Seat ventilation system and vehicle

Abstract

The utility model discloses a seat ventilation system and a vehicle, the seat ventilation system comprises a ventilation assembly, a fan and an air inlet pipeline, the ventilation assembly is assembled between a seat foam and a seat back plate of a seat, the ventilation assembly comprises a flow channel, a first air inlet and a first air outlet, and the first air inlet and the first air outlet are communicated with the flow channel. The first air outlet is used for being communicated with a seat foaming vent hole; the fan is fixed relative to the ventilation assembly and comprises a second air inlet, a second air outlet and a rotating body used for driving air to flow from the second air inlet to the second air outlet, and the second air outlet communicates with the first air inlet through an air outlet pipeline; the air inlet pipeline is connected to the fan and communicated with the second air inlet, and the air inlet pipeline extends out of the bottom of the seat and is used for guiding air outside the seat to the second air inlet; air flow separation or turbulent flow can be reduced, air can enter the fan more evenly and stably, flowing resistance is reduced, the working efficiency of the fan is improved, and then the ventilation performance of the backrest can be improved.

Description

Technical Field

[0001] This utility model relates to the field of seat ventilation technology, and in particular to a seat ventilation system and a vehicle. Background Technology

[0002] Car seat ventilation is a very important comfort system. Seat ventilation systems have the functions of cooling and dehumidifying, which can ensure the comfort of drivers and passengers in hot summer weather. Many of these systems use a blowing design, which has advantages such as better subjective feeling and good performance. However, because the backrest fan is located in a closed space, it cannot quickly exchange with the outside air when the ventilation system is working, resulting in poor backrest ventilation performance.

[0003] Therefore, how to improve the ventilation performance of the backrest is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide a seat ventilation system and vehicle that can improve the ventilation performance of the backrest.

[0005] To achieve the above objectives, this utility model provides a seat ventilation system, comprising:

[0006] A ventilation assembly is fitted between the seat foam and the seat back panel of the seat. The ventilation assembly includes a flow channel, a first air inlet communicating with the flow channel, and a first air outlet. The first air outlet is used to communicate with the vent holes of the seat foam.

[0007] The fan is fixed relative to the ventilation components. The fan includes a second air inlet, a second air outlet, and a rotating body for driving gas from the second air inlet to the second air outlet. The second air outlet is connected to the first air inlet through an air outlet duct.

[0008] An air intake duct, connected to the fan and connected to the second air intake, extends out of the bottom of the seat and is used to guide the air outside the seat to the second air intake.

[0009] In one possible implementation, the fan includes a first side facing the seat back panel, the first side having a first through hole to form a second air inlet, and the fan having a protective grille located at the second air inlet and partially protruding from the first side.

[0010] The intake duct has a channel inside, and a second through hole connected to the channel is opened on the side of the intake duct facing the fan. The intake duct can fit against the first side and allow the protective grille to extend into the channel through the second through hole.

[0011] In one possible implementation, a baffle plate is provided inside the intake duct. The baffle plate extends along the extension direction of the intake duct to divide the channel into adjacent first and second channels, and both the first and second channels are connected to the second through hole.

[0012] In one possible implementation, the air intake duct includes a first ventilation section, a second ventilation section, and a third ventilation section connected sequentially from top to bottom. The first ventilation section includes a first panel facing the first side and a second panel facing away from the first side. A second through hole is opened in the first panel. The first panel and the second panel are parallel. The seat back panel can abut against the second panel so that the first panel presses against the first side.

[0013] In one possible implementation, the third ventilation section has an air inlet at one end opposite to the second ventilation section. The air inlet is used for gas to flow into the first and second channels. The bottom of the seat has a mounting groove adapted to the third ventilation section. The mounting groove is used for the third ventilation section to pass through so that the air inlet is located outside the seat.

[0014] In one possible implementation, the second ventilation section is bent relative to the first ventilation section toward the side opposite to the seat back panel.

[0015] In one possible implementation, the ventilation assembly includes a ventilation bag and a ventilation sealing layer. The ventilation bag has several third through holes on the side away from the ventilation sealing layer to form a first air outlet. The ventilation sealing layer has a fourth through hole on the side away from the ventilation bag to form a first air inlet. The ventilation bag has several grooves on the side facing the ventilation sealing layer to form a flow channel. The end of the air outlet pipe away from the second air outlet is provided with a fixing plate, which is fixed to the third through hole for gas to flow along the air outlet pipe and the third through hole into the flow channel.

