Seat ventilation device and seat

Abstract

The utility model discloses a seat ventilation device, which relates to the technical field of seats and comprises a bag body, a ventilation cavity is arranged in the bag body, a plurality of first air holes are arranged on one side of the bag body close to a seat, a second air hole is further arranged on the bag body, and a ventilation driving mechanism is arranged at the second air hole. The ventilation driving mechanism can enable air to pass through the first air holes and flow through the ventilation cavity to reach the second air holes, or enable the air to pass through the ventilation cavity to reach the first air holes through the second air holes, and the sizes of the first air holes are increased along with increasing of the distance between the first air holes and the ventilation driving mechanism. The uniformity of air passing through the first air holes is improved, and the seat ventilation effect is improved. The utility model further discloses a seat which comprises the seat ventilation device, and the seat ventilation function is achieved through the seat ventilation device.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, in particular to a seat ventilation device and a seat. Background Art

[0002] The ventilation function of seats has become an important consideration criterion for seat comfort. Seat ventilation uses a fan to suck in air and then introduce it into a ventilation bag. The air flow then penetrates upward from the surface of the ventilation bag and flows towards the perforated seat surface, enabling the occupant to use the ventilation function to disperse the sweat on the buttocks and back in hot weather, bringing comfort to the passengers. The ventilation bag is made of film - attached non - woven fabric, and a 3D spacer fabric material is installed inside it. The 3D spacer fabric has good support and breathability, can support the cavity inside the ventilation bag, and increase the gas channels inside the cavity to keep the gas flowing smoothly inside the ventilation bag. Chinese Utility Model Patent CN218430961U discloses an air bag for an automobile seat ventilation system. A plurality of holes are opened on the side of the air bag surface facing the seat foam to discharge gas. However, the sizes of the holes are the same. As the distance from the holes to the air inlet increases, the air output volume decreases, resulting in uneven air output volumes from the holes and affecting the ventilation effect. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a seat ventilation device and a seat to solve the problems existing in the above - mentioned prior art, improve the uniformity of the air volume passing through the gas discharged from each air hole, and improve the seat ventilation effect.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] The utility model provides a seat ventilation device, including a bag body. A ventilation cavity is arranged inside the bag body. A plurality of first air holes are opened on one side of the bag body close to the seat surface. A second air hole is also opened on the bag body. A ventilation driving mechanism is arranged at the second air hole. The ventilation driving mechanism can make the gas pass through each of the first air holes, flow through the ventilation cavity, and reach the second air hole, or make the gas pass through the second air hole, flow through the ventilation cavity, and reach each of the first air holes. The size of each of the first air holes increases as the distance to the ventilation driving mechanism increases.

[0006] Preferably, it further includes a first connecting piece for fixedly connecting the bag body to the seat frame.

[0007] Preferably, it further includes a fixing plate and a first connecting piece. The fixing plate is used for fixedly connecting to one side of the bag body close to the seat frame. The ventilation driving mechanism is arranged on the side of the fixing plate close to the seat frame. The first connecting piece is used for fixedly connecting the fixing plate to the seat frame.

[0008] Preferably, it further includes a protective layer which can cover at least a part of the area on the side of the bag body close to the seat frame, and the protective layer is fixedly connected to the bag body.

[0009] Preferably, the fixing plate and the protective layer are arranged side by side on the side of the bag body close to the seat frame, and the side edges of the protective layer adjacent to the fixing plate are fixedly connected.

[0010] Preferably, the protective layer can cover one side of the bag body close to the seat frame, and one end of the protective layer extends between the fixing plate and the bag body.

[0011] Preferably, fixing holes are penetrated through the side wall of the bag body close to the seat frame, the protective layer and the fixing plate, and the first connecting member passes through the fixing holes in the bag body, the protective layer and the fixing plate and fixes the bag body, the protective layer and the fixing plate on the seat frame.

[0012] Preferably, a third air hole corresponding to the second air hole is formed in the fixing plate, and the ventilation driving mechanism is arranged on the side of the third air hole close to the seat frame.

[0013] Preferably, a third air hole corresponding to the second air hole is formed in the fixing plate, the ventilation driving mechanism is arranged on the side of the third air hole close to the seat frame, a fourth air hole corresponding to the second air hole is formed in the end of the protective layer extending between the fixing plate and the bag body, and the edge of the fourth air hole close to the seat surface is fixedly connected to the edge at the second air hole, and the other side is fixedly connected to the edge of the third air hole.

[0014] The present invention also provides a seat, including a seat body and the seat ventilation device as described in any one of the above.

