JP5870773B2 - Vehicle seat with air conditioner - Google Patents

Description

  The present invention relates to a vehicle seat with an air conditioner.

  2. Description of the Related Art Conventionally, a vehicle seat that includes an air conditioner is known. Patent Document 1 below discloses an air conditioning apparatus provided on a headrest. The air conditioner includes a ventilation duct, a blower, and a heater. The ventilation duct is a member that forms an air passage provided in the headrest. Both end portions of the passage are opened at the surface of the headrest, and form an air inlet and a blowout port, respectively. The air taken in from the suction port and blown into the ventilation duct by the blower is heated by the heater to become warm air, and blows out from the blowout port to the outside of the headrest.

Japanese Utility Model Publication No. 06-052615

  However, in the above-described technique, the suction port of the ventilation duct is disposed on the side surface of the headrest, and the blowout port is disposed on the front surface of the headrest. For this reason, it is necessary to prepare parts to be provided at the opening end of the ventilation duct, such as a frame-shaped bezel for fixing the opening end to the periphery, for both the inlet and the outlet, and the number of parts is reduced. It was bulky.

  The present invention has been made in view of such problems, and the problem to be solved by the present invention is that in providing a suction duct and a blowout opening of a ventilation duct in a vehicle seat provided with an air conditioner. Rather than reducing the number of parts.

In order to solve the above problems, the vehicle seat with an air conditioner according to the present invention takes the following means.
The vehicle seat with an air conditioner according to the first aspect of the present invention is a vehicle seat with an air conditioner that includes an air suction opening and a blowout opening that are open on the surface, and that blows out air sucked from outside. The suction port and the outlet port forming member are integrally provided adjacent to each other, and the opening end surface of the outlet port is disposed so as to surround the opening end surface of the outlet port. It is characterized by being disposed at a forward position when viewed from the end face in the blowing flow direction .
According to this configuration, since the forming members for the suction port and the blowout port are integrally provided in the adjacent state, the components to be provided for each of the suction port and the blowout port can be integrated. As such a component, for example, a frame-shaped bezel for attaching a suction port and a blower port forming member to a surrounding sheet forming member can be cited. Since both the suction port and the outlet port are disposed adjacent to each other, it is not necessary to prepare separate bezels for each of them as in the prior art, and an integrated bezel may be used. Therefore, the number of parts can be reduced when providing the air inlet and outlet in the vehicle seat. Moreover, it is suppressed that the air which blown off from the blower outlet is sucked into a suction port again, and the quantity of the air which goes to the user of an air conditioner can be ensured.

A vehicle seat with an air conditioner according to a second aspect of the present invention is a vehicle seat with an air conditioner that includes an air suction opening and a blowout opening that are open on a surface, and that blows out air sucked from outside. The suction port and the blow-off port forming member are integrally provided adjacent to each other, the suction duct through which the sucked-in air passes, the blow-out duct through which the blown-out air passes, and the blow-out duct are provided in the blow-out duct. And a heat exchanger for exchanging heat with air, wherein the suction duct is disposed around the blowout duct .
According to this structure, the heat of the air heat-exchanged within the blowout duct is also used for adjusting the temperature of the air flowing through the suction duct disposed around the air duct, thereby improving the thermal efficiency of the air conditioner.

The vehicle seat with an air conditioner according to a third aspect of the present invention is the vehicle seat with an air conditioner according to the second invention, wherein the opening end surface of the outlet is in the direction of the outlet flow from the opening end surface of the inlet. It is characterized by being disposed at the front position .
According to this structure, it is suppressed that the air which blown off from the blower outlet is sucked into a suction inlet again, and the quantity of the air which goes to the user of an air conditioner can be ensured.

According to the first aspect of the present invention, the number of parts can be reduced when providing the air inlet and outlet. Further, it is possible to secure the amount of air that is directed to the user of the air conditioner.
According to the 2nd invention, the thermal efficiency of an air-conditioner provided with a heat exchanger improves.
According to the third invention, it is possible to secure the amount of air that is directed to the user of the air conditioner.