[0016] In one possible implementation, the ventilation bag is further provided with a collection groove on the side facing the ventilation sealing layer. The collection groove corresponds to the fourth through hole and is connected to all the tanks so that the gas entering the collection groove can flow to all the tanks.

[0017] In one possible implementation, the fan further includes a second side facing the ventilation sealing layer, the outer periphery of which has a protrusion with a mounting hole, and a connector between the protrusion and the ventilation sealing layer. The connector includes a snap-fit ​​portion that can be engaged in the mounting hole and an abutting portion that abuts against the ventilation sealing layer. The connector is used to restrict the movement of the fan toward the ventilation sealing layer.

[0018] A vehicle comprising a seat ventilation system according to any of the above.

[0019] Compared to the aforementioned background technology, the seat ventilation system provided by this utility model includes a ventilation component, a fan, and an air intake duct. The ventilation component is assembled between the seat foam and the seat back panel. The ventilation component includes a flow channel, a first air inlet and a first air outlet connected to the flow channel. The first air outlet is used to communicate with the ventilation holes of the seat foam. The fan is fixed relative to the ventilation component and includes a second air inlet, a second air outlet, and a rotating body for driving gas from the second air inlet to the second air outlet. The second air outlet is connected to the first air inlet through an air outlet duct. The air intake duct is connected to the fan and connected to the second air inlet. The air intake duct extends out of the bottom of the seat and is used to guide the gas outside the seat to the second air inlet.

[0020] Specifically, driven by the rotating body, the gas flows sequentially through the air intake pipe, fan, and ventilation components to the air vents in the seat foam. The air intake pipe is connected to the second air intake of the fan, allowing the gas outside the seat to flow directionally to the second air intake. Compared to not having an air intake pipe, this reduces airflow separation or turbulence, allowing air to enter the fan more evenly and stably, reducing flow resistance, improving fan efficiency, and thus improving the ventilation performance of the backrest. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the seat provided in an embodiment of the present utility model;

[0023] Figure 2 This is a structural schematic diagram of the seat provided in an embodiment of the present utility model from another perspective;

[0024] Figure 3 This is a schematic diagram of the structure of the seat ventilation system provided in an embodiment of the present utility model;

[0025] Figure 4 A schematic diagram of the seat ventilation system provided in this embodiment of the utility model without the air intake pipe installed;

[0026] Figure 5 This is a schematic diagram of the structure of the ventilation bag provided in an embodiment of the present utility model;

[0027] Figure 6 This is a schematic diagram of the assembled fan and air intake pipe provided in an embodiment of the present utility model.

[0028] Figure 7 This is a schematic diagram of the air intake pipe provided in an embodiment of the present utility model;

[0029] Figure 8 This is a schematic diagram of the air intake pipe provided in an embodiment of the present invention from another perspective.

[0030] in:

[0031] 100 - Seat, 110 - Seat foam, 111 - Vent hole, 120 - Seat back panel;

[0032] 200 - Fan, 210 - Protective grille, 220 - Protrusion;

[0033] 300 - Exhaust duct; 310 - Mounting plate;

[0034] 400-Inlet pipe, 410-Second through hole, 420-Baffle plate, 430-First channel, 440-Second channel, 450-First ventilation section, 451-First panel, 452-Second panel, 460-Second ventilation section, 470-Third ventilation section;

[0035] 500-Ventilation bag, 510-Third through hole, 520-Trench body, 530-Collection trough;

[0036] 600 - Ventilation sealing layer;

[0037] 700 - Connector. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left" and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the indicated position or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations of this utility model.

[0041] The purpose of this invention is to provide a seat ventilation system and vehicle that can improve the ventilation performance of the backrest.

[0042] Please see Figures 1 to 8 To achieve the above objectives, this utility model provides a seat ventilation system, including a ventilation component, a fan 200 and an air intake duct 400. The ventilation component is assembled between the seat foam 110 and the seat back panel 120 of the seat 100. The ventilation component includes a flow channel, a first air inlet and a first air outlet connected to the flow channel. The first air outlet is used to connect with the ventilation holes of the seat foam 110.

