JP2008168776A - Vehicular seat air-conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device in a simple structure at low cost for surely collecting air-conditioned air from an in-cabin air-conditioning unit in a vehicular seat air-conditioner whose in-cabin air-conditioning unit and seat air conditioning unit are not connected. <P>SOLUTION: A blowoff port 6 is led to a vicinity of a vehicular seat 8 from the in-cabin air-conditioning unit 2 through a floor duct 4. A wind collecting port 18 for collecting the air-conditioned air blown off from the blowoff port 6 is provided to a seat rail 14a of the vehicular seat 8 in a seat side, and to a seat air-conditioning blower 15 through a slide duct 16. Accordingly the wind collecting port follows horizontal and vertical strokes of the vehicular seat 8 to surely collecting wind, and the air-conditioned air is sucked into the seat air-conditioning blower 15. Then the air-conditioned air is blown off from seat blowoff ports 12, 13 of the vehicular seat 8 to a seated occupant. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicle seat air conditioner that performs seat air conditioning using conditioned air from a vehicle interior air conditioning unit.

  A seat air conditioner has been proposed in order to suppress stuffiness of the back, buttocks and thighs of the passengers, and stickiness due to sweat, which could not be resolved only by air conditioning in the passenger compartment.

  For example, in Patent Document 1, a blower 12 that pumps the air in the passenger compartment R to the air blowing hole 7 that is opened in the seat 1 and the air that is being pumped between the blower 12 and the air blowing hole 7. The seat temperature adjusting means 20 for heating or cooling, the vehicle temperature controller 51 for supplying the temperature-adjusted air into the passenger compartment R, the vehicle temperature controller 51 for supplying the air, and the temperature controller 51 The air blowing direction changing means 53 for changing the air blowing direction at the outlet 52 of the vehicle, and the air blowing of the vehicle temperature controller 51 via the blowing direction changing means 53 based on the operation signal D of the blower 12. It comprises a controller 54 that directs the direction to the air inlet 11 of the blower 12.

Thereby, the temperature-adjusted air can be sent to the intake port of the blower, and the air heated or cooled rapidly and sufficiently can be blown out by passing this air through the sheet temperature adjusting means. That is, there is shown a non-connection type vehicle seat air conditioner that sends conditioned air from the vehicle temperature controller 51 in the passenger compartment to the seat unit.
JP-A-10-278556

Further, in Patent Document 2, a seat air duct 4 for sending conditioned air from the front air conditioning unit 1 to the seat air conditioning unit 3, a floor duct 41 fixed on the floor surface in the passenger compartment, and the front seat 2 It consists of slide ducts 45 and 46 that follow the stroke in the front-rear direction and the stroke in the vertical direction. Thereby, since a sheet | seat ventilation duct does not deform | transform greatly, the increase in the pressure loss and heat loss of a sheet | seat ventilation duct can be suppressed, without narrowing the air passage formed in a sheet | seat ventilation duct.
JP2001-47848

  In Patent Document 1, conditioned air is sent from the vehicle temperature controller 51 in the passenger compartment to the seat unit. However, the louver 56 and the damper 66, which are constituent elements of the blowing direction changing means 53, are under the instrument, At a distance. Therefore, it diffuses to the air inlet 11 of the blower 12 and the temperature of the conditioned air changes.

  Therefore, another embodiment is shown in which the air duct 61 is extended from the outlet 52 of the vehicle temperature controller 51 to the vicinity of the inlet 11 of the blower 12. The mechanism for collecting air to the mouth 11 is not good, and the conditioned air that has blown out flows out to the rear seat, and there is a disadvantage that the air-conditioning unit does not reliably suck the air.

  In Patent Document 2, in the non-connection type, the diffusion of the conditioned air is prevented as close as possible. For example, in the fourth embodiment, a rubber cover 72 is connected to the connection port 25 of the blower unit case. A grill 73 provided on the outlet side of the floor duct 71 is inserted therein. However, it is structurally complex and the number of parts tends to increase.

