Air guide mechanism for the ventilation system of a car seat as well as car seat

Abstract

This disclosure provides an air guidance mechanism for a car seat ventilation system and a car seat, wherein the air guidance mechanism comprises: a seat foam body having a first mounting recess in which an air-guiding bag body and a first ventilation channel extending through the seat foam body are arranged; the air-guiding bag body comprises a pressure-bearing air guidance layer and a surface layer having a sealing layer and an air distribution layer, on the air distribution layer having an air distribution opening corresponding to the first ventilation channel, wherein the first ventilation channel is in fluid communication with the air-guiding bag body to form a main air guidance passage;The extended recess, which includes a second ventilation channel, is fluidically connected to the first mounting recess, and an extended sealing layer is arranged correspondingly to the extended recess to form an extended air passage; a connecting path fluidically connects the air-conducting bag body to the extended recess, and the air drive assembly drives air at the seat surface to flow through the main air passage, the extended air passage, and the connecting path; by providing the extended recess and the extended sealing layer, the ventilation area of ​​a car seat is lengthened, the ventilation surface of the car seat's ventilation system is increased, and the ventilation effect is improved.

Description

Cross-reference to related applications

[0001] The present disclosure claims priority from Chinese patent application no. 202310917037.X, filed on July 25, 2023 with the Chinese Patent Office entitled “Air guidance mechanism for ventilation system of a car seat and car seat”, the entire disclosure of which is incorporated herein by reference. Technical field

[0002] This disclosure relates to the technical field of car seats, in particular to an air guidance mechanism for the ventilation system of a car seat, and to a car seat. Technical background

[0003] With the continuous development of automotive technology, users are spending more and more time in their cars, and the concept of making a car feel like home is gaining increasing public recognition. Creating a more comfortable driving and seating experience, and ensuring a cool feel at contact points between the human body and the car seat, especially during hot summer days, remains a topic of growing concern.

[0004] In recent years, a comfort system with seat climate control and ventilation has gradually established itself on the market as an excellent application in terms of vehicle comfort technology. However, the available space for a ventilation assembly is reduced by the arrangement of structures such as grooves or frames, thereby decreasing the ventilated area and impairing the ventilation effect. Subject of the revelation

[0005] With regard to the disadvantages in the prior art, this disclosure is based on the provision of an air guidance mechanism for the ventilation system of a car seat as well as a car seat.

[0006] In a first aspect, this revelation provides an air guidance mechanism for the ventilation system of a car seat, including: a seat foam body having a first mounting surface which represents the surface of the seat foam body facing away from the human body, wherein the first mounting surface is provided with a first mounting recess which is open towards the side facing away from the human body, and the first mounting recess is provided with a plurality of first ventilation channels therein which extend through the seat foam body; an air-conducting bag body arranged in the first mounting recess, comprising a surface layer and a pressure-bearing air-conducting layer, wherein the surface layer comprises a sealing layer and an air distribution layer, and wherein the pressure-bearing air-conducting layer is located between the sealing layer and the air distribution layer, and wherein the air distribution layer is provided with some air distribution openings arranged corresponding to the individual first ventilation channels and is located adjacent to the top of the first mounting recess, and wherein the first ventilation channels are in fluid communication with the air-conducting bag body to form a main air-conducting passage; an air drive assembly that is in fluid technical connection with the air-guiding bag body and is configured to drive the air guide mechanism for air delivery; an extensive sealing layer that is connected to the surface layer of the air-conducting bag body; an extended recess arranged on at least one side of the first mounting recess and in fluidic communication with the first mounting recess, wherein the extended recess is provided with at least one second ventilation channel therein extending through the seat foam body, and wherein the extended sealing layer is arranged accordingly for the extended recess and covers the extended recess to form an extended air passage; a connection path configured to connect the air-conducting bag body to the extended recess; where, during the operation of the air drive assembly, an airflow is enabled at the seat surface through the main air passage, the extended air passage and the connecting path.

[0007] According to one of the technical solutions provided by this disclosure, a plurality of extended recesses are present, wherein the extended recesses are arranged on any side of the first assembly recess or are distributed on different sides of the first assembly recess.

[0008] According to one of the technical solutions provided by this disclosure, at least one first opening is provided on at least one side of the air-conducting bag body, wherein the air-conducting bag body is fluidically connected via the first opening to the extended recess to form the connection path.

