WO2023109644A1 - Ventilation device for vehicle seat, ventilation system, and seat - Google Patents

Abstract

A ventilation device (2) for a vehicle seat (1), wherein the seat (1) has a seat cushion (11) and a frame (12) which supports the seat cushion (11). The ventilation device (2) comprises: an airflow driving device (21) which has an air inlet (211) and an air outlet (212); a first air guide channel (22) which is in fluid communication with a first ventilation area (13) to be ventilated of the seat (1); a connector (24) which has a first fluid connection structure (241) for establishing fluid connection between the airflow driving device (21) and the first air guide channel (22). The first fluid connection structure (241) is provided with a first opening (2411) which is opened upwards and faces the seat cushion (11). The connector (24) is provided with a support structure (243) which prevents the first fluid connection structure from being blocked by a deformed seat cushion (11). Further disclosed are a corresponding ventilation system and a corresponding seat. The device can prevent fan damages due to the airflow channel being blocked, while reducing discomfort.

Description

Ventilation device, ventilation system and corresponding seat for a seat of a vehicle technical field

The invention relates to a ventilation device for a vehicle seat, a corresponding ventilation system for a vehicle seat and a corresponding vehicle seat.

Background technique

With the development of technology and the improvement of people's requirements for comfort, more and more vehicle seats are equipped with ventilation devices in order to improve the specific experience. Especially for hot summer, this kind of seat ventilation is very beneficial and can make people feel cool.

At present, the seat ventilation device has the problem that the fan and the corresponding air flow channel are blocked due to extrusion, and in severe cases, the fan will be damaged.

In addition, the ventilation device is usually arranged under the seat cushion. When the occupant sits on the seat, due to the flexible nature of the seat cushion, even through the seat cushion, they will often feel the existence of a relatively hard ventilation device, which will greatly reduce the air quality of the seat. quality and the discomfort of the occupants.

For this reason, need to carry out corresponding improvement.

Contents of the invention

In order to overcome the above-mentioned disadvantages and possibly other disadvantages, it is an object of the present invention to provide an improved ventilation device for a seat of a vehicle, a corresponding ventilation system for a seat of a vehicle and a corresponding ventilation system for a seat of a vehicle. The seat of the vehicle.

According to a first aspect of the present invention, there is provided a ventilation device for a seat of a vehicle, wherein the seat has a seat cushion and a frame for supporting the seat cushion, the ventilation device includes: an airflow driving device, It has a gas inlet for suction gas and a gas outlet for exhaust gas; a first gas guiding channel in fluid communication with a first ventilation area of the seat to be ventilated; and a connector with a A first fluid connection structure that fluidly connects the airflow driving device and the first gas guiding channel, wherein the first fluid connection structure is provided with a first opening that opens upward and faces the seat cushion, and the connection The device is provided with a supporting structure for preventing the first fluid connection structure and/or the gas inlet or the gas outlet from being blocked due to deformation of the cushion.

According to an optional embodiment of the present invention, the ventilation device further includes a second air guiding channel, which is in fluid communication with the second ventilation area of the seat to be ventilated; The second fluid connection structure between the air flow driving device and the second gas guide channel, wherein the second fluid connection structure is provided with a second opening that opens upward and faces the seat cushion, and the support structure is further supported by It is configured to prevent the second fluid connection structure from being blocked due to deformation of the cushion.

According to an optional embodiment of the present invention, the first fluid connection structure is connected to the first gas guiding channel through its first port; and/or the second fluid connection structure is connected to the The second air guide passage is connected; and/or the air flow resistance passing through the first air guide passage and/or the second air guide passage is less than the air flow resistance directly passing through the cushion; and/or the cushion is breathable.

According to an optional embodiment of the present invention, the connector is arranged above the airflow driving device; and/or the airflow driving device is fixed relative to the frame; and/or the airflow driving device is a fan; and /or the support structure is located above the airflow driving device; and/or the connector is configured as a strip to be arranged across the airflow driving device.