[0015] The present invention has achieved the following technical effects compared with the prior art:

[0016] For the seat ventilation device and the seat provided by the present invention, the ventilation driving mechanism can make the gas pass through each first air hole and flow through the ventilation cavity to reach the second air hole, or make the gas flow through the ventilation cavity from the second air hole to reach each first air hole. Since the first air holes of the same size obtain less air volume brought by the ventilation driving mechanism for the first air holes farther away from the ventilation driving mechanism, by making the sizes of the first air holes increase with the increase of the distance to the ventilation driving mechanism, the air volume of the first air holes farther away from the driving mechanism can be appropriately increased, thereby improving the uniformity of the air volume passing through each first air hole and improving the seat ventilation effect.

[0017] Furthermore, since the seat foam material is relatively soft, repeated deformation occurs during the use of the seat foam, resulting in easy connection failure between the bag body and the seat foam, and the bag body is prone to relative movement relative to the seat foam. By fixedly connecting the bag body to the seat frame through the first connecting member, the seat frame is not easily deformed, and the bag body is firmly fixed to the seat frame, avoiding directly pasting the bag body on the seat foam. Under long-term external force, the bag body is prone to relative movement relative to the seat foam, resulting in the problem that the ventilation holes on the bag body do not correspond to the ventilation holes on the seat foam, causing poor ventilation, and improving the seat ventilation effect.

[0018] Furthermore, a protective layer is covered on the side of the bag body close to the seat frame to protect the surface of the bag body, effectively avoiding the surface of the bag body being punctured by the hard seat frame when the bag body is pressed. Moreover, a protective layer is provided between the ventilation driving mechanism and the bag body, and the protective layer can reduce the vibration transmitted from the ventilation driving mechanism to the bag body, and further reduce the vibration transmitted to the seat foam, improving the seat comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 Schematic diagram of the structure of the bag body and the protective layer in one embodiment;

[0021] Figure 2 Schematic diagram of the structure of the bag body and the protective layer in one embodiment;

[0022] Figure 3 Schematic diagram of the structure of the fixing plate in one embodiment;

[0023] Figure 4 Cross-sectional view of the seat ventilation device in one embodiment;

[0024] In the figure: 1 - bag body; 11 - first air hole; 12 - second air hole; 13 - ventilation cavity; 15 - film-bonded non-woven fabric; 16 - 3D spacer fabric material; 2 - fixing plate; 22 - third air hole; 23 - ventilation driving mechanism fixing point; 3 - protective layer; 32 - fourth air hole; 4 - fixing hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] The object of the present utility model is to provide a seat ventilation device and a seat to solve the problems existing in the above-mentioned prior art, improve the uniformity of the air volume passing through each air hole, and improve the seat ventilation effect.

[0027] To make the above objects, features and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] Embodiment 1

[0029] This embodiment provides a seat ventilation device. As Figures 1 - 2 shown, the seat ventilation device includes a bag body 1. A ventilation cavity is provided inside the bag body 1. A plurality of first air holes 11 are opened on one side of the bag body 1 close to the seat surface. A second air hole 12 is also opened on the bag body. A ventilation driving mechanism is provided at the second air hole 12. During use, the ventilation driving mechanism can make the gas pass through each first air hole 11 and flow through the ventilation cavity to reach the second air hole 12, sucking away the gas at the seat surface, thereby taking away the sweat on the occupant's buttocks and back and improving the comfort of the occupant. Or make the gas pass through the second air hole 12, flow through the ventilation cavity to reach each first air hole 11, and then deliver the gas to the seat surface to dry the sweat on the buttocks and back and improve the comfort of the occupant. The size of each first air hole 11 increases with the increase of the distance to the ventilation driving mechanism. For the first air holes 11 far from the ventilation driving mechanism, the air volume brought by the ventilation driving mechanism obtained is less. The diameter of the first air hole 11 is increased to increase the air volume passing through the first air hole. For the first air holes 11 close to the ventilation driving mechanism, the air volume brought by the ventilation driving mechanism obtained is more. The diameter of the first air hole 11 is reduced to reduce the air volume passing through the first air hole 11, so as to improve the uniformity of the air volume passing through each first air hole 11 and improve the seat ventilation effect.

[0030] In another implementation manner of this embodiment, as Figure 4 shown, the body of the bag body 1 is made by ultrasonic welding the edges of two layers of film non-woven fabric 15. 3D spacer fabric material 16 is filled inside the bag body as a support to keep the ventilation cavity unobstructed. The shape of the bag body is specifically determined according to the shape of the seat back or the seat cushion.