[0009] According to one of the technical solutions provided by this disclosure, the connection path represents a connecting channel between the first ventilation channel and the second ventilation channel.

[0010] According to one of the technical solutions provided by this disclosure, the air guidance mechanism further comprises an extended pressure-bearing air guidance layer arranged in the extended recess.

[0011] According to one of the technical solutions provided by this disclosure, the connection path represents the extended pressure-bearing air guide layer that is connected to the pressure-bearing air guide layer of the air-conducting bag body; and the surface layer of the air-conducting bag body encloses the extended pressure-bearing air-conducting layer, wherein the air distribution layer is provided with an air-conducting opening at a location corresponding to the extended recess.

[0012] According to one of the technical solutions provided by this disclosure, at least one foam elevation is provided between the extended recess and the first mounting recess, configured to support the extended sealing layer.

[0013] According to one of the technical solutions provided by this disclosure, the foam elevation is formed as a single unit with the foam body.

[0014] According to one of the technical solutions provided by this disclosure, the extended sealing layer is obtained by extending the surface layer of the air-conducting bag body.

[0015] According to one of the technical solutions provided by this disclosure, the extended sealing layer is formed in one piece with the air-conducting bag body, or the extended sealing layer is separate from the air-conducting bag body.

[0016] According to one of the technical solutions provided by this disclosure, an adhesive layer is present between the air distribution layer and the first mounting recess, configured to seal and fix the air-conducting bag body and the first mounting recess.

[0017] According to one of the technical solutions provided by this disclosure, an extended adhesive layer is present between the extended sealing layer and the extended recess, wherein the extended adhesive layer is configured to seal and fix the extended sealing layer and the extended recess.

[0018] According to one of the technical solutions provided by this disclosure, the extended adhesive layer is bonded to an adhesive area for extended adhesive layers.

[0019] According to one of the technical solutions provided by this disclosure, the extended sealing layer completely covers the extended recess; and the extended adhesive layer covers the top of the extended recess and the extended sealing layer is sealed by applying the extended adhesive layer to the adhesive area for the extended adhesive layer and to the periphery of the extended recess.

[0020] In a second aspect, this disclosure proposes a car seat which incorporates an air guidance mechanism for the ventilation system of a car seat as described above.

