Seat air conditioner

Abstract

To provide a seat air conditioner capable of suppressing fluttering of a ventilation bag.SOLUTION: A seat air conditioner 10 includes a first film 30 that forms a part of a ventilation bag 26 formed in a bag shape and is disposed along a back pad 22, and a second film 32 that forms another part of the ventilation bag 26 and is disposed on an opposite side of the back pad 22, with the first film 30 interposed therebetween. Further, the seat air conditioner 10 includes a blower 24 that supplies air between the first film 30 and the second film 32, and a fixing bracket 28 that is provided on the blower 24 side and is fixed to the second film 32. Furthermore, the seat air conditioner 10 includes a fluttering prevention part 28B that is supported by the fixing bracket 28 and protrudes toward the first film 30 side with respect to the fixing bracket 28, and whose tip end side in the protruding direction is fixed to the first film 30.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a seat air conditioning system. [Background technology]

[0002] Patent Document 1 listed below discloses an air conditioning device for a vehicle seat that includes a plenum formed in a bag shape and a blower that supplies air into the plenum. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special Publication No. 2021-504234 Summary of the Invention [Problem to be solved by the invention]

[0004] In a seat air conditioning system that is provided with an air vent called a plenum, it is desirable to be able to prevent the air vent from flapping due to pressure fluctuations in the supplied air, but the configuration described in Patent Document 1 above leaves room for improvement in this regard.

[0005] SUMMARY OF THE INVENTION In consideration of the above, an object of the present invention is to provide a seat air-conditioning system that can suppress flapping of an air vent bag. [Means for solving the problem]

[0006] The seat air conditioning device of the first embodiment comprises a first film that forms part of a bag-shaped ventilation bag and is arranged along a pad; a second film that forms another part of the ventilation bag and is arranged on the opposite side of the pad from the first film; a blower that generates an air flow between the first film and the second film; a fixed bracket that is provided on the blower side and fixed to the second film; and a flutter prevention member that is supported by the fixed bracket and protrudes from the fixed bracket toward the first film with its tip end in the protruding direction fixed to the first film.

[0007] In the seat air conditioning device of the first aspect, a portion of the air vent bag is formed by a first film, and another portion of the air vent bag is formed by a second film. An air flow is generated between the first film and the second film by a blower. A fixing bracket is provided on the blower side and is fixed to the second film. A flutter prevention member is supported on the fixing bracket. The flutter prevention member protrudes toward the first film relative to the fixing bracket, and its tip end in the protruding direction is fixed to the first film. The provision of the flutter prevention member prevents the air vent bag from flapping, which would change the distance between the first film and the second film, when an air flow occurs between the first film and the second film due to the operation of the blower. In this way, the seat air conditioning device of the first aspect can prevent the air vent bag from flapping.

[0008] The second aspect of the seat air conditioning system is the seat air conditioning system of the first aspect, wherein the second film has a passage hole formed therein through which air flows between the second film and the blower, and the flutter prevention member is provided around the passage hole.

[0009] In the seat air conditioning device of the second aspect, the flutter prevention member is provided around the passage hole formed in the second film, which can effectively suppress fluttering of the air vent bag when air passes through the passage hole.

[0010] The seat air conditioning device of the third aspect is a seat air conditioning device of the first or second aspect, in which the portion of the anti-flutter member at the tip end in the protruding direction is formed in a shape that expands toward the first film side relative to the portion of the anti-flutter member at the base end in the protruding direction.

[0011] In the seat air conditioning device of the third aspect, the portion of the anti-flutter member at the tip end in the protruding direction is formed in a shape that widens toward the first film relative to the portion of the anti-flutter member at the base end in the protruding direction. With this configuration, it is possible to ensure the area of ​​the joint between the anti-flutter member and the first film, while preventing the flow path in the air vent bag from being narrowed by the portion of the anti-flutter member at the base end in the protruding direction.

[0012] A seat air-conditioning device of a fourth aspect is the seat air-conditioning device of any one of the first to third aspects, wherein the fixing bracket and the flutter prevention member are integrally formed.