According to an optional embodiment of the present invention, the support structure is located between the first fluid connection structure and the second fluid connection structure; and/or the support structure is located at the gas inlet and/or the directly above the gas outlet; and/or the first fluid connection structure and the second fluid connection structure are arranged symmetrically with respect to the support structure; and/or the first fluid connection structure and the second fluid connection The structure extends in an opposite direction relative to the support structure.

According to an optional embodiment of the present invention, the support structure is provided with a concave portion on its top side; and/or the support structure is provided with a convex portion on its side facing the airflow driving device; and/or the The connectors are integrally formed; and/or the connectors are made of hard material; and/or the connectors are arranged along the width direction of the seat.

According to an alternative embodiment of the present invention, said protrusion is oriented towards said gas inlet or said gas outlet to define a first flow from said gas inlet or said gas outlet to said first fluid connection structure path and a second flow path leading to the second fluid connection.

According to an optional embodiment of the present invention, the concave portion is configured to have a V-shaped cross-section; and/or the convex portion is configured to have a V-shaped cross-section.

According to an optional embodiment of the present invention, the connector is provided with a communication port arranged around the gas inlet or the gas outlet on its side facing the airflow driving device; and/or the ventilation device It also includes a bearing board, the connector and the airflow driving device are installed on the bearing board from opposite sides respectively.

According to an optional embodiment of the present invention, the connector includes a first board and a second board arranged parallel to each other and vertically, and the support structure is connected between the first board and the second board; And/or the connector is completely open on the side facing the airflow driving device; and/or the carrier plate is configured with a through hole, and the lower edge of the connector is provided with a A positioning structure positioned relative to the through hole.

According to an optional embodiment of the present invention, the gas inlet or the gas outlet is arranged in the through hole; and/or the connector is configured in an H shape.

According to an optional embodiment of the present invention, the first fluid connection structure is interference fit with the first gas guiding channel; and/or the second fluid connection structure is interference fit with the second gas guiding channel .

According to an optional embodiment of the present invention, there is a free space above at least a part of the connector when the seat is in an unloaded state, and the first opening and/or the second opening lead to the free space. space; and/or the ventilation device is configured to also generate air flow through the void of the seat cushion; and/or the connector is provided at the knee area of the seat; and/or the The ventilation device is configured as a suction ventilation device or a blowing ventilation device; and/or the height of the connector is less than 20mm.

According to a second aspect of the present invention, there is provided a ventilation system for a seat of a vehicle, wherein the ventilation system comprises the ventilation device.

According to a third aspect of the present invention, there is provided a seat for a vehicle, wherein the seat includes the ventilation device or the ventilation system.

According to some embodiments of the present invention, damage to the fan due to blockage of the air flow channel can be prevented, and discomfort is also reduced.

Description of drawings

Hereinafter, the principles, features and advantages of the present invention can be better understood by describing the present invention in more detail with reference to the accompanying drawings. The attached drawings include:

FIG. 1 shows a bottom view of a seat for a vehicle according to an exemplary embodiment of the present invention (only a seat portion of the seat is shown in the figure).

FIG. 2 shows a perspective view of a seat for a vehicle according to an exemplary embodiment of the present invention.

Fig. 3 shows a perspective view of a seat for a vehicle according to an exemplary embodiment of the present invention, compared with Fig. 2 , the seat cushion is removed and a part of the ventilation device of the seat can be seen from above .

FIG. 4 shows a partial sectional view along the line A-A in FIG. 3 .

Fig. 5 shows a perspective view of a part of the ventilation device according to an exemplary embodiment of the present invention to better visualize the connectors of the ventilation device.

FIG. 6 shows a top view of a part of the ventilation device shown in FIG. 5 .

FIG. 7 shows a cross-sectional view along the section line B-B in FIG. 6 .

Fig. 8 shows a perspective view from the bottom of the seat shown in Fig. 1 without the ventilation device installed.

Detailed ways

In order to make the technical problems, technical solutions and beneficial technical effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and multiple exemplary embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, rather than to limit the protection scope of the present invention.

FIG. 1 shows a bottom view of a seat for a vehicle (only a seat portion of the seat is shown) according to an exemplary embodiment of the present invention.

FIG. 2 shows a perspective view of a seat for a vehicle according to an exemplary embodiment of the present invention.