It is a perspective view which shows the sheet | seat which concerns on embodiment. It is a front view which shows the headrest which concerns on 1st Embodiment. It is sectional drawing which cut | disconnected the headrest of FIG. 2 by the III-III line. It is sectional drawing which cut | disconnects and shows the ventilation duct of FIG. 3 by the IV-IV line. It is sectional drawing which cut | disconnects and shows the ventilation duct of FIG. 3 by the VV line. It is sectional drawing which cut | disconnects and shows the ventilation duct of FIG. 3 by the VI-VI line. FIG. 4 is an enlarged view of the vicinity of a vent in the cross-sectional view of FIG. 3. It is a figure corresponding to FIG. 3 in 2nd Embodiment.

Hereinafter, several embodiments for carrying out the present invention will be described with reference to the drawings.
(First embodiment)
FIG. 1 shows a vehicle seat 10 according to a first embodiment. The seat 10 includes a seat cushion 12 on which an occupant is seated, a seat back 14 that serves as a backrest for the occupant (seater), and a headrest 20 that supports the head of the occupant. Hereinafter, the front, rear, left and right directions are determined based on the posture of the seated person. The seat back 14 is connected to the rear portion of the seat cushion 12. The headrest 20 is provided on the upper part of the seat back 14. The seat cushion 12 and the seat back 14 each include a frame member (not shown) serving as a skeleton inside.

As shown in FIG. 2, the headrest 20 includes a block-shaped cushion material 22 that forms a support surface of the head, a skin material 24 that covers the surface of the cushion material 22, and a seat back 14. A stay 26. The cushion material 22 is made of polyurethane foam which is one of soft foamed resins. The skin material 24 is formed into a bag shape using a flexible sheet-like material such as woven fabric or synthetic leather (see FIG. 3).
The stay 26 is provided on each of the left and right sides. Each stay 26 is a metal bar-shaped member, and is provided in the vertical direction. The upper portion of the stay 26 is fixed inside the cushion material 22, and the lower portion extends downward from the lower surface of the cushion material 22. The lower portion of the stay 26 that extends is inserted into the upper portion of the seat back 14, and is attached to the frame member of the seat back 14 by an attachment member (not shown).

The seat 10 is provided with an air conditioner 30 shown in FIG. In the present embodiment, the air conditioner 30 is provided in the headrest 20 among the seats 10 and is used by a seated person of the seat 10. The air conditioner 30 includes a ventilation duct 40, a blower 32, and a heater 34.
The ventilation duct 40 is a resin member that forms an air passage provided in the headrest 20. Both end portions of the passage are opened on the surface of the headrest 20 to form an air suction port 40a and a blowout port 40b, respectively (see FIG. 2). The outlet 40b of the present embodiment is disposed at a lower position corresponding to the position of the neck of the seated person on the front surface of the headrest 20. Thereby, the air which flows through the inside of the ventilation duct 40 is blown out toward the seated person's neck from the blowout opening 40b. In addition, the skin material 24 is not provided in the location in which the suction inlet 40a and the blower outlet 40b are provided.
The blower 32 is provided in the ventilation duct 40 and blows the air in the ventilation duct 40 toward the outlet 40b by a rotating fan. Air is sucked into the ventilation duct 40, which has become a negative pressure by the air blowing, from the outside of the headrest through the suction port 40a. Thereby, air is sucked in from the suction port 40a and blown out from the blow-out port 40b.
The heater 34 is provided in the ventilation duct 40, warms the air flowing through the ventilation duct 40 by heat exchange, and creates warm air. The heater 34 corresponds to the heat exchanger in the present invention. The heater 34 can be switched between an operating state and a non-operating state. When the heater is in the operating state, the air blown into the ventilation duct 40 by the blower 32 is heated by the heater 34 to become warm air and blows out from the blowout port 40b. When the heater 34 is in an inoperative state, the air blown into the ventilation duct 40 by the blower 32 is directly blown out from the blowout port 40b.
Hereinafter, the configuration of the air conditioner 30 will be described in detail with a focus on the structure of the ventilation duct 40.