[0013] In the seat air-conditioning device of the fourth aspect, the fixing bracket and the anti-fluttering member are integrally formed, which reduces the number of parts constituting the seat air-conditioning device compared to a configuration in which the fixing bracket and the anti-fluttering member are separate. [Effects of the Invention]

[0014] The seat air-conditioning device according to the present invention has the excellent effect of suppressing flapping of the air vent bag. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 2 is a front view showing the vehicle seat. [Figure 2] FIG. 2 is a perspective view of the seat air conditioning device as seen obliquely from the front side. [Figure 3] FIG. 2 is a perspective view of the seat air conditioning device as seen obliquely from the rear side. [Figure 4]10 is a perspective view showing a cross section of the ventilation bag and the fixing bracket taken along the vertical and front-to-rear directions. FIG. [Figure 5] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0016] 1 to 5, a vehicle seat 12 equipped with a seat air-conditioning device 10 according to an embodiment of the present invention will be described. In the drawings, the arrow FR indicates the front side of the seat, the arrow UP indicates the upper side of the seat, the arrow RH indicates the right side in the seat width direction, and the arrow LH indicates the left side in the seat width direction. In the following description, unless otherwise specified, when referring to front-rear, up-down, and left-right directions, these refer to front-rear in the seat front-rear direction, up-down in the seat up-down direction, and left-right in the seat width direction.

[0017] 1, the vehicle seat 12 of this embodiment includes a seat cushion 14 that supports the buttocks of a seated occupant from below, a seat back 16 that supports the back of the seated occupant from the rear side, and a headrest 18 that supports the head of the seated occupant from the rear side. The vehicle seat 12 also includes a seat air conditioning unit 10 that blows air toward the back of the seated occupant.

[0018] The seat cushion 14 includes a cushion frame that forms the framework of the seat cushion 14, and a cushion pad 20 that serves as a pad attached to the cushion frame. The surface of the cushion pad 20 facing the seated occupant is covered with a trim.

[0019] The seat back 16 is configured to include a back frame that forms the framework of the seat back 16, and a back pad 22 that serves as a pad attached to the back frame. The surface of the back pad 22 facing the seated occupant is covered with a trim. The trim that covers the back pad 22 is not shown in Fig. 1. The back pad 22 is also formed with a plurality of ventilation holes 22A that penetrate the back pad 22 in the front-rear direction.

[0020] 1 to 3, a seat air-conditioning unit 10 is provided inside the seat back 16 and behind the back pad 22. When this seat air-conditioning unit 10 is activated, it is possible to blow air toward the back of the seated occupant through a plurality of ventilation holes 22A formed in the back pad 22. Note that a configuration can also be adopted in which when the seat air-conditioning unit 10 is activated, it is possible to suck air toward the back of the seated occupant through a plurality of ventilation holes 22A formed in the back pad 22.

[0021] As shown in FIGS. 2 and 3, the seat air-conditioning device 10 includes a blower 24 and an air vent bag 26 to which air from the blower 24 is supplied.

[0022] When the blower 24 is activated, it supplies air from the rear side of the ventilation bag 26 to the inside of the ventilation bag 26. The blower 24 is fixed to the ventilation bag 26 via a fixing bracket 28 (see FIG. 4) which will be described later.

[0023] 2 to 4, ventilating bag 26 is formed in a rectangular shape with the longitudinal direction extending vertically when viewed from the front. This ventilating bag 26 is configured to include a first film 30 and a second film 32.

[0024] 2 and 4, the first film 30 is formed in the shape of a rectangular sheet with the longitudinal direction extending vertically when viewed from the front. As shown in FIGS. 1, 2 and 4, the first film 30 is disposed along the rear surface of the back pad 22. Furthermore, a plurality of exhaust holes 30A through which air supplied into the ventilation bag 26 is exhausted are formed in the first film 30 at locations corresponding to the plurality of ventilation holes 22A formed in the back pad 22.