Fig. 3 shows a perspective view of a seat for a vehicle according to an exemplary embodiment of the present invention, compared with Fig. 2 , the seat cushion is removed and a part of the ventilation device of the seat can be seen from above .

FIG. 4 shows a partial sectional view along the line A-A in FIG. 3 .

Fig. 5 shows a perspective view of a part of a ventilation device according to an exemplary embodiment of the present invention.

Before proceeding with the detailed description, it should first be noted that, for the sake of clarity, the description is mainly focused on the parts involved in the present invention, and the description of other parts that may cause confusion is omitted or simplified.

First, according to one aspect of the present invention, as shown in FIG. 1 , a ventilation device 2 for a seat 1 of a vehicle is provided, wherein the seat 1 has a cushion 11 and a frame 12 for supporting the cushion 11, so The ventilation device 2 includes: an air flow driving device 21, which has a gas inlet 211 for sucking gas and a gas outlet 212 for exhausting gas; The ventilation area 13 is in fluid communication; and the connector 24 has a first fluid connection structure 241 for fluidly connecting the airflow driving device 21 with the first gas guiding channel 22, wherein the first fluid connection structure 241 is arranged upwardly. Open to face the first opening 2411 of the seat cushion 11 , the connector 24 is provided with a supporting structure 243 for preventing the first fluid connection structure 241 and/or the gas inlet 211 or the gas outlet 212 from being blocked due to the deformation of the seat cushion 11 .

Those skilled in the art can understand that the cushion 11 can be in any form. Other structures may also be provided between the cushion 11 and the frame 12, especially a soft structure for improving comfort.

The first gas guide passage 22 may be provided along the front-rear direction of the seat 1 . Perforations can emerge from the surface of the seat cushion 11 , and these perforations are in fluid connection with the first air guide channel 22 , so that good ventilation can be achieved.

In order to make the ventilation more uniform, according to an exemplary embodiment of the present invention, especially as shown in FIG. 2 and FIG. The two ventilation areas 14 are in fluid communication.

To this end, the connector 24 also has a second fluid connection structure 242 for fluidly connecting the gas flow driving device 21 with the second gas guide channel 23, wherein, similarly, the second fluid connection structure 242 is provided with an upward opening facing The second opening 2421 of the cushion 11 . The support structure 243 is further configured to prevent the second fluid connection structure 242 from being blocked due to deformation of the seat cushion 11 .

FIG. 6 shows a top view of a part of the ventilation device shown in FIG. 5 . FIG. 7 shows a cross-sectional view along the section line B-B in FIG. 6 .

According to an exemplary embodiment of the present invention, the first fluid connection structure 241 is connected to the first gas guiding channel 22 through its first port 2412 . Similarly, the second fluid connection structure 242 is connected with the second gas guiding channel 23 through its second port 2422 .

According to an exemplary embodiment of the present invention, the air flow resistance passing through the first air guiding channel 22 and/or the second air guiding channel 23 may be smaller than the air flow resistance passing through the seat cushion 11 directly.

As mentioned above, the first gas guide channel 22 and the second gas guide channel 23 lead to the surface of the seat cushion 11 through specially formed holes (larger than the gap of the material of the seat cushion 11 itself), and the flow resistance of this specially formed flow path is relatively large. lower. The cushion 11 is breathable, in this case, when the airflow driving device 21 is working, there will be an air flow directly through the cushion 11, because the connector 24 has a first opening 2411 and a second opening 2411 directly facing the cushion 11. Opening 2421. The seat 1 thus formed has a good ventilation effect.

According to an exemplary embodiment of the present invention, the connector 24 is disposed above the airflow driving device 21 .

According to an exemplary embodiment of the present invention, the airflow driving device 21 is fixed relative to the framework 12 , ie, the position remains unchanged relative to the framework 12 . For example, it can be fixed to the skeleton 12 .

According to an exemplary embodiment of the present invention, the airflow driving device 21 is a fan. Of course, those skilled in the art can understand that the airflow driving device 21 is not limited thereto.