[0043] The fan 200 is located on the side of the ventilation assembly away from the seat foam 110 and is fixed relative to the ventilation assembly. The fan 200 includes a second air inlet, a second air outlet, and a rotating body for driving gas from the second air inlet to the second air outlet. The rotating body includes a rotor and fan blades connected to the rotor. The rotation of the rotor drives the fan blades to rotate synchronously, driving the gas flow. The second air outlet is connected to the first air inlet through the air outlet duct 300.

[0044] The air intake duct 400 is connected to the fan 200 and connected to the second air intake. The air intake duct 400 extends out of the bottom of the seat 100 and is used to guide the air outside the seat 100 to the second air intake. Compared with the existing technology that uses a sunroof design on the back panel, extending the air intake duct 400 out of the bottom of the seat 100 can achieve rapid exchange of air between the sealed space inside the backrest and the outside air without affecting the appearance of the seat 100.

[0045] Driven by the rotating body, the gas flows sequentially through the air intake pipe 400, the fan 200, and the ventilation component to the air vent of the seat foam 110. The air intake pipe 400 is connected to the second air intake of the fan 200, which is used to direct the gas outside the seat 100 to the second air intake. Compared with the absence of an air intake pipe 400, this reduces airflow separation or turbulence, allowing the air to enter the fan 200 more evenly and stably, reducing flow resistance, improving the working efficiency of the fan 200, and thus improving the ventilation performance of the backrest.

[0046] In one possible implementation, the fan 200 includes a first side facing the seat back panel 120, a first through hole on the first side to form a second air inlet, and the fan 200 has a protective grille 210 located at the second air inlet and partially protruding from the first side; the air intake duct 400 has a channel inside, and the side of the air intake duct 400 facing the fan 200 has a second through hole 410 communicating with the channel, the air intake duct 400 can fit against the first side and allow the protective grille 210 to extend into the channel through the second through hole 410.

[0047] The protective grille 210 located at the second air inlet of the fan 200 and partially protruding from the first side allows for easy fixation of the air intake pipe 400 while limiting its position, preventing the air intake pipe 400 from shifting vertically relative to the fan 200. This ensures that the gas in the channel can enter the second air inlet of the fan 200 as much as possible through the second through hole 410. The air intake pipe 400 can be made of an elastic material that can deform when compressed, thereby improving the sealing effect when the air intake pipe 400 and the first side are in contact. At the same time, the elastic material air intake pipe 400 can absorb the vibration generated during the operation of the fan 200, thereby reducing or even preventing the vibration from being transmitted to other parts of the seat 100.

[0048] In one possible implementation, a baffle plate 420 is provided inside the air intake duct 400. The baffle plate 420 extends along the extension direction of the air intake duct 400 to divide the channel into adjacent first channels 430 and second channels 440. Both the first channels 430 and the second channels 440 are connected to the second through hole 410, which can avoid excessive flow velocity or uneven local pressure in the channel and reduce turbulence and energy loss. By dividing the channel into independent first channels 430 and second channels 440, even if one of the first channels 430 and the second channels 440 is blocked or damaged, the other of the first channels 430 and the second channels 440 can still function to ensure the normal operation of the ventilation function of the backrest.

[0049] To further increase the intake volume, a narrow opening with a reduced cross-sectional size can be set in the middle section of the first channel 430 and the second channel 440. This can improve the local pressure distribution, increase the gas flow rate by utilizing the Venturi effect, and increase the intake volume per unit time.

[0050] In one possible implementation, the air intake duct 400 includes a first ventilation section 450, a second ventilation section 460, and a third ventilation section 470 connected sequentially from top to bottom. The first ventilation section 450 includes a first panel 451 facing the first side and a second panel 452 facing away from the first side. A second through hole 410 is formed in the first panel 451. The first panel 451 and the second panel 452 are parallel. The seat back panel 120 can abut against the second panel 452 so that the first panel 451 presses against the first side. The third ventilation section 470 has an air inlet at one end facing away from the second ventilation section 460. The air inlet is used for gas to flow into the first channel 430 and the second channel 440. The bottom of the seat 100 is provided with a mounting groove adapted to the third ventilation section 470. The mounting groove is used for the third ventilation section 470 to pass through so that the air inlet is located outside the seat 100. A filter screen is provided at the air inlet to limit impurities from entering the channel and to reduce or even avoid channel blockage.