[0021] In summary, an air guidance mechanism for a car seat ventilation system is proposed in this disclosure, comprising a seat foam body having a first mounting recess in which an air-guiding bag body and a first ventilation channel extending through the seat foam body are arranged; the air-guiding bag body comprises a pressure-bearing air guidance layer and a surface layer having a sealing layer and an air distribution layer, on the air distribution layer having an air distribution opening corresponding to the first ventilation channel, wherein the first ventilation channel is in fluid communication with the air-guiding bag body to form a main air guide passage;The extended recess, which includes a second ventilation channel, is fluidically connected to the first mounting recess, and an extended sealing layer is arranged correspondingly to the extended recess to form an extended air passage; a connecting path fluidically connects the air-conducting bag body to the extended recess, and the air drive assembly drives air at the seat surface to flow through the main air passage, the extended air passage, and the connecting path; by providing the extended recess and the extended sealing layer, the ventilation area of ​​a car seat is lengthened, the ventilation surface of the car seat's ventilation system is increased, and the ventilation effect is improved. Description of drawings Fig. Figure 1 is a front view of an air guidance mechanism provided by an embodiment of this disclosure, wherein no air-guiding bag body is mounted and the extended recesses are arranged on one side of the first mounting recess; Fig. Figure 2 is a front view of an air guidance mechanism provided by an embodiment of this disclosure, wherein the air-guiding bag body is mounted and the extended recesses are arranged on one side of the first mounting recess; Fig. Figure 3 is a front view of an air guidance mechanism provided by an embodiment of this disclosure, wherein no air-guiding bag body is mounted and the extended recesses are arranged on two sides of the first mounting recess; Fig. Figure 4 is a sectional view of an air guidance mechanism provided by an embodiment of this disclosure, wherein the air-guiding bag body is mounted and the extended recesses are arranged on two sides of the first mounting recess; Fig. Figure 5 is a schematic structural representation of an air guidance mechanism provided by an embodiment of this disclosure, wherein no air-guiding bag body is mounted and the extended recesses are arranged on two sides of the first mounting recess; Fig. Figure 6 is a front view of an air guidance mechanism provided by an embodiment of this disclosure, wherein no air-guiding bag body is mounted and the extended recesses are arranged on two sides of the first mounting recess, and wherein foam recesses are present and the second ventilation channels are fluidically connected to each other; Fig. Figure 7 is a side-sectional view of an air guidance mechanism provided by an embodiment of this disclosure, wherein the air-guiding bag body is mounted and the extended recesses are arranged on two sides of the first mounting recess, and wherein foam recesses are provided and the second ventilation channels are fluidically connected to each other; Fig. Figure 8 is a schematic structural representation of an air guidance mechanism provided by an embodiment of this disclosure, around which the extended adhesive layer is arranged, wherein no air-guiding bag body is mounted and the extended recesses are arranged on two sides of the first mounting recess, and wherein the second ventilation channels are fluidically connected to each other and foam protrusions are present between the extended recesses and the first mounting recess; Fig. Figure 9 is a front view of an air guidance mechanism provided by an embodiment of this disclosure, wherein no air-guiding bag body is mounted and the extended recess is fluidically connected to the second ventilation channel; Fig. Figure 10 is a side view of an air guidance mechanism provided by an embodiment of this disclosure, wherein no air-guiding bag body is mounted and the extended recess is fluidically connected to the second ventilation channel; Fig. Figure 11 is a schematic structural representation of an air guidance mechanism provided by an embodiment of this disclosure, wherein the air-guiding bag body is mounted and the extended recess is fluidically connected to the second ventilation channel; Fig. Figure 12 is an exploded view of an air guidance mechanism provided by an embodiment of this disclosure, wherein the extended recess is fluidically connected to the second ventilation channel and the air-guiding bag body has been mounted in the first mounting recess; Fig. Figure 13 is a front view of an air guidance mechanism provided by an embodiment of this disclosure, wherein no air-guiding bag body is mounted and the extended recess is present on each side of the first mounting recess; Fig. Figure 14 is a schematic structural representation of an air guidance mechanism provided by an embodiment of this disclosure, wherein no air-guiding bag body is mounted and the extended recess is present on each side of the first mounting recess; Fig. Figure 15 is a front view of an air guidance mechanism provided by an embodiment of this disclosure, wherein no air-guiding bag body is mounted, the extended recess is present on each side of the first mounting recess, foam protrusions are present, and the second ventilation channels are fluidically connected to each other; Fig. Figure 16 is a schematic structural representation of an air guidance mechanism provided by an embodiment of this disclosure, wherein no air-guiding bag body is mounted, the extended recess is present on each side of the first mounting recess, foam protrusions are present, and the second ventilation channels are fluidically connected to each other; Fig. Figure 17 is an exploded view of an air-conducting bag body without first openings provided by an embodiment of this disclosure; and Fig. Figure 18 is an exploded view of an air-conducting bag body provided by an embodiment of this disclosure, with the first openings. Detailed description of embodiments

[0022] This disclosure is described in detail below with reference to drawings and optional embodiments. It should be understood that the specific embodiments described here serve only to illustrate the disclosure and do not constitute a limitation to this disclosure. Furthermore, it should be noted that, for the sake of simplicity, only parts pertaining to the disclosure are shown in the drawings.

[0023] It should be noted that the embodiments and / or features in the embodiments can be combined with one another, provided there is no conflict. This disclosure will be described in more detail below with reference to the drawings and embodiments.

[0024] As mentioned in the technical background, with regard to the problems in the prior art, an air guidance mechanism for the ventilation system of a car seat and a car seat are proposed by this disclosure.

[0025] Reference to Fig. 1. An air guidance mechanism for the ventilation system of a car seat is proposed in the present embodiment, comprising: a seat foam body 1 having a first mounting surface 101 which represents the surface of the seat foam body 1 facing away from the human body, wherein the first mounting surface 101 is provided with a first mounting recess 111 which is open towards the side facing away from the human body, and the first mounting recess 111 is provided with a plurality of first ventilation channels 102 therein which extend through the seat foam body 1; an air-conducting bag body 2 arranged in the first mounting recess 111, comprising a surface layer and a pressure-bearing air-conducting layer 201, wherein the surface layer comprises a sealing layer 202 and an air distribution layer 203, and wherein the pressure-bearing air-conducting layer 201 is located between the sealing layer 202 and the air distribution layer 203, and wherein the air distribution layer 203 is provided with some air distribution openings 231, which are arranged corresponding to the individual first ventilation channels 102 and are arranged adjacent to the top of the first mounting recess 111, and wherein the first ventilation channels 102 are in fluid-technical communication with the air-conducting bag body 2 to form a main air-conducting passage; an air drive assembly which is in fluid-technical connection with the air-guiding bag body 2 and is configured to drive the air guide mechanism for air guidance; an extensive sealing layer 3, which is connected to the surface layer of the air-conducting bag body 2; an extended recess 4, which is arranged on at least one side of the first mounting recess 111 and is in fluid-technical communication with the first mounting recess 111, wherein the extended recess 4 is provided with at least one second ventilation channel 401 therein, which extends through the seat foam body 1, and wherein the extended sealing layer 3 of the extended recess 4 is arranged accordingly and covers the extended recess 4 to form an extended air passage; a connection path configured to connect the air-conducting bag body 2 to the extended recess 4; where, during the operation of the air drive assembly, an airflow is enabled at the seat surface through the main air passage, the extended air passage and the connecting path.

