JP2005035492A - Air conditioner for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner for a vehicle, correcting a deviation of temperature balance on the right and left sides of an occupant at a rear seat under the condition advantageous in space and cost. <P>SOLUTION: This air conditioner for a vehicle is so constructed that blow-off openings 6 for blowing off the air-conditioned wind toward the rear seat are provided in the rear end parts of front doors 3L, 3R, ducts 4 are provided in the insides of the front doors, and the ducts 4 are communicated with the blow-off openings. The base end parts of the ducts 4 in the insides of the front doors are respectively provided with a connection port 4a connecting to an air-conditioned wind lead-out duct from an air conditioning unit 2 in an instrument panel 1 in a state of the front doors being closed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a vehicle air conditioner that improves the comfort of a rear seat occupant.

  In a normal vehicle, an air conditioner unit is provided inside an instrument panel in front of the passenger compartment, and the conditioned air generated by the air conditioner unit is supplied into the passenger compartment through a blowout port provided in the instrument panel.

  In this case, the rear seat generally receives the flow of conditioned air from the front seat, but the conditioned air blown from the blowout port of the instrument panel may not reach the rear seat sufficiently.

Therefore, for example, a blow grill for blowing air-conditioning air toward the rear seat is provided at the rear end of the center console installed between the driver seat and the passenger seat (see Patent Document 1), or disposed along the floor. The tip of the duct is connected to the lower end of the duct arranged in the center pillar, and the conditioned air is guided upward along the center pillar so as to blow out toward the rear seat occupant from the air outlet provided in the upper part of the center pillar. Or
JP-A-11-227453 (FIGS. 1 and 2)

  However, when the influence of solar radiation through the window glass of the door and the influence of the outside air temperature are large as in the summertime under the hot sun, the rear grille at the rear end of the center console is directed to the rear seat as in the technique described in Patent Document 1. Even if the air conditioned air is blown out, the air conditioned air does not reach the rear seat occupant, especially the window side half body, so that there is a problem that the temperature difference between the window side half body and the vehicle interior half body is widened, resulting in poor air conditioning feeling. In addition, when the conditioned air is sent to the rear seat occupant through the duct provided in the center pillar, the route of the duct becomes long, which is disadvantageous in terms of space and cost.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicle air conditioner that can correct a problem in the temperature balance between the left and right rear passengers under conditions that are advantageous in terms of space and cost.

  The invention of claim 1 is provided with a blow-out port that blows conditioned air toward the rear seat at the rear end of the front door, and a duct is provided inside the front door so that the duct communicates with the blow-out port, A connection port is provided at the base end portion of the duct inside the front door so as to be connected to the conditioned air derivation duct from the air conditioner unit in the instrument panel with the front door closed.

  According to the invention of claim 1, since the conditioned air can be blown out to the rear seat occupant through the duct arranged inside the front door, the conditioned air from the air conditioner unit is efficiently guided to the rear seat side through a short path. be able to. In addition, since the conditioned air is blown out to the rear seat occupant from the air outlet provided at the rear end of the front door, the conditioned air can be efficiently supplied to the passenger's window half, resulting in the effects of solar radiation through the door glass. The problem of the temperature balance between the left and right occupants due to the outside air temperature can be reduced. In addition, since the duct can be passed using the empty space in the front door, it is advantageous in terms of space, and the assembly is better than the case where the duct is arranged along the floor, and the cost is reduced. Can contribute.

  Hereinafter, a vehicle air conditioner according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a plan view showing a schematic configuration of a vehicle air conditioner according to the embodiment, FIG. 2 is a view seen from the inside of the front door, FIG. 3 is a cross-sectional view of the front door, and FIG. It is a schematic plan view which shows the blowing condition.

  As shown in FIG. 1, an air conditioner unit 2 is installed inside an instrument panel 1 in front of the passenger compartment A. Front seats 11 and 12 are installed in the front seat portion of the passenger compartment A on the driver's seat side and the passenger seat side, and front doors 3L and 3R having front end portions connected to the vehicle body by hinges are arranged on the left and right sides thereof. Has been.

  The air conditioner unit 2 includes a casing 20, a blower 21, an evaporator 22, a heater 23, and the like, and the conditioned air generated by the unit is passed through a vent duct (outlet duct) 25 extending in the left-right direction in the instrument panel 1. Supply to passenger compartment A. A center vent air outlet 13 and a side vent air outlet 14 are provided on the side of the instrument panel 1 facing the passenger, and the conditioned air flowing into the air distribution duct 25 through these vent air outlets 13 and 14 It blows out toward the upper body of the front passenger.