  In view of this, an object of the present invention is to provide a device that can reliably collect air-conditioned air from the air outlet of a vehicle interior air-conditioning unit and that is structurally simple.

  A vehicle seat air-conditioning apparatus according to the present invention includes a seat air-conditioning unit including at least a seat air-conditioning air blower for sending conditioned air to a seating surface of a vehicle seat, and a vehicle interior air-conditioning unit that controls air-conditioning in the vehicle interior, In a non-connection type vehicle seat air conditioner that sends conditioned air from within an air conditioning unit in a passenger compartment to the seat air conditioning unit, the air conditioning air that is blown out from the outlet of a floor duct connected to the passenger compartment air conditioning unit is collected. The wind means is attached to the bottom surface side of the vehicle seat (claim 1). Thereby, the conditioned air from the vehicle interior air conditioning unit can be reliably collected by the air collecting means, and the conditioned air with little temperature change can be sucked into the seat air conditioning unit.

  As the air collecting means, there is an air collecting opening having an opening facing an air outlet of a floor duct connected to the vehicle interior air conditioning unit, and the air collecting opening is fixed to the vehicle seat side, specifically to the vehicle seat. It is fixed to the seat side seat rail (claims 2 and 3). As a result, the conditioned air from the vehicle interior air conditioning unit can be reliably collected by the air collecting port, and the air collecting port is fixed to the seat side rail on the vehicle seat side. Can be moved correspondingly.

  Further, a slide duct is provided between the air collecting port and the seat air-conditioning fan attached to the vehicle seat in order to follow the expansion and contraction in the vertical direction (Claim 4), and a bellows duct is provided. (Claim 5). That is, it is possible to follow a vertical stroke.

  Further, as the air collecting means, in addition to those described above, a guide plate that can be changed to a position orthogonal to the flow of conditioned air from the outlet of the floor duct connected to the vehicle interior air conditioning unit and a position along the flow. This guide plate is provided in the seat air-conditioning unit (Claim 6), and the guide plate is rotatably attached to the air-conditioning blower, and is located at a position along the flow of the conditioned air blown from the outlet. The air inlet of the air conditioning fan is closed (Claim 7).

Furthermore, in order to easily collect the conditioned air blown from the vehicle interior air conditioning unit, a floor duct outlet connected to the vehicle interior air conditioning unit is installed toward the air collection port of the vehicle seat air conditioner. (Claim 8). Specifically, the air outlet of the floor duct connected to the vehicle interior air conditioning unit has its vertical direction inclined from 5 degrees to 60 degrees and the horizontal direction inclined from 10 degrees to 60 degrees (Claim 9). . In this way, since the air is blown obliquely upward to reach the air collecting port, the air collecting port does not have to be installed as low as the floor surface unlike the above-described embodiment.

As described below, according to the present invention, the conditioned air from the vehicle interior air conditioning unit can be reliably collected by the air collecting means. That is, conditioned air with little temperature change can be sucked into the seat air conditioning unit, and a structurally simple and inexpensive device can be provided.

As a wind collecting means, there is a wind collecting port having an opening facing the air outlet of a floor duct connected to the vehicle interior air conditioning unit, and the air collecting port is on the vehicle seat side, specifically, a seat fixed to the vehicle seat Since it is fixed to the side seat rail, the air collecting port moves together with the vehicle seat and can be moved in accordance with the longitudinal stroke, so that the lower end can maintain a small clearance from the vehicle floor. 2, 3). Therefore, the outflow of conditioned air to the rear seat side can be suppressed.

As the wind collecting means, the seat air conditioning unit is provided with a guide plate that can be changed to a position orthogonal to the flow of conditioned air from the outlet of the floor duct connected to the vehicle interior air conditioning unit and a position along the flow. Therefore, such a simple configuration is sufficient and an inexpensive device can be provided (claim 6).