[0026] Optionally, the air-conducting bag body 2 is a ventilating bag and the extended sealing layer 3 is a curtain of the ventilating bag, wherein the air-conducting bag body 2 is glued into the first mounting recess and the extended sealing layer 3 is glueable to the top of the extended recesses 4 to completely cover the extended recesses 4; the pressure-bearing air-conducting layer 201 is located 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 four sides.

[0027] Optionally, the air drive assembly (not shown in the drawings) is a fan and is arranged on a side of the air-conducting bag body 2 facing away from the human body. When the fan blows air into the car seat, the fan's air outlet is fluidly connected to the air-conducting bag body 2, with part of the airflow from the fan's air outlet flowing successively through the pressure-bearing air-conducting layer 201, the connection path, and the extended air-conducting passage into the car seat, contributing to an airflow at the seat surface; another part flows into the car seat via the main air-conducting passage and contributes to the airflow at the seat surface.When the fan draws in air, the fan's air inlet is in fluidic communication with the air-conducting bag body 2, so that air can be drawn out successively on one side of the car seat facing the human body through the pressure-bearing air guide layer 201, the connection path, the extended air guide passage, and another part can be drawn out through the main air guide passage, thus enabling an airflow on the seat surface.

[0028] In this embodiment, the ventilation area of ​​a car seat is extended, the ventilation surface of the car seat's ventilation system is increased, and the ventilation effect is improved by providing the extended recess 4, the extended sealing layer 3, and the second ventilation channels.

[0029] Optionally, a plurality of the extended recesses 4 are available, wherein the extended recesses 4 can be arranged on any side of the first mounting recess 111 or can be distributed on different sides of the first mounting recess 111.

[0030] In some optional embodiments, such as in Fig. 1 to Fig. As shown in Figure 2, the first mounting recess 111 is provided with three extended recesses 4 on one side, each in which a ventilation channel 401 is provided which extends through the seat foam body 1, the upper part of the three extended recesses 4 being covered by an extended sealing layer 3 accordingly.

[0031] In some optional embodiments, such as in Fig. 3 to Fig. As shown in Figure 5, the first mounting recess 111 is provided with four extended recesses 4 on each of two sides, in each of which a ventilation channel 401 is provided which extends through the seat foam body 1, wherein the extended recesses 4 on both sides are accordingly provided with an extended sealing layer 3.

[0032] In some optional embodiments, such as in Fig. 6 to Fig. As shown in Figure 7, the second ventilation channels 401 in the extended recesses 4 on both sides can be fluidically connected to each other by means of the extended recesses 4, so that more flow channels are available for airflow.

[0033] In some optional embodiments, such as in Fig. 13 to Fig. As shown in Figure 14, the first mounting recess 111 has three extended recesses 4 on each of four sides, in each of which a ventilation channel 401 is provided that extends through the seat foam body 1, wherein the extended recesses 4 on four sides are accordingly provided with an extended sealing layer 3.

[0034] In some optional embodiments, such as in Fig. 15 to Fig. As shown in Figure 16, the second ventilation channels in the extended recesses 4 can be fluidically connected to each other on four sides by means of the extended recesses 4, so that more flow channels are available for airflow.

[0035] In some optional embodiments, such as in Fig. 9 to Fig. As shown in Figure 10, the first mounting recess 111 is provided with two second ventilation channels 401 on one side, which are fluidly connected to each other by means of an extended recess 4, wherein the extended recess 4 is in fluid connection with the first mounting recess 111.