According to an exemplary embodiment of the present invention, the supporting structure 243 is located above the airflow driving device 21 . In this way, it is possible to prevent the cushion 11 from deforming (collapsing) and being directly pressed against the airflow driving device 21 after being loaded. In particular, the airflow driving device 21 is easily damaged when squeezed to the gas inlet or gas outlet of the airflow driving device 21 . To this end, preferably, the support structure 243 is located directly above the gas inlet 211 and/or the gas outlet 212 .

According to an exemplary embodiment of the present invention, the connector 24 may be configured in a strip shape and arranged across the airflow driving device 21 .

According to an exemplary embodiment of the present invention, the support structure 243 may be located between the first fluid connection structure 241 and the second fluid connection structure 242 . Preferably, the first fluid connection structure 241 and the second fluid connection structure 242 may extend in opposite directions relative to the support structure 243 . In particular, the first fluid connection structure 241 and the second fluid connection structure 242 are arranged symmetrically with respect to the support structure 243 .

According to an exemplary embodiment of the present invention, the support structure 243 is provided with a recess 2431 on its top side. In this way, the deformation of the cushion 11 can be accommodated, resulting in better comfort.

According to an exemplary embodiment of the present invention, the supporting structure 243 is provided with a convex portion 2432 on a side thereof facing the airflow driving device 21 .

According to an exemplary embodiment of the present invention, the connector 24 is integrally formed.

According to an exemplary embodiment of the present invention, the connector 24 is made of a rigid material. In this way, a reliable supporting effect can be produced, so that the airflow driving device 21 can be reliably protected and the smoothness of the corresponding flow path can be ensured.

According to an exemplary embodiment of the present invention, as shown in FIG. 1 , the connectors 24 may be arranged along the width direction of the seat 1 . In particular, in this case it is further advantageous if the connector 24 is again arranged at the knee area of the seat 1 as shown in FIG. 3 . This is because the force normally borne by this area is not large, and the body contact with the occupant is not close, and the existence of the connector 24 has little influence on the comfort.

As shown in FIG. 5 , according to an exemplary embodiment of the present invention, the protrusion 2432 may be oriented toward the gas inlet 211 or the gas outlet 212 to define a first fluid connection structure 241 leading from the gas inlet 211 or the gas outlet 212 . A flow path 2433 and a second flow path 2434 leading to the second fluid connection 242 . In this way, two flow paths are branched from the air flow driving device 21 and one air flow driving device 21 can be shared.

According to an exemplary embodiment of the present invention, the recess 2431 may be configured to have a V-shaped cross section. The protrusion 2432 may also be configured to have a V-shaped cross-section. In this way, the supporting structure 243 also correspondingly has a V-shaped cross section.

As shown in FIG. 5 , according to an exemplary embodiment of the present invention, the connector 24 may have a communication port arranged around the gas inlet 211 or the gas outlet 212 on the side facing the airflow driving device 21 .

According to an exemplary embodiment of the present invention, the ventilation device 2 may further include a bearing plate 25, and the connector 24 and the airflow driving device 21 are respectively installed on the bearing plate 25 from opposite sides. The carrier plate 25 can be mounted on the framework 12, for example.

As shown in FIG. 5, according to an exemplary embodiment of the present invention, the connector 24 may include a first plate 244 and a second plate 245 arranged parallel to each other and vertically, and a support structure 243 is connected between the first plate 244 and the second plate 245. between plates 245 .

As shown in FIG. 5 , the connector 24 may be completely open on the side facing the airflow driving device 21 . In other words, there is no structure connected between the first plate 244 and the second plate 245 on this side.

According to an exemplary embodiment of the present invention, as shown in FIG. 5 , the carrier board 25 is configured with a through hole 251 , and the lower edge of the connector 24 is provided with a positioning structure 246 embedded in the through hole 251 and positioned relative to the through hole 251 . In this way, the connector 24 can be installed more conveniently, and can be fixed more reliably.

In this case, it is advantageous if the gas inlet 211 or the gas outlet 212 is arranged in the through hole 251 .

As shown in FIG. 5, according to an exemplary embodiment of the present invention, the connector 24 may be configured in an H shape.

According to an exemplary embodiment of the present invention, the first fluid connection structure 241 is in interference fit with the first gas guiding channel 22 . In this way, a certain supporting effect on the first gas guide channel 22 can be prevented.