[0025] 2 and 4, the second film 32 is disposed rearward relative to the first film 30 and is formed in the shape of a rectangular sheet with its longitudinal direction extending vertically as viewed from the front. The outer periphery of the second film 32 is joined to the outer periphery of the first film 30 to form a bag-shaped ventilation bag 26. As shown in FIG. 4, a circular passage hole 32A through which air from the blower 24 (see FIG. 3) passes is formed in the center in the left-right direction of the upper portion of the second film 32. A fixing bracket 28 is fixed to the edge of the passage hole 32A in the second film 32.

[0026] As shown in Figures 4 and 5, the fixed bracket 28 has a disc portion 28A formed in a disc shape and four flutter prevention portions 28B as flutter prevention members formed integrally with the disc portion 28A.

[0027] The disk portion 28A is formed in a disk shape with its thickness direction being the front-to-rear direction, which is the direction facing the second film 32. A circular through-hole 28C is formed in the center of the disk portion 28A, through which air from the blower 24 (see FIG. 3) passes. The edge of the through-hole 32A in the second film 32 is located on the rear side of the disk portion 28A. The rear surface of the disk portion 28A and the edge of the through-hole 32A in the second film 32 are bonded to each other, thereby fixing the fixed bracket 28 to the second film 32. Alternatively, the fixed bracket 28 is fixed to the second film 32 with the edge of the through-hole 32A in the second film 32 sandwiched between the rear surface of the disk portion 28A and the blower 24. As shown in FIGS. 3 and 4, the blower 24 is attached to the fixed bracket 28 from the rear side.

[0028] As shown in FIG. 5, the four flutter prevention portions 28B each protrude forward from the disk portion 28A. These four flutter prevention portions 28B are arranged around the passage hole 28C at equal intervals along the circumferential direction of the passage hole 28C. A portion 28B1 at the tip end of the flutter prevention portion 28B in the protruding direction is formed in a shape that widens toward the first film 30 relative to a portion 28B2 at the base end of the flutter prevention portion 28B in the protruding direction. More specifically, the portion 28B2 at the base end of the flutter prevention portion 28B in the protruding direction is formed in a cylindrical shape with its axial direction aligned in the front-to-rear direction. The portion 28B1 at the tip end of the flutter prevention portion 28B in the protruding direction is formed in a disk shape with a larger diameter than the portion 28B2 at the base end of the protruding direction. Furthermore, the surfaces 28B3 at the tip end of the protruding direction of each of the four flutter prevention portions 28B are joined (fixed) to the rear surface of the first film 30 via an adhesive or the like.

[0029] (Actions and Effects of This Embodiment) Next, the operation and effects of this embodiment will be described.

[0030] As shown in FIGS. 1 to 5, in the vehicle seat 12 of this embodiment, when the blower 24 of the seat air-conditioning unit 10 is activated, air from the rear side of the air vent bag 26 is supplied into the interior of the air vent bag 26 through the passage hole 32A of the second film 32 (the passage hole 28C of the fixing bracket 28). The air supplied into the interior of the air vent bag 26 is then discharged through the plurality of exhaust holes 30A of the first film 30. The air discharged through the plurality of exhaust holes 30A of the first film 30 flows toward the back of the seated occupant through the plurality of ventilation holes 22A formed in the back pad 22. In this way, in the vehicle seat 12 of this embodiment, operation of the seat air-conditioning unit 10 allows air to be blown toward the back of the seated occupant.

[0031] In this embodiment, a portion of the air vent bag 26 is formed by the first film 30, and another portion of the air vent bag 26 is formed by the second film 32. The blower 24 is fixed to the second film 32 via the fixed bracket 28. The fixed bracket 28 is further provided with four flapping prevention portions 28B. The flapping prevention portions 28B protrude from the disc portion 28A of the fixed bracket 28 toward the first film 30, and a surface 28B3 at the tip end of the protruding direction is fixed to the first film 30. As a result, the four flapping prevention portions 28B maintain the front-to-rear distance between the first film 30 and the second film 32 at the inlet portion of the air vent bag 26 where air is supplied from the blower 24. As a result, when air from the blower 24 is supplied between the first film 30 and the second film 32, the air vent bag 26 is prevented from flapping, which would change the distance between the first film 30 and the second film 32. In this way, in the seat air-conditioning device 10 of this embodiment, flapping of the air vent bag 26 can be suppressed.