[0036] It is understandable that in practical applications the extended recess 4 or the extended sealing layer 3 may be arranged in different car seats depending on practical needs, in order to extend the ventilation area of ​​the car seat, increase the ventilation surface of the ventilation system and improve the ventilation effect.

[0037] Optional, as in Fig. As shown in Figure 18, the air-conducting bag body 2 is provided with at least one first opening 8 on at least one side, by means of which the air-conducting bag body 2 is in fluid-technical communication with the extended recess 4 to form the connection path. The first openings 8 are arranged corresponding to the position of the extended recesses 4, the number of first openings 8 being at least equal to the number of extended recesses 4, and the connection path being the connecting channel between the first ventilation channel 102 and the second ventilation channel 401. This arrangement ensures good ventilation of the car seat and increases its ventilation efficiency.

[0038] In the present embodiment, as shown in Fig. 11 and Fig. As shown in Figure 12, the air guidance mechanism for the ventilation system of a car seat further comprises an extended pressure-bearing air guidance layer 7, which is arranged in the extended recess 4.

[0039] In the present embodiment, the extended pressure-bearing air guidance layer 7 is a 3D mesh fabric which is filled into the extended recess 4 to achieve load-bearing and air guidance functions.

[0040] Optionally, the connection path represents an extended pressure-bearing air guidance layer 7, which is fluidly connected to the pressure-bearing air guidance layer 201 of the air-guiding bag body 2, wherein the surface layer of the air-guiding bag body 2 envelops the extended pressure-bearing air guidance layer 7, the extended air distribution layer 203 is provided with an air guidance opening at a location corresponding to the extended recess 4, and the extended surface layer completely covers the extended recess 4.

[0041] Optionally, the pressure-bearing air guide layer 201 can be connected to the extended pressure-bearing air guide layer 7 by, for example, welding, and the extended pressure-bearing air guide layer 7 is also available by one-piece extension of the pressure-bearing air guide layer 201.

[0042] In this embodiment, the pressure-bearing air guide layer 201 and the extended pressure-bearing air guide layer 7 are each made of 3D mesh fabric, the two of which are fluidically connected to each other to form the connection path, wherein the air distribution layer 203 is provided with an air guide opening at a location corresponding to the extended recess 4, which ensures the flow of the air stream.

[0043] In this embodiment, at least one foam protrusion 103 is arranged between the extended recess 4 and the first mounting recess 111, wherein the foam protrusion 103 is configured to support the extended sealing layer 3.

[0044] Optional, as in Fig. As shown in Figure 8, the foam elevation 103 is located between the extended recess 4 and the first mounting recess 111, which can provide a supporting function when the extended sealing layer 3 covers the extended recesses 4 from above, so that the extended recesses 4 are always in fluidic contact with the first mounting recess 111 in order to ensure the flow of the airflow.

[0045] In this embodiment, the foam elevation 103 is formed as one piece with the seat foam body 1.

[0046] Optionally, the extended sealing layer 3 can be achieved by extending the surface layer of the air-conducting bag body 2. In this case, the extended sealing layer 3 can also be formed as a single unit with the air-conducting bag body 2; alternatively, the extended sealing layer 3 can be separate from the air-conducting bag body 2 and joined, for example, by welding or bonding.

[0047] In this embodiment, the extended sealing layer 3 is obtained by the extension of the sealing layer 202, wherein the extended sealing layer 3 is formed with the air-conducting bag body 2.

[0048] In this embodiment, the extended sealing layer 3 and the sealing layer 202 are made of TPU or PU. In further embodiments, the extended sealing layer 3 can of course be made of a different material and subsequently connected to the sealing layer 202 of the air-conducting bag body 2, for example by wear or bonding.

[0049] Optionally, an adhesive layer 204 is provided between the air distribution layer 203 and the first mounting recess 111, which is configured in such a way that it seals the air-conducting bag body 2 and the first mounting recess 111.

[0050] Optionally, an extended adhesive layer 6 is provided between the extended sealing layer 3 and the extended recess 4, which is glued onto the adhesive area 5 for the extended adhesive layer and is configured in such a way that it seals and fixes the extended sealing layer 3 and the extended recess 4.