Similarly, the second fluid connection structure 242 has an interference fit with the second gas guide channel 23 .

As shown in FIG. 4 , according to an exemplary embodiment of the present invention, in the unloaded state of the seat 1 , there is a free space above at least a part of the connector 24 , especially the entire top thereof, and the first opening 2411 and/or The second opening 2421 leads to free space. In this case, sufficient collapse space can be provided for the corresponding part of the seat cushion 11 in this area.

According to an exemplary embodiment of the present invention, the ventilation device 2 may be configured as a suction ventilation device or a blowing ventilation device. Shown in Figure 4 is an extraction ventilation unit.

According to an exemplary embodiment of the present invention, the height of the connector 24 is less than 20mm. Those skilled in the art can understand that by designing the height of the connector 24 reasonably, the adverse effect of the connector 24 on comfort can be reduced.

The width of the connector 24 can also be appropriately designed to balance the corresponding protective function and comfort.

Through the connector configured in this way, even if the seat cushion 11 partially enters the corresponding fluid connection structure through the corresponding opening due to collapse and deformation, it will not block the gas inlet 211 or the gas outlet 212 of the airflow driving device 21, and it can always ensure that at least There will be a flow path through the cushion 11 . The open design of the upper part of the connector will not significantly affect the comfort of the seat 1 .

In order to facilitate understanding of the present invention, FIG. 8 shows a bottom perspective view of the seat when the ventilation device is not installed.

According to the second aspect of the present invention, there is further provided a ventilation system for a seat of a vehicle, wherein the ventilation system includes the above-mentioned ventilation device 2 . At this time, the ventilation system may also include other parts not shown in the figure, such as a controller for controlling the airflow driving device 21 .

According to a third aspect of the present invention, there is also provided a seat for a vehicle, wherein the seat includes the above-mentioned ventilation device 2 or the above-mentioned ventilation system.

Those skilled in the art can understand that although the ventilation device is described above in conjunction with the seat, the above ventilation device can also be applied to other parts of the seat, such as the ventilation of the seat back. This is because there are similar application scenarios and application requirements for the seat back that is in contact with the occupants.

While specific embodiments of the invention have been described in detail, these have been presented for purposes of illustration only and should not be construed as limiting the scope of the invention. Various alternatives, changes and modifications can be devised without departing from the spirit and scope of the invention.

Claims (15)

1. A ventilation device (2) for a seat (1) of a vehicle, wherein the seat (1) has a cushion (11) and a frame (12) for supporting the cushion (11), the The ventilation unit (2) consists of:

   an air flow driving device (21) having a gas inlet (211) for sucking gas and a gas outlet (212) for discharging gas;

   a first air guiding channel (22) in fluid communication with a first ventilation area (13) of the seat (1) to be ventilated; and

   a connector (24), which has a first fluid connection structure (241) for fluidly connecting the gas flow driving device (21) and the first gas guiding channel (22),

   Wherein, the first fluid connection structure (241) is provided with a first opening (2411) opening upwards and facing the cushion (11), and the connector (24) is provided for preventing the seat cushion ( 11) Deformed to block the first fluid connection structure (241) and/or the support structure (243) of said gas inlet (211) or said gas outlet (212).
2. Ventilation device (2) according to claim 1, wherein,

   The ventilation device (2) further comprises a second air guiding channel (23) in fluid communication with the second ventilation area (14) of the seat (1) to be ventilated; and

   The connector (24) also has a second fluid connection structure (242) for fluidly connecting the airflow driving device (21) and the second gas guiding channel (23),

   Wherein, the second fluid connection structure (242) is provided with a second opening (2421) opening upwards and facing the cushion (11), and the support structure (243) is further configured to prevent the The cushion (11) is deformed to block the second fluid connection structure (242).
3. Ventilation device (2) according to claim 1 or 2, wherein,

   The first fluid connection structure (241) is connected to the first gas guiding channel (22) through its first port (2412); and/or

   The second fluid connection structure (242) is connected to the second gas guiding channel (23) through its second port (2422); and/or

