicle seat ventilation system according to claim 5, characterized in that: The communication path is the extended air guiding pressure bearing layer (7) connected to the air guiding pressure bearing layer (201) of the air guiding sac (2); The air guide sac surface layer of the air guide sac (2) wraps the extended air guide pressure bearing layer (7) therein, and the air distribution layer (203) is provided with an air guide opening corresponding to the extended groove (4).

7. The air guide mechanism used in a vehicle seat ventilation system according to any one of claims 1 to 6, characterized in that: At least one foaming protrusion (103) is provided between the extension groove (4) and the first installation groove (111), and the foaming protrusion (103) is configured to support the extension sealing layer (3).

8. The air guide mechanism used in a vehicle seat ventilation system according to claim 7, characterized in that: The foaming protrusion (103) and the seat foam (1) are integrated.

9. The air guide mechanism used in a vehicle seat ventilation system according to any one of claims 1 to 8, characterized in that: The extended sealing layer (3) is obtained by extending the balloon surface layer of the air guide balloon (2).

10. The air guide mechanism used in the automobile seat ventilation system according to claim 9, characterized in that: The extended sealing layer (3) and the air guide bag body (2) are integral; or the extended sealing layer (3) and the air guide bag body (2) are separate.

11. The air guide mechanism used in a vehicle seat ventilation system according to any one of claims 1 to 10, characterized in that: An adhesive layer (204) is provided between the air distribution layer (203) and the first installation groove (111), and the adhesive layer (204) is configured to seal and fix the air guide bag body (2) and the first installation groove (111).

12. The air guide mechanism used in a vehicle seat ventilation system according to any one of claims 1 to 11, characterized in that: An extension adhesive layer (6) is provided between the extension sealing layer (3) and the extension groove (4), and the extension adhesive layer (6) is configured to seal and fix the extension sealing layer (3) and the extension groove (4).

13. The air guide mechanism for a vehicle seat ventilation system according to claim 12, characterized in that: The stretch adhesive layer (6) is adhered to the stretch adhesive layer adhesion area (5).

14. The air guide mechanism for a vehicle seat ventilation system according to claim 13, characterized in that: The extended sealing layer (3) completely covers the extended groove (4); The extended adhesive layer (6) covers the top surface of the extended groove (4), and the extended sealing layer (3) is adhered to the extended adhesive layer adhesion area (5) and the extended groove (4) through the extended adhesive layer (6). The surrounding seal is fixed.

15. A car seat, characterized in that: The automobile seat comprises the air guide mechanism applied to the automobile seat ventilation system according to any one of claims 1 to 14.

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