[0051] In this embodiment, the air-conducting bag body 2 is bonded to the surface of the first mounting recess 111 by means of an adhesive layer 204, wherein the extended sealing layer 3 completely covers the extended recess 4, the extended adhesive layer covers the extended recess 4 from above, and the extended sealing layer 3 is sealed by bonding the extended adhesive layer 6 to the bonding area 5 for the extended adhesive layer and to the periphery of the extended recess 4.

[0052] In this embodiment, the adhesive layer 204 or the extended adhesive layer 6 consists of adhesives such as double-sided adhesive, hot melt adhesive granules, or the like. It should be noted that in other embodiments, the extended sealing layer 3 can also be connected to the seat foam body 1, for example, by welding.

[0053] This disclosure further proposes a car seat comprising an air guidance mechanism for the ventilation system of a car seat as described above.

[0054] In practical application scenarios of this embodiment, the air-conducting bag body 2 is attached to a side of the seat foam body 1 facing away from the human body. As in Fig.As shown in Figure 17, the air-conducting bag body 2 further comprises a protective layer 205, which is arranged on the side of the sealing layer 202 facing away from the pressure-bearing air-conducting layer 201, is made of nonwoven fabric, and covers the sealing layer 2 as well as the extended sealing layer 3. The protective layer 205 prevents friction between the air-conducting bag body 2 and the seat frame that could cause damage or rattling. The air-conducting bag body 2 is in fluid-technical connection at one end to an air drive assembly.When the air drive assembly blows air into the car seat, the air outlet of the air drive assembly is in fluidic communication with the air-conducting bag body 2, so that part of the airflow from the air outlet of the air drive assembly flows successively through the pressure-bearing air guide layer 201, the connection path and the extended air guide passage into the car seat, and another part flows into the car seat via the main air guide passage to enable an airflow on the seat surface.When the air drive assembly draws in air, its air inlet is fluidically connected to the air-guiding bag body 2, allowing air to be drawn out sequentially on one side of the car seat facing the human body through the extended air guide passage, the connecting path, and the pressure-bearing air guide layer 201, while another portion is drawn out through the main air guide passage, thus enabling airflow across the seat surface. The ventilation effect of a car seat's ventilation system incorporating such an air guide mechanism can be significantly enhanced.

[0055] Specific examples are used here to illustrate the principles and embodiments of this disclosure, the description of which merely serves to facilitate understanding of the nature and essence of the disclosure. The foregoing descriptions are only optional embodiments of the present disclosure. It should be noted that, due to the limitations of textual expression and the objective existence of an infinite number of specific structures, a skilled person may make a number of modifications, improvements, or alterations and may combine the technical features expediently without departing from the principles of the disclosure. Such modifications, improvements, alterations, or combinations, and direct application of the concept and technical solution of this disclosure without modification, fall within the scope of protection of this disclosure. Industrial applicability

[0056] This revelation extends the ventilation area of ​​a car seat, increases the ventilation surface of the car seat's ventilation system, and improves the ventilation effect by providing the extended recess and the extended sealing layer. List of reference symbols: 1 seat foam body; 101 first assembly area; 111 first mounting recess; 102 first ventilation duct; 103 Foam elevation; 2 air-conducting bag bodies; 201 pressure-bearing air guide layer; 202 Sealing layer; 203 Air distribution layer; 231 Air distribution opening; 204 adhesive layer; 205 Protective layer; 3 extended sealing layer; 4 extended recess; 401 second ventilation duct; 5 extended adhesive area for extended adhesive layer; 6 extended adhesive layer; 7 extensive pressure-bearing air guide layer; 8 first opening. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] CN 202310917037

[0001]