Further, the guide plate is rotatably attached to the air blower for seat air conditioning, and closes the suction port of the air blower for seat air conditioning at a position along the flow of conditioned air blown out from the air outlet. Therefore, workability is good at the time of cleaning under the seat when not in operation. In particular, at the time of washing with water in some commercial vehicles and agricultural vehicles, it is possible to prevent the intrusion of water by closing the guide plate to avoid the risk of functional destruction of the filter and fan motor.

The air outlet of the floor duct connected to the vehicle interior air conditioning unit is installed toward the air collecting port of the vehicle seat air conditioning unit. Thereby, since the air is blown obliquely upward to reach the air collecting port, it is not necessary to install the air collecting port as low as the floor surface, and a mechanism for responding to the vertical and longitudinal strokes of the vehicle seat is provided. It is not necessary to have this, and an inexpensive device can be provided. Specifically, the air outlet of the floor duct is inclined from 5 degrees to 60 degrees in the vertical direction with respect to the floor, and the horizontal direction is inclined from 10 degrees to 60 degrees with respect to the sliding direction of the vehicle seat. Item 8, 9).

Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show a first embodiment of the present invention. A vehicle seat air-conditioning apparatus 1 includes a vehicle interior air-conditioning unit 2 for air-conditioning a vehicle interior, and conditioned air to a passenger seat of the vehicle. It consists of a seat air conditioning unit 3 to be sent and a floor duct 4 to send conditioned air from inside the vehicle interior air conditioning unit 2.

The vehicle interior air conditioning unit 2 introduces inside air or outside air, generates a flow in the introduced air, a blower (not shown), an evaporator (not shown) that cools the air introduced by the blower, A heater core (not shown) for heating the cold air cooled by the evaporator, the temperature of the blown air is controlled as compared with the heat load, and the air is blown from the desired air outlet into the vehicle compartment according to the air blowing mode. Yes.

The vehicle interior air conditioning unit 2 is connected with a floor duct 4 for vehicle seats, and air conditioned air cooled or heated by an evaporator and a heater core is blown out. You may fix only to blowing of warm air. In addition, when seat air conditioning is not performed, the conditioned air does not flow through the floor duct 4.

The floor duct 4 is piped along the surface of the center convex portion 7 a of the floor 7, and an air outlet 6 is formed at the tip thereof. The air outlet 6 is on the floor 7 and in the vicinity of the lower surface of the vehicle seat 8. Has been placed. Specifically, it is preferable that the occupant cannot see the vehicle seat 8 even when the vehicle seat 8 is returned most backward.

The seat air conditioning unit 3 sends air-conditioned air to the back, buttocks, and thighs of a passenger sitting on the vehicle seat 8 to suppress stickiness due to stuffiness or sweat. The seat back 10 has a stroke in the front-rear direction as well as the up-down direction, and is configured to fit the body of the seated occupant. The vehicle seat 8 is fixed to the vehicle body via a seat side rail 14a and a vehicle body side seat rail 14a in which the vehicle seat 8 moves in the front-rear direction (traveling direction). Although not shown, the vehicle seat 8 is also provided with a mechanism that strokes in the vertical direction.

The vehicle seat 8 is provided with air outlets 12 and 13, respectively, and a seat air conditioner blower 15 that sends conditioned air to the air outlets 12 and 13 through the passages 11 a and 11 b is attached to the bottom surface of the vehicle seat 8. Yes.

The blower 15 for seat air conditioning is provided with a centrifugal fan (not shown) inside and has a suction port (not shown) on the lower surface, and a slide duct 16 is connected to the suction port. . The slide duct 16 is composed of two members, and a lower portion is an air collecting port 18 having an opening 17.

The air collecting port 18 has a function of receiving and sucking conditioned air blown from the blower outlet 6. The air collecting port 18 is fixed to the seat side seat rail 14 a of the vehicle seat 3 through the attachment piece 20. Therefore, the air collecting port 18 moves in the front-rear direction together with the vehicle seat 8.