(Ventilation duct)
As shown in FIG. 3, the ventilation duct 40 is folded back at an intermediate portion, and a portion on the suction port 40 a side (suction duct 42) and a portion on the blowout port 40 b side (blowing duct 44) are parallel to the middle portion. It has a structure. FIG. 3 shows the headrest 20 cut along a vertical plane passing through both ducts. The parallel suction duct 42 and the blowout duct 44 are formed integrally with each other, and a partition wall 46 is formed between the suction duct 42 and the blowout duct 44 so as to separate the passages therebetween. An opening 47 that leads from the suction duct 42 to the blowout duct 44 is formed in the partition wall 46 at the folded portion. The air flowing through the suction duct 42 passes through the opening 47 and flows into the blowout duct 44. As described above, the air duct 40 is formed with an air passage extending from the inlet 40a to the outlet 40b.
The blower 32 provided in the ventilation duct 40 is disposed in the folded portion. That is, the blower 32 blows the air in the suction duct 42 into the blowout duct 44. The rotary fan of the blower 32 takes air in the direction of the rotation axis from the opening 47 of the partition wall 46 and sends it out in the radial direction. Further, since the folded portion is separated from the inlet 40a and the outlet 40b to the inside of the headrest 20, the noise emitted from the blower 32 is difficult to reach the ears of the seated person using the headrest 20.
The heater 34 provided in the ventilation duct 40 is disposed in the blowout duct 44. Further, the heater 34 is disposed in the blowout duct 44 particularly in the vicinity of the blowout opening 40b, thereby suppressing the escape of heat until the warm air heated by the heater 34 blows out from the blowout opening 40b.
As shown in FIG. 2, fixing members 60 for fixing the stay 26 of the headrest 20 to each other are provided on the left and right outer sides of the folded portion of the ventilation duct 40. The fixing member 60 is formed in a pipe shape, and the upper portion of the stay 26 is inserted into the pipe shape, and both are fixed to each other.

  The suction duct 42 parallel to the blowout duct 44 is disposed so as to surround the blowout duct 44. The ventilation duct 40 cut | disconnected in three different places is shown by FIGS. Specifically, the ventilation duct 40 according to the present embodiment has a double nesting structure in which the blowout duct 44 is inserted into the suction duct 42. In other words, the ventilation duct 40 has a double nesting structure, and among the double passages formed by this structure, the central passage surrounds the blowout duct 44 and the blowout duct 44 (having an annular cross section as a whole). The passage is a suction duct 42. Therefore, the entire wall portion of the blowout duct 44 also serves as the small diameter side wall portion of the suction duct 42 as the partition wall portion 46.

A rib 48 is provided between both wall portions of the suction duct 42 and the blowout duct 44 (that is, both the large-diameter side and the small-diameter side wall portions of the suction duct 42). Thereby, the blow-out duct 44 is fixed in a state of being inserted into the suction duct 42.
The above-described rib 48 is continuously provided along the passage direction in the portion of the suction duct 42 excluding the folded portion, and the passage of the suction duct 42 surrounding the blowout duct 44 is as shown in FIG. The rib 48 is divided into a plurality of passages in the circumferential direction.
On the other hand, in the folded portion, the ribs 48 are provided intermittently along the passage direction, and the plurality of partitioned passages communicate with each other in this portion. FIG. 5 shows a cross section of the ventilation duct 40 cut at a location where the rib 48 is provided, and FIG. 6 shows a location where the rib 48 is not provided. The opening 47 provided in the partition wall 46 of the suction duct 42 and the blowout duct 44 in the folded portion is disposed with respect to one of a plurality of divided passages as well shown in FIG. However, due to the intermittent rib 48 configuration described above, air in other passages can also circulate toward the opening 47 as indicated by arrows in FIG.
The wall portions of the suction duct 42 and the blowout duct 44 according to this embodiment both have a rectangular cross section. The ribs 48 are bridged at the four corners of the rectangular cross section of both ducts, so that the suction duct 42 has four passages.