[0031] In another implementation of this embodiment, the seat ventilation device further includes a first connecting member, which is used to fixedly connect the bag body 1 to the seat frame. The seat frame is not easily deformed, so that the bag body 1 is firmly fixed to the seat frame, avoiding the problem in the prior art that the bag body 1 is directly pasted on the seat foam. Under long-term external force, due to the relatively soft material of the seat foam, the seat foam will deform repeatedly during use, resulting in easy connection failure between the bag body and the seat foam, and the bag body is likely to move relative to the seat foam, causing the ventilation holes on the bag body 1 not to correspond to the ventilation holes on the seat foam, resulting in poor ventilation, and improving the seat ventilation effect.

[0032] In another implementation of this embodiment, the seat ventilation device further includes a fixing plate 2 and a first connecting member. The fixing plate 2 is fixedly connected to one side of the bag body 1 close to the seat frame. The ventilation driving mechanism is arranged on one side of the fixing plate 2 close to the seat frame. The first connecting member is used to fixedly connect the fixing plate 2 and the seat frame, so that the bag body is fixed more firmly, and the ventilation driving mechanism is fixedly connected to the bag body.

[0033] In another implementation of this embodiment, the seat ventilation device further includes a protective layer 3. The protective layer 3 can cover at least part of the area on the side of the bag body 1 close to the seat frame. The protective layer 3 is fixedly connected to the bag body 1. The protective layer can protect the surface of the bag body 1 and effectively prevent the surface of the bag body from being punctured by the hard seat frame when the bag body is pressed.

[0034] In one implementation of this embodiment, the protective layer 3 and the fixing plate 2 are arranged side by side on the side of the bag body 1 close to the seat frame. The adjacent side edges of the protective layer 3 and the fixing plate 2 are fixedly connected. The protective layer 3 can cover a part of the area on the side of the bag body 1 close to the seat frame, and the fixing plate 2 can cover the remaining part of the area on the side of the bag body 1 close to the seat frame. The protective layer 3 and the fixing plate 2 jointly protect the surface of the bag body 1 and effectively prevent the surface of the bag body from being punctured by the hard seat frame when the bag body is pressed.

[0035] Fixing holes are penetrated through the side wall of the bag body 1 close to the seat frame and the fixing plate 2. The first connecting member passes through the fixing holes on the bag body 1 and the fixing plate 2 and fixes the bag body 1 and the fixing plate 2 on the seat frame to improve the stability of the fixation of the bag body 1 and the fixing plate 2, and can fix the bag body 1 and the fixing plate 2 to each other to prevent relative displacement between the two.

[0036] The number of the fixing holes 4 is preferably 4 to improve the stability of the fixation of the bag body 1 and the fixing plate 2, and can fix the bag body 1 and the fixing plate 2 to each other to prevent relative displacement between the two.

[0037] The fixing plate 2 is provided with a third air hole 22 corresponding to the second air hole 12. The ventilation driving mechanism is arranged on one side of the third air hole 22 close to the seat frame. Through the ventilation driving mechanism arranged on the fixing plate 2, the second air hole 12 of the bag body 1 is ventilated.

[0038] The edge of the third air hole 22 is fixedly connected to the edge of the second air hole 12. The specific connection method can be ultrasonic welding, bonding and clamping, so that gas can pass through the fixing plate 2 to the bag body 1, and the edge of the second air hole 12 on the bag body 1 will not be blown up during ventilation.

[0039] In another implementation manner of this embodiment, the protective layer 3 can cover one side of the bag body 1 close to the seat frame. One end of the protective layer 3 extends between the fixing plate 2 and the bag body 1. The protective layer 3 is fixedly connected to the bag body 1 to protect the surface of the bag body, effectively avoiding the surface of the bag body being punctured by the hard seat frame when the bag body is pressed. Moreover, the ventilation driving mechanism is arranged on one side of the fixing plate close to the seat frame. The vibration of the ventilation driving device is reduced by the protective layer and transmitted to the bag body and then to the seat foam, improving the comfort of the seat.

[0040] Fixing holes 4 are penetrated through the side wall of the bag body 1 close to the seat frame, the protective layer 3 and the fixing plate 2. The first connecting piece passes through the fixing holes 4 on the bag body 1, the protective layer 3 and the fixing plate 2 and fixes the bag body 1, the protective layer 3 and the fixing plate 2 on the seat frame.

[0041] The number of the fixing holes 4 is preferably 4 to improve the fixing stability of the bag body 1, the protective layer 3 and the fixing plate 2, and can fix the bag body 1, the protective layer 3 and the fixing plate 2 to each other to avoid mutual displacement among the three.

[0042] In another implementation manner of this embodiment, the fixing plate 2 is provided with a third air hole 22 corresponding to the second air hole 12, and the protective layer 3 is provided with a fourth air hole 42 corresponding to the second air hole 12. Through the ventilation driving mechanism arranged on the fixing plate 2, the second air hole 12 of the bag body 1 is ventilated.