And since it is being fixed to the floor 7 by the seat rail 14b, the air collecting port 18 can always maintain a small clearance from the floor 7, and can collect air without missing the conditioned air blown out. In addition, it can respond to the movement of an up-down direction by the said slide duct 16 expanding-contracting to an up-down direction.

In the above-described configuration, in order to operate the seat air conditioning unit 3, first, the operation switch of the seat air conditioner provided in the instrument panel is turned ON. Then, conditioned air is blown out from the vehicle interior air conditioning unit 2 through the floor duct 4 from the outlet 6.

The blown air-conditioned air flows to the rear of the vehicle along the floor 7, reaches the air collecting port 18, is sucked from the opening 17, and is introduced into the seat air-conditioning blower 15 through the slide duct 16. The air is pressurized here, reaches the seat outlets 12 and 13 through the passages 11a and 11b, and is blown out from the seat outlets 12 and 13 to the occupant.

Even if the vehicle seat 8 is moved in the front-rear direction, the air collecting port 18 moves in response to the movement, and since it is fixed to the rail 14a, a small clearance from the floor 7 can be maintained. Thereby, the air-conditioning air quantity which escapes from the air collection port 18 can be decreased. Further, since the vertical dimension of the vehicle seat 8 can be changed by the slide duct 16, the introduction of the conditioned air is not hindered.

  In FIG. 3, a second embodiment is shown. This embodiment is a modification of the above-described embodiment, and the air-conditioning air sucked from the air collecting port 18 is introduced into the seat air-conditioning by the introduction duct 22 and the bellows duct 23 provided therein. Leading to the blower 15.

  The air collecting port 18 is attached to the seat side seat rail 14a by the attaching piece 20, and is moved with a small clearance on the floor 7 following the front-rear stroke of the vehicle seat 8. Then, the vertical stroke of the vehicle seat 8 can be expanded and contracted by the bellows duct 23 to guide the conditioned air without stagnation. Note that the air conditioner blower 15 is attached to the back surface of the seat back 10 of the vehicle seat 8. The other portions are the same as those in the first embodiment, and thus the same numbers are given and the description thereof is omitted.

  4 and 5 show a third embodiment of the present invention. This third embodiment differs from the first and second embodiments in the air collecting means for the conditioned air. That is, a guide plate 25 that also serves as an opening / closing lid for the suction port 24 is rotatably provided on the air-conditioning blower 15 attached to the bottom surface of the vehicle seat 8. The guide plate 25 is rotated by an actuator (not shown).

  When the seat air conditioner is operated, the guide plate 25 extends downward as shown in the figure, the suction port 24 is opened, and the conditioned air blown out from the outlet 6 of the floor duct 4 is blocked. The conditioned air that has been received and collected is sucked from the suction port 24. And it blows off from the seat outlets 12 and 13, and has the effect | action which gives a passenger | crew a comfortable feeling.

  When the operation of the seat air conditioner is stopped, the guide plate 25 returns to the position of the two-dot chain line and closes the suction port 24. Therefore, even if it is washed with water by cleaning or the like, the suction port 24 is closed, so that water does not enter the blower 15 for seat air conditioning, and the inside is not damaged. In addition, since the other part is the same as Example 1, 2, 3, it attaches | subjects the same number and the description is abbreviate | omitted.

  FIGS. 6 to 8 show a fourth embodiment of the present invention. This embodiment 4 has the same problem of making it easy to collect air, but unlike the first, second, and third embodiments, The outlet direction of the outlet 6 of the floor duct 4 is installed toward the air collecting port 18 of the blower 15 for seat air conditioning.

That is, the floor duct 4 is lowered along the center convex portion 7a of the floor 7, and the vertical direction of the air outlet 6 is inclined by 5 to 60 degrees with respect to the floor 7 (θ in FIG. 6).
In addition to 1), the lateral direction is inclined from 10 degrees to 60 degrees with respect to the sliding direction of the vehicle seat (θ2 in FIG. 8). By installing the air outlet 6 in this manner, the conditioned air can be blown out toward the air collecting port 18 of the air blower 15 for seat air conditioning. In this way, unlike the first, second, and third embodiments, the air collecting port need not be installed as low as the floor. In addition, since the other part is the same as Example 1, 2, 3, it attaches | subjects the same number and the description is abbreviate | omitted.