[0051] By setting the distance between the first panel 451 and the second panel 452 in the first ventilation section 450 to be less than the distance between the seat back panel 120 and the first side of the fan 200, the seat back panel 120, after being installed on the seat 100, can clamp the first ventilation section 450 located between the seat back panel 120 and the fan 200 together with the first side of the fan 200. This fixes the air intake pipe 400 and allows the first ventilation section 450 to fit tightly against the first side of the fan 200. The guide plate 420 extending to the second through hole 410 can provide some support for the compressed part of the first ventilation section 450, preventing the first panel 451 and the second panel 452 from being compressed. The fit ensures that the deformation of the first ventilation section 450 is minimal during compression, so as not to affect its original function. The third ventilation section 470 is adapted to the mounting groove, and the extension direction of the third ventilation section 470 should be consistent with the extension direction of the mounting groove. The third ventilation section 470 can be fixed through the mounting groove, and the fixing method includes, but is not limited to, bonding, interference fit, screw connection, etc. The second ventilation section 460 is used to connect the first ventilation section 450 and the third ventilation section 470. The second ventilation section 460 is bent relative to the first ventilation section 450 toward the side away from the seat back panel 120, so as to fit into the space between the seat back panel 120 and the ventilation sealing layer 600 described below.

[0052] The inner wall of the channel is smooth, and the connection between the second ventilation section 460 and the first ventilation section 450 and the connection between the second ventilation section 460 and the third ventilation section 470 in the channel are all smoothly transitioned, which can reduce the turbulence noise generated by the friction between the gas and the inner wall of the channel.

[0053] In one possible implementation, the ventilation assembly includes a ventilation bag 500 and a ventilation sealing layer 600. The ventilation bag 500 has several third through holes 510 on the side away from the ventilation sealing layer 600 to form a first air outlet. The ventilation sealing layer 600 has a fourth through hole on the side away from the ventilation bag 500 to form a first air inlet. The ventilation bag 500 has several grooves 520 on the side facing the ventilation sealing layer 600 to form a flow channel. The end of the air outlet duct 300 away from the second air outlet is provided with a fixing plate 310. The fixing plate 310 is fixed to the third through hole 510 to facilitate the fixation of the position of the air outlet duct 300 relative to the ventilation sealing layer 600. This allows gas to flow along the air outlet duct 300 and the third through hole 510 into the flow channel. At the same time, the fixed connection between the air outlet duct 300 and the fan 200 fixes the position of the fan 200 relative to the ventilation sealing layer 600.

[0054] Furthermore, the fan 200 also includes a second side facing the ventilation sealing layer 600. The outer periphery of the second side is provided with a protrusion 220, the protrusion 220 is provided with a mounting hole, and a connector 700 is provided between the protrusion 220 and the ventilation sealing layer 600. The connector 700 includes a snap-fit ​​part that can be snapped into the mounting hole and an abutting part that abuts against the ventilation sealing layer 600. The connector 700 is used to restrict the movement of the fan 200 toward the ventilation sealing layer 600.

[0055] The connector 700 abuts against the ventilation sealing layer 600, and the snap-fit ​​portion of the connector 700 snaps into the mounting hole, so that the snap-fit ​​portion and the ventilation sealing layer 600 always maintain a certain distance. This ensures that the fan 200 and the ventilation sealing layer 600 always maintain a certain distance. During the process of the seat back panel 120 pressing the first ventilation section 450 against the first side of the fan 200, the connector 700 can provide a certain counterforce to the fan 200 to prevent the fan 200 from excessively moving towards the ventilation sealing layer 600 during the installation of the seat back panel 120. The connector 700 can be, but is not limited to, a rubber nail, which has a certain degree of elasticity and can absorb the vibration when the fan 200 rotates to reduce noise.

[0056] In one possible implementation, the ventilation bag 500 is further provided with a collecting groove 530 on the side facing the ventilation sealing layer 600. The collecting groove 530 corresponds to the fourth through hole and is connected to all the grooves 520 so that the gas entering the collecting groove 530 can flow to all the grooves 520, which can balance the gas pressure in each groove 520 and prevent the gas from preferentially flowing to the area with less resistance due to uneven pressure. This ensures that the gas is distributed as evenly as possible to all the grooves 520. The cross-sectional dimension of the collecting groove 530 should be slightly larger than the cross-sectional dimension of the first air inlet to avoid blocking the gas at the first air inlet.

[0057] A vehicle including the aforementioned seat ventilation system also possesses all the beneficial effects of the seat ventilation system. The remaining components of the vehicle can be referred to in the prior art, and will not be described in detail here.