(vent)
As shown in FIGS. 2 and 3, the suction port 40a is disposed at a position adjacent to the blowout port 40b, and the suction port 40a and the blowout port 40b are integrally formed. Hereinafter, when the suction port 40a and the blowout port 40b arranged adjacent to each other are collectively treated, they are referred to as vent ports 40a and 40b. FIG. 7 shows an enlarged view of the vicinity of the vent holes 40a and 40b.
In the present embodiment in which the ventilation duct 40 has a double nesting structure, the ventilation openings 40 a and 40 b opened on the surface of the headrest 20 also have the same structure as the end portion of the ventilation duct 40 as it is. That is, the opening end (on the large diameter side) that forms the suction port 40a is disposed so as to surround the opening end that forms the blowout port 40b. Moreover, the opening end part which forms the blower outlet 40b serves as the opening end part (on the small diameter side) which forms the suction inlet 40a as an end part of the partition part 46. Further, the outlet 40b is divided into four in the circumferential direction by the rib 48 corresponding to the four passages of the outlet duct as shown in FIG.
A frame-like bezel 50 for fixing to the surrounding cushion material 22 and the skin material 24 is provided at the opening end portion forming the vent holes 40a, 40b. The bezel 50 can be provided separately from the ventilation duct 40, but is provided integrally with the ventilation duct 40 in this embodiment. In the present embodiment, since the opening end (on the large diameter side) of the suction port 40a surrounds the opening end of the outlet 40b, the bezel 50 has only the opening end that forms the suction port 40a on the outside. Is provided.
As shown in FIG. 7, the opening end surface that forms the outlet 40 b is disposed forward (in the direction of the outlet flow) with respect to the opening end surface (on the large diameter side) that forms the inlet 40 a. That is, the opening end of the central outlet 40b protrudes forward from the opening end (on the large diameter side) of the suction port 40a that surrounds the opening. A rectifying plate 45 for rectifying the air flow is provided in the opening of the air outlet 40b.

The sheet 10 according to this embodiment has the following operational effects. First, since the inlet 40a and the outlet 40b of the ventilation duct 40 are disposed adjacent to each other and are provided integrally with each other, the number of parts provided at the opening end of the ventilation duct 40 can be reduced. Further, even when the frame-like bezel 50 is attached to the suction port 40a and the outlet 40b by a separate member from the duct, the two bezels 50 are prepared for each because they are arranged at adjacent positions. It is not necessary to use the integrated bezel 50, and the number of parts can be reduced. In particular, if the ventilation duct 40 has a double nesting structure as in this embodiment, the bezel 50 may be prepared only for the suction port 40a on the outside.
In addition, since the opening end surface of the outlet 40b is set in front of the opening end surface of the suction port 40a (blowing flow direction), the warm air blown from the outlet 40b is again taken into the ventilation duct from the suction port 40a. And the amount of warm air toward the seated person can be secured.
In addition, since the heater 34 is provided in the blowout duct 44 and the suction duct 42 is disposed around the blowout duct 44, the heat of the warm air heated by the heater 34 in the blowout duct 44 is converted into the partition wall portion 46. This is used to warm the air flowing through the suction duct 42 through the air and improves the thermal efficiency of the air conditioner 30. Moreover, it can also suppress that the cushion material 22 grade | etc., Of the headrest 20 warms and changes in quality by the heat | fever of warm air.

(Second Embodiment)
Next, a second embodiment for carrying out the present invention will be described with reference to FIG. In the present embodiment, portions that do not require substantial changes from the first embodiment, such as the vents 40a and 40b, are denoted by the same reference numerals as those in the first embodiment, and detailed description thereof will be omitted. Omitted.

  2nd Embodiment is Embodiment which changed the external shape of the site | part in which vent 40a, 40b of the air conditioning apparatus 30 is provided among the headrest 20 in 1st Embodiment. The headrest 20 according to the present embodiment has a recessed portion 20a that is recessed inward as shown in FIG. 8 at a lower position corresponding to the position of the neck of the seated person on the front surface. And it differs from 1st Embodiment shown by FIG. 7 by the point by which the vent holes 40a and 40b are arrange | positioned in the bottom face of this hollow part. However, the present embodiment is the same as the first embodiment in that the opening end surface that forms the outlet 40b is disposed forward (in the direction of the outlet flow) than the opening end surface that forms the suction port 40a. Thereby, the vehicle seat according to the present embodiment has the same effects as those of the first embodiment, and even when the seated person places the head deeply on the headrest 20, the recessed shape 20a of the headrest 20 causes the vehicle seat to move forward. The conventional ride comfort can be maintained without hitting the opening end of the protruding outlet 40b.