   The air flow resistance passing through the first air guiding channel (22) and/or the second air guiding channel (23) is smaller than the air flow resistance directly passing through the cushion (11); and/or

   The cushion (11) is breathable.
4. Ventilation device (2) according to any one of claims 1-3, wherein,

   The connector (24) is arranged above the airflow driving device (21); and/or

   The airflow driving device (21) is fixed relative to the skeleton (12); and/or

   The airflow driving device (21) is a fan; and/or

   said support structure (243) is located above said airflow driving device (21); and/or

   The connector (24) is configured as a strip and arranged across the airflow driving device (21).
5. Ventilation device (2) according to any one of claims 2-4, wherein,

   The support structure (243) is located between the first fluid connection structure (241) and the second fluid connection structure (242); and/or

   The support structure (243) is located directly above the gas inlet (211) and/or the gas outlet (212); and/or

   Said first fluid connection structure (241) and said second fluid connection structure (242) are arranged symmetrically with respect to said support structure (243); and/or

   The first fluid connection structure (241) and the second fluid connection structure (242) extend in opposite directions with respect to the support structure (243).
6. Ventilation device (2) according to any one of claims 1-5, wherein,

   said support structure (243) is provided with a recess (2431) on its top side; and/or

   The supporting structure (243) is provided with a convex portion (2432) on its side facing the airflow driving device (21); and/or

   said connector (24) is integrally formed; and/or

   said connector (24) is made of hard material; and/or

   The connectors (24) are arranged along the width direction of the seat (1).
7. Ventilation device (2) according to claim 6, wherein,

   The protrusion (2432) is oriented towards the gas inlet (211) or the gas outlet (212) to define a passage from the gas inlet (211) or the gas outlet (212) to the first fluid connection A first flow path (2433) of the structure (241) and a second flow path (2434) leading to said second fluid connection structure (242).
8. Ventilation device (2) according to claim 6 or 7, wherein,

   The recess (2431) is configured to have a V-shaped cross-section; and/or

   The protrusion (2432) is configured to have a V-shaped cross section.
9. Ventilation device (2) according to any one of claims 1-8, wherein,

   The connector (24) is provided with a communication port arranged around the gas inlet (211) or the gas outlet (212) on its side facing the airflow driving device (21); and/or

   The ventilation device (2) further includes a bearing plate (25), and the connector (24) and the airflow driving device (21) are respectively installed on the bearing plate (25) from opposite sides.
10. Ventilation device (2) according to claim 9, wherein,

    The connector (24) includes a first plate (244) and a second plate (245) arranged parallel to each other and vertically, and the support structure (243) is connected between the first plate (244) and the second plate (245). between two plates (245); and/or

    The connector (24) is completely open on the side facing the airflow driving device (21); and/or

    The carrying plate (25) is configured with a through hole (251), and the lower edge of the connector (24) is provided with a positioning structure ( 246).
11. The ventilation device (2) according to claim 10, wherein,

    The gas inlet (211) or the gas outlet (212) is arranged in the through hole (251); and/or

    The connector (24) is configured in an H shape.
12. Ventilation device (2) according to any one of claims 1-11, wherein,

    The first fluid connection structure (241) has an interference fit with the first gas guiding channel (22); and/or

    The second fluid connection structure (242) is in interference fit with the second gas guiding channel (23).
13. Ventilation device (2) according to any one of claims 1-12, wherein,

    In the unloaded state of the seat (1), there is a free space above at least a part of the connector (24), and the first opening (2411) and/or the second opening (2421) leads to the free space; and/or

    said ventilation device (2) is configured to also be able to generate a gas flow through the interstices of said seat cushion (11); and/or

    said connector (24) is arranged at the knee area of said seat (1); and/or

    The ventilation device (2) is configured as a suction ventilation device or a blowing ventilation device; and/or

    The height of the connector (24) is less than 20mm.
14. A ventilation system for a seat (1) of a vehicle, wherein the ventilation system comprises a ventilation device (2) according to any one of claims 1-13.
15. A seat (1) for a vehicle, wherein the seat (1) comprises a ventilation device (2) according to any one of claims 1-13 or a ventilation system according to claim 14 .

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