[0058] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0059] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0060] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A seat ventilation system, characterized in that, include: A ventilation assembly is fitted between the seat foam (110) and the seat back panel (120) of the seat (100). The ventilation assembly includes a flow channel, a first air inlet and a first air outlet communicating with the flow channel. The first air outlet is used to communicate with the vent (111) of the seat foam (110). A fan (200) is fixed relative to the ventilation assembly. The fan (200) includes a second air inlet, a second air outlet, and a rotating body for driving gas from the second air inlet to the second air outlet. The second air outlet is connected to the first air inlet via an air outlet duct (300). An air intake duct (400) is connected to the fan (200) and communicates with the second air intake. The air intake duct (400) extends out of the bottom of the seat (100) and is used to guide the gas outside the seat (100) to the second air intake.

2. The seat ventilation system according to claim 1, characterized in that, The fan (200) includes a first side facing the seat back panel (120), the first side having a first through hole to form a second air inlet, and the fan (200) having a protective grille (210) located at the second air inlet and partially protruding from the first side. The air intake pipe (400) has a channel inside, and the air intake pipe (400) has a second through hole (410) connected to the channel on the side facing the fan (200). The air intake pipe (400) can fit against the first side and allow the protective grille (210) to extend into the channel through the second through hole (410).

3. The seat ventilation system according to claim 2, characterized in that, The intake pipe (400) is provided with a guide plate (420), which extends along the extension direction of the intake pipe (400) to divide the channel into adjacent first channel (430) and second channel (440), and both the first channel (430) and the second channel (440) are connected to the second through hole (410).

4. The seat ventilation system according to claim 3, characterized in that, The air intake duct (400) includes a first ventilation section (450), a second ventilation section (460) and a third ventilation section (470) connected sequentially from top to bottom. The first ventilation section (450) includes a first panel (451) facing the first side and a second panel (452) facing away from the first side. The second through hole (410) is opened on the first panel (451). The first panel (451) and the second panel (452) are parallel. The seat back panel (120) can abut against the second panel (452) so that the first panel (451) presses against the first side.

5. The seat ventilation system according to claim 4, characterized in that, The third ventilation section (470) has an air inlet at one end opposite to the second ventilation section (460). The air inlet is used for gas to flow into the first channel (430) and the second channel (440). The bottom of the seat (100) is provided with a mounting groove that is adapted to the third ventilation section (470). The mounting groove is used for the third ventilation section (470) to pass through so that the air inlet is located outside the seat (100).

6. The seat ventilation system according to claim 4, characterized in that, The second ventilation section (460) is bent toward the side away from the seat back panel (120) relative to the first ventilation section (450).

7. The seat ventilation system according to any one of claims 1-6, characterized in that, The ventilation assembly includes a ventilation bag (500) and a ventilation sealing layer (600). The ventilation bag (500) has a plurality of third through holes (510) on the side away from the ventilation sealing layer (600) to form the first air outlet. The ventilation sealing layer (600) has a fourth through hole on the side away from the ventilation bag (500) to form the first air inlet. The ventilation bag (500) has a plurality of grooves (520) on the side facing the ventilation sealing layer (600) to form the flow channel. The air outlet pipe (300) has a fixing plate (310) at the end away from the second air outlet. The fixing plate (310) is fixed to the third through hole (510) for gas to flow along the air outlet pipe (300) and the third through hole (510) into the flow channel.

8. The seat ventilation system according to claim 7, characterized in that, The ventilation bag (500) is further provided with a collection groove (530) on the side facing the ventilation sealing layer (600). The collection groove (530) corresponds to the fourth through hole and is connected to all the tanks (520) so that the gas entering the collection groove (530) can flow to all the tanks (520).

9. The seat ventilation system according to claim 7, characterized in that, The fan (200) also includes a second side facing the ventilation sealing layer (600), and a protrusion (220) is provided on the outer periphery of the second side. The protrusion (220) is provided with a mounting hole. A connector (700) is provided between the protrusion (220) and the ventilation sealing layer (600). The connector (700) includes a snap-fit ​​part that can be snapped into the mounting hole and an abutting part that abuts against the ventilation sealing layer (600). The connector (700) is used to restrict the movement of the fan (200) toward the ventilation sealing layer (600).

10. A vehicle, characterized in that, Includes the seat ventilation system as described in any one of claims 1-9.

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