[0043] In another implementation manner of this embodiment, one side of the edge of the fourth air hole 42 is fixedly connected to the edge of the second air hole 12, and the other side is fixedly connected to the edge of the third air hole 22. The specific connection method can be ultrasonic welding, bonding and clamping, so that gas can pass through the fixing plate 2 and the protective layer 3 and lead to the bag body 1, and the edge of the second air hole 12 on the bag body 1 will not be blown up during ventilation.

[0044] In another implementation manner of this embodiment, at least two ventilation driving mechanism fixing points 23 are provided on the fixing plate 2. The ventilation driving mechanism is fixed on the ventilation driving mechanism fixing points 23 through the second connecting piece to make the ventilation driving mechanism firmly fixed.

[0045] In another implementation manner of this embodiment, a heating wire may also be installed at the third air hole 22 of the fixing plate 2 and connected to a heating device to heat the gas passing through the third air hole 22, so as to achieve the seat heating function.

[0046] In another implementation manner of this embodiment, the first connecting member and the second connecting member may be fixed columns fixed on the seat frame, or may be bolts or rivets.

[0047] In another implementation manner of this embodiment, the protective layer 3 may be a felt layer or a rubber pad, which can effectively prevent the non-woven fabric with film on the surface of the bag body from being punctured by the hard seat frame when the bag body is pressed. Moreover, the ventilation driving mechanism is arranged on the side of the protective layer close to the seat frame, so as to reduce the vibration of the ventilation driving device transmitted to the bag body and then to the seat foam through the protective layer, thereby improving the seat comfort.

[0048] Embodiment 2

[0049] This embodiment provides a seat, including a seat body and the seat ventilation device in Embodiment 1, which improves the seat ventilation effect and the seat comfort through the seat ventilation device.

[0050] In the present utility model, specific examples are used to elaborate the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A seat ventilation device, characterized in that: It includes a bag body, a ventilation cavity is arranged in the bag body, a plurality of first air holes are opened on the side of the bag body close to the seat surface, and second air holes are also opened on the bag body. A ventilation drive mechanism is arranged at the second air holes, and the ventilation drive mechanism can make the gas pass through each of the first air holes and flow through the ventilation cavity to reach the second air holes, or make the gas pass through the second air holes and flow through the ventilation cavity to reach each of the first air holes, and the size of each of the first air holes increases with the increase of the distance to the ventilation drive mechanism.

2. The seat ventilation device according to claim 1, characterized in that: It also includes a first connecting member, which is used to fix the bag body to the seat frame.

3. The seat ventilation device according to claim 2, characterized in that: It also includes a fixing plate and a first connecting member, wherein the fixing plate is fixedly connected to a side of the bag body close to the seat frame, the ventilation drive mechanism is arranged on a side of the fixing plate close to the seat frame, and the first connecting member is used to fix the fixing plate and the seat frame.

4. The seat ventilation device according to claim 3, characterized in that: It also includes a protective layer, which can cover at least a portion of the area on the side of the bag body close to the seat frame, and the protective layer is fixedly connected to the bag body.

5. The seat ventilation device according to claim 4, characterized in that: The fixing plate and the protective layer are arranged side by side on the side of the bag body close to the seat frame, and the protective layer is fixedly connected to the side edge adjacent to the fixing plate.

6. The seat ventilation device according to claim 4, characterized in that: The protective layer can cover a side surface of the bag body close to the seat frame, and one end of the protective layer extends to between the fixing plate and the bag body.

7. The seat ventilation device according to claim 6, characterized in that: The side wall of the bag body close to the seat frame, the protective layer and the fixing plate are all penetrated with fixing holes, and the first connecting member passes through the fixing holes on the bag body, the protective layer and the fixing plate and fixes the bag body, the protective layer and the fixing plate to the seat frame.

8. The seat ventilation device according to claim 5, characterized in that: The fixing plate is provided with a third air hole corresponding to the second air hole, and the ventilation drive mechanism is arranged on a side of the third air hole close to the seat frame.

9. The seat ventilation device according to claim 6, characterized in that: The fixing plate is provided with a third air hole corresponding to the second air hole, the ventilation drive mechanism is arranged on the side of the third air hole close to the seat frame, the protective layer extends between the fixing plate and the bag body and is provided with a fourth air hole corresponding to the second air hole, the edge of the fourth air hole is fixedly connected to the edge of the second air hole on one side close to the seat surface, and the other side is fixedly connected to the edge of the third air hole.

10. A seat, characterized in that: The invention comprises a seat body and the seat ventilation device according to any one of claims 1 to 9.

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