In addition, the vehicle seat provided with the air conditioner according to the present invention is not limited to the first and second embodiments described above, and can be implemented in various other forms.
The air conditioner 30 according to the above embodiment is particularly provided in the headrest 20 among the vehicle seats 10. However, as long as the seat 10 is the seat 10, the air conditioners 30 can be provided in portions other than the headrest 20. Further, in the air conditioner 30 according to the above-described embodiment, the air outlet 40b is disposed at a lower position corresponding to the position of the neck of the seated person on the front surface of the headrest 20 so that the seated person of the seat 10 can use it. ing. However, it can also be configured such that a seated person other than the seat 10 can use the air conditioner 30. For example, the air outlet 30 may be arranged on the rear surface of the seat back 14 so that the air flowing in the ventilation duct 40 is blown out toward the seated person of the seat behind the seat 10.
The air conditioner 30 according to the above embodiment is provided with a heater 34 as a heat exchanger, and when the heater 34 is operated, warm air can be blown out, but a cooling device is provided as a heat exchanger. It is good also as the air conditioner 30 which can blow off cold wind. In this case, the same effects as in the above embodiment are obtained except that the direction of heat flow is reversed.

  In the above embodiment, the frame-like bezel 50 is provided integrally with the ventilation duct 40 at the opening ends of the ventilation openings 40a, 40b. As described above, the bezel 50 can be provided separately from the ventilation duct 40. Moreover, it is good also as a structure which provides the cover thru | or cap which forms the opening edge part of vent 40a, 40b separately from the ventilation duct 40 main body with this bezel 50 or including the bezel 50. In this case, in the openings of the vent holes 40a and 40b, in addition to the rectifying plate 45 provided in the above embodiment, a filter for preventing entry of dust and the like, and a protective wire for preventing erroneous entry of hands and the like, It can also be provided integrally with the cover or cap. Also in the above case, as in the above-described embodiment, the bezel 50, the cover, the cap, and the like for each of the suction port 40a and the outlet port 40b can be manufactured, managed, and assembled as an integral part.

  The ventilation duct 40 according to the above-described embodiment has a double nested structure as described above. Of the double passages formed by this structure, the central passage is the outlet duct 44, and the passage surrounding it is the suction duct. 42. The wall portions of the suction duct 42 and the blowout duct 44 both have a rectangular cross section, but may have other cross sections such as a circular cross section. Further, as long as the suction duct 42 is disposed around the blowout duct 44, the ventilation duct 40 can have any structure other than the nested structure. In particular, the suction duct 42 does not need to be disposed all around the blowout duct 44, and if it is even disposed in part, heat flows back and forth through the partition 46 that separates the passages of both ducts. It is possible to achieve the same effect as the above embodiment.

DESCRIPTION OF SYMBOLS 10 Seat 12 Seat cushion 14 Seat back 20 Headrest 20a Indentation part 22 Cushion material 24 Skin material 26 Stay 30 Air conditioner 32 Blower 34 Heater 40 Ventilation duct 40a Suction port 40b Blowing port 42 Suction duct 44 Blowing duct 45 Rectifier plate 46 Bulkhead part 47 Opening 48 (partition wall) Rib 50 Bezel 60 Fixing member

Claims (3)

Provided with air inlet and outlet opening on the surface,
A vehicle seat with an air conditioner that blows air sucked in from outside,
The forming member of the suction port and the outlet port is provided integrally in an adjacent state ,
With an air conditioner, the opening end surface of the outlet is disposed at a front position as viewed in the outlet flow direction from the opening end surface of the suction port disposed so as to surround the opening end surface of the outlet. Vehicle seat. Provided with air inlet and outlet opening on the surface,
A vehicle seat with an air conditioner that blows air sucked in from outside,
The forming member of the suction port and the outlet port is provided integrally in an adjacent state,
A suction duct through which the sucked air passes, a blow-out duct through which blown air passes,
A heat exchanger provided in the blowout duct for exchanging heat with air,
The vehicle seat with an air conditioner, wherein the suction duct is disposed around the blowout duct . A vehicle seat with an air conditioner according to claim 2,
  The vehicular seat with an air conditioner is characterized in that the opening end face of the air outlet is disposed at a front position as seen in the air flow direction from the opening end face of the air inlet.

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