1 is a side view showing a first embodiment of the present invention. It is explanatory drawing for demonstrating the wind-collection port vicinity same as the above. It is a side view which shows the 2nd Example of this invention. It is a side view which shows the 3rd Example of this invention. It is a bottom view of a vehicle seat same as the above. It is a side view which shows the 4th Example of this invention. It is a bottom view of a vehicle seat same as the above. It is a top view of the fourth embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle seat air conditioner 2 Car interior air conditioning unit 3 Seat air conditioning unit 4 Floor duct 6 Air outlet 8 Vehicle seat 14a Seat side seat rail 14b Vehicle body side seat rail 15 Seat air conditioner blower 16 Slide duct 18 Air collecting port 20 Mounting piece 24 Inhalation Mouth 25 Guide plate

Claims (9)

A seat air-conditioning unit having at least a seat air-conditioning blower for sending air-conditioned air to the seat surface of the vehicle seat, and a vehicle interior air-conditioning unit that controls air-conditioning in the vehicle interior, from inside the vehicle interior air-conditioning unit to the seat air-conditioning unit In a non-connection type vehicle seat air conditioner that sends conditioned air,
A vehicle seat air-conditioning apparatus, wherein a wind collecting means for collecting conditioned air blown from a blow-out port of a floor duct connected to the vehicle interior air-conditioning unit is attached to a bottom surface side of the vehicle seat.   2. A wind collecting port having an opening facing an air outlet of a floor duct connected to the vehicle interior air conditioning unit as the air collecting unit, and the air collecting port is fixed to the vehicle seat side. The vehicle seat air-conditioning apparatus described.   3. The seat air conditioner according to claim 2, wherein the air collecting port is attached to a seat side seat rail fixed to the vehicle seat.   4. A slide duct for following up-and-down expansion and contraction is provided between the air collecting port and the seat air-conditioning fan attached to the vehicle seat. The vehicle seat air-conditioning apparatus described.   The bellows duct for following the expansion-contraction to an up-down direction is provided between the said air collecting port and the said sheet | seat air-conditioning fan attached to the said vehicle seat, The Claim 1, 2, or 3 characterized by the above-mentioned. The vehicle seat air-conditioning apparatus described.   As the air collecting means, the seat air conditioning unit is provided with a guide plate that can be varied between a position orthogonal to the flow of conditioned air from the outlet of the floor duct connected to the vehicle interior air conditioning unit and a position along the flow. The vehicle seat air conditioner according to claim 1.   The guide plate is rotatably attached to the air blower for seat air conditioning, and in the position along the flow of the conditioned air blown out from the air outlet, the suction port of the air blower for seat air conditioning is closed. The vehicular seat air conditioner according to claim 6.   A seat air-conditioning unit having at least a seat air-conditioning air blower for sending conditioned air to a seat surface of a vehicle seat, and a vehicle interior air-conditioning unit that controls air-conditioning in the vehicle interior, the seat air-conditioning unit from within the air-conditioning unit in the vehicle interior In the non-connection type vehicle seat air conditioner for sending conditioned air to the vehicle, the air outlet of the floor duct connected to the vehicle interior air conditioning unit is installed toward the air collecting port of the seat air conditioning fan of the seat air conditioning unit. Vehicle seat air conditioner.   The air outlet of the floor duct connected to the vehicle interior air conditioning unit inclines the vertical direction from 5 degrees to 60 degrees with respect to the floor, and inclines the horizontal direction from 10 degrees to 60 degrees with respect to the sliding direction of the vehicle seat. The vehicular seat air-conditioning apparatus according to claim 8.

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