[0032] Furthermore, in this embodiment, four flapping prevention portions 28B are provided around passage holes 32A (passage holes 28C of fixed bracket 28) formed in second film 32. This configuration can effectively prevent flapping of air bag 26 when air is supplied through passage holes 32A.

[0033] Furthermore, in this embodiment, portion 28B1 of flapping prevention portion 28B on the tip side in the protruding direction is formed in a shape that is wider than portion 28B2 of flapping prevention portion 28B on the base end side in the protruding direction. With this configuration, the area of ​​the joint between flapping prevention portion 28B and first film 30 can be ensured, while preventing the flow path inside ventilating bag 26 from being narrowed by portion 28B2 of flapping prevention portion 28B on the base end side in the protruding direction.

[0034] In addition, in this embodiment, the fixed bracket 28 and the flutter prevention portion 28B are configured as an integrated unit, which reduces the number of parts that make up the seat air-conditioning device 10 compared to a configuration in which the fixed bracket 28 and the flutter prevention portion 28B are separate.

[0035] In this embodiment, the fixed bracket 28 and the flutter prevention part 28B are integrally configured, but the present invention is not limited to this. For example, depending on the arrangement of the flutter prevention part 28B (flutter prevention member), the fixed bracket 28 and the flutter prevention part 28B (flutter prevention member) may be configured as separate bodies.

[0036] In addition, in this embodiment, an example has been described in which section 28B1 of flapping prevention section 28B at the tip end in the protruding direction is formed in a shape that is wider than section 28B2 of flapping prevention section 28B at the base end in the protruding direction, but the present invention is not limited to this. The shape of flapping prevention section 28B may be set appropriately taking into consideration the effect of reducing flapping of ventilating bag 26.

[0037] Furthermore, in this embodiment, an example has been described in which four flapping prevention portions 28B are provided around passage hole 32A (passage hole 28C of fixed bracket 28) formed in second film 32, but the present invention is not limited to this. The number and arrangement of flapping prevention portions 28B may be set appropriately taking into consideration the effect of reducing flapping of air vent bag 26.

[0038] The configuration of the seat air-conditioning device 10 of this embodiment can also be applied to the seat cushion 14 side.

[0039] The above describes one embodiment of the present invention, but the present invention is not limited to the above, and it goes without saying that it can be implemented in various other modified forms within the scope of the gist of the present invention. [Explanation of symbols]

[0040] 10 seat air conditioning. 20 Cushion pad (pad) 22 Back pad (pad) 24 Blower 26 Ventilation bag 28 Fixing bracket 28B Anti-fluttering part (anti-fluttering member) 28B1 The portion of the flutter prevention part (flutter prevention member) on the tip side in the protruding direction 28B2 The portion of the anti-fluttering portion (anti-fluttering member) on the base end side in the protruding direction 30 First Film 32 Second Film 32A Passing hole

Claims

1. a first film that forms a part of a bag-shaped ventilation bag and is arranged along the pad; a second film that forms another part of the air vent bag and is disposed on the opposite side of the first film from the pad; a blower that generates an air flow between the first film and the second film; a fixing bracket provided on the blower side and fixed to the second film; a flutter prevention member supported by the fixed bracket, protruding from the fixed bracket toward the first film, and having a tip end in the protruding direction fixed to the first film; Seat air conditioning unit equipped with

2. the second film has a passage hole formed therein through which air flows between the second film and the blower; The seat air conditioning system according to claim 1, wherein the flutter prevention member is provided around the passage hole.

3. A seat air conditioning device as described in claim 1 or claim 2, wherein the portion of the anti-flutter member at the tip end in the protruding direction is formed in a shape that expands toward the first film side relative to the portion of the anti-flutter member at the base end in the protruding direction.

4. 2. The seat air conditioning system according to claim 1, wherein the fixing bracket and the flutter prevention member are integrally formed.

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