Claims

[1] Air guiding mechanism for the ventilation system of a car seat, characterized by that this air guidance mechanism includes the following: a seat foam body (1) having a first mounting surface (101) representing the surface of the seat foam body (1) facing away from the human body, the first mounting surface (101) being provided with a first mounting recess (111) open toward a side facing away from the human body, and the first mounting recess (111) being provided with a plurality of first ventilation channels (102) therein extending through the seat foam body (1); an air-conducting bag body (2) arranged in the first recess (111), comprising a surface layer and a pressure-bearing air-conducting layer (201), wherein the surface layer comprises a sealing layer (202) and an air-distribution layer (203), and the pressure-bearing air-conducting layer (201) is located between the sealing layer (202) and the air-distribution layer (203), and wherein the air-distribution layer (203) is provided with a number of air-distribution openings (231) arranged corresponding to the individual first ventilation channels (102) and is arranged adjacent to the top side of the first mounting recess (111), and wherein the first ventilation channels (102) are in fluid communication with the air-conducting bag body (2) to form a main air passage; an air drive assembly in fluid communication with the air-conducting bag body (2) and configured to drive the air-guiding mechanism for guiding the air; an extended sealing layer (3) connected to the surface layer of the air-conducting bag body (2); an extended recess (4) arranged on at least one side of the first mounting recess (111) and in fluid communication with the first mounting recess (111), the extended recess (4) being provided with at least one second ventilation channel (401) therein which extends through the seat foam body (1), and the extended sealing layer (3) being arranged correspondingly to the extended recess (4) and covering the extended recess (4) to form an extended air guiding passage; a connection path configured to connect the air-conducting bag body (2) to the extended recess (4); wherein, during operation of the air drive assembly, air flow is enabled at the seat surface through the main air guide passage, the extended air guide passage, and the connecting path. [2] Air guiding mechanism for a ventilation system of a car seat according to claim 1, characterized by that a plurality of the extended recesses (4) are present, wherein the extended recesses (4) are arranged on any side of the first mounting recess (111) or are distributed on different sides of the first mounting recess (111). [3] Air guiding mechanism for a ventilation system of a car seat according to claim 1 or 2, characterized bythat at least one first opening (8) is provided on at least one side of the air-conducting bag body (2), wherein the air-conducting bag body (2) is fluidically connected to the extended recess (4) via the first opening in order to form the connection path. [4] Air guiding mechanism for a ventilation system of a car seat according to one of claims 1 to 3, characterized by that the connection path represents a connecting channel between the first ventilation channel (102) and the second ventilation channel (401). [5] Air guiding mechanism for a ventilation system of a car seat according to one of claims 1 to 4, characterized by that the air guiding mechanism further comprises an extended pressure-bearing air guiding layer (7) arranged in the extended recess (4). [6] Air guiding mechanism for a ventilation system of a car seat according to claim 5, characterized bythat the connection path represents the extended pressure-bearing air-guiding layer (7) which is connected to the pressure-bearing air-guiding layer (201) of the air-guiding bag body (2); and that the surface layer of the air-guiding bag body (2) envelops the extended pressure-bearing air-guiding layer (7), wherein the air distribution layer is provided with an air-guiding opening at a location corresponding to the extended recess (4). [7] Air guiding mechanism for a ventilation system of a car seat according to one of claims 1 to 6, characterized by that between the extended recess (4) and the first mounting recess (111) there is at least one foam elevation (103) which is configured to support the extended sealing layer (3). [8] Air guiding mechanism for a ventilation system of a car seat according to claim 7, characterized by that the foam elevation (103) is formed in one piece with the foam body (1). [9] Air guiding mechanism for a ventilation system of a car seat according to one of claims 1 to 8, characterized by that the extended sealing layer (3) is obtained by expanding the surface layer of the air-conducting bag body (2). [10] Air guiding mechanism for a ventilation system of a car seat according to claim 9, characterized by that the extended sealing layer (3) is formed in one piece with the air-conducting bag body (2), or the extended sealing layer (3) is separated from the air-conducting bag body (2). [11] Air guiding mechanism for a ventilation system of a car seat according to one of claims 1 to 10, characterized by that between the air distribution layer (203) and the first mounting recess (111) there is an adhesive layer (204) which is configured such that it sealingly fixes the air-conducting bag body (2) and the first mounting recess. [12] Air guiding mechanism for a ventilation system of a car seat according to one of claims 1 to 11, characterized by that an extended adhesive layer (6) is present between the extended sealing layer (3) and the extended recess (4), wherein the extended adhesive layer (6) is configured such that it sealingly fixes the extended sealing layer (3) and the extended recess (4). [13] Air guiding mechanism for a ventilation system of a car seat according to claim 12, characterized by that the extended adhesive layer (6) is glued to an adhesive area (5) for extended adhesive layer. [14] Air guiding mechanism for a ventilation system of a car seat according to claim 13, characterized bythat the extended sealing layer (3) completely covers the extended recess (4); and that the extended adhesive layer (6) covers the top of the extended recess (4) and the extended sealing layer (3) is sealingly fixed by adhering the extended adhesive layer (6) to the adhesive area (5) for the extended adhesive layer and to the periphery of the extended recess (4). [15] Car seat, characterized by that the car seat comprises an air guiding mechanism for a ventilation system of a car seat according to one of claims 1 to 14.

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