  As shown in FIGS. 2 and 3, a door trim 32 as an interior material is attached to the inside of the door panel 31 constituting the front doors 3 </ b> L and 3 </ b> R, and the door trim 32 is attached to the upper edge of the door trim 32. A plurality of outlets 5 that are elongated along the longitudinal direction of the upper edge (the longitudinal direction of the vehicle) are provided. The plurality of air outlets 5 arranged in the range from the front end to the rear end of the door trim are all provided upward or slightly toward the inside of the vehicle so as to blow air-conditioned air along the inner surface of the door glass 35. Further, as shown in FIG. 4, the rear edge of the upper edge of the door trim 32 is provided with a rear seat outlet 6 for blowing conditioned air toward the rear seat 42 (rear seat direction). .

  In FIG. 3, 33 is a door beam and 34 is an armrest. Moreover, in FIG. 4, 40 is a center pillar and 43L is a rear door. The air outlet 6 directed toward the rear seat is directed in a direction avoiding the center pillar 40.

  Inside the front doors 3L and 3R, a duct 4 extending in the vehicle front-rear direction is provided along the upper edge of the door trim 32, and the air outlets 5 at the upper edge of the door trim communicate with the duct 4. The front end of the duct 4 communicates with the rear seat outlet 6. Further, the base end portion of the duct 4 is located in the vicinity of the front ends of the front doors 3L and 3R. At the base end portions, the vent duct 25 in the instrument panel 1 with the front doors 3L and 3R closed. A connection port 4a that can be connected to the right and left connection ends is provided. A sealing material 7 is provided between the connection port 4a and the connection end on the vent duct 25 side for airtight connection.

  Next, the operation will be described.

  In this vehicle air conditioner, a duct 4 for guiding the conditioned air from the air conditioner unit 2 is disposed inside the front doors 3L, 3R, and the air outlet 5 is communicated with the duct 4 at the upper edge of the door trim 32. Since it is provided, as shown in FIG. 2 and FIG. 3, the conditioned air can be blown into the vehicle from the outlet 5 at the upper edge of the door trim 32. That is, since the conditioned air can be blown into the passenger compartment A from the inside of the door glass 35, a sufficient amount of conditioned air can be supplied from the side to the passenger's window half. As a result, it is possible to reduce the problem of the temperature balance between the left and right of the occupant due to the influence of solar radiation through the door glass 35 and the influence of the outside air temperature.

  In particular, since the outlet 5 at the upper edge of the door trim 32 is formed elongated along the upper edge of the door trim 32, the conditioned air can be blown out along the inner surface of the door glass 35. Therefore, the influence of radiant heat due to solar radiation can be effectively reduced, and comfort in summer can be enhanced.

  Further, since the rear seat outlet 6 is provided at the rear ends of the front doors 3L, 3R, the conditioned air can be supplied from the outlet 6 toward the occupant of the rear seat 42. In this case, since the conditioned air can be blown out to the rear seat occupant through the duct 4 disposed inside the front doors 3L and 3R, the conditioned air from the air conditioner unit 2 is efficiently guided to the rear seat side through a short path. can do.

  Moreover, since the conditioned air is blown from the air outlet 6 provided at the rear ends of the front doors 3L and 3R toward the rear seat occupant, the conditioned air can be efficiently supplied to the passenger's window side half. In addition, it is possible to reduce the problem of the temperature balance between the left and right occupants due to the effects of solar radiation through the rear door glass and the influence of outside air temperature.

  Further, since the duct 4 for guiding the conditioned air to the rear seats is passed through the front doors 3L and 3R in this way, it is advantageous in terms of space compared with the case where the ducts are arranged along the floor and the center pillar. In addition, the assembling property is also good, which can contribute to cost reduction.

  FIG. 5 is a perspective view of another type of front door 53L as seen from the vehicle inner side.

  In the case of the front door 53L, switches 54 such as a window regulator are disposed near the front end of the upper edge of the door trim 32. Accordingly, the air outlet 5 for blowing the conditioned air upward is provided in a range excluding the vicinity of the front end of the door trim 32. Even when the air outlet 5 cannot be provided in the vicinity of the front end in this manner, the range can be sufficiently covered by the side vent air outlet, and thus no particular problem occurs.

  In the above embodiment, the case where the blower outlet 5 for blowing the conditioned air upward along the inner surface of the door glass 35 is provided at the upper edge of the door trim 32 of the front doors 3L and 3R is omitted. May be.

  6 is a view as seen from the vehicle interior side of the front door 63L in which the air outlet 5 (see FIG. 2) for blowing the conditioned air upward along the inner surface of the door glass 35 is eliminated, and FIG. 7 is a longitudinal sectional view thereof. In this example, the duct 4 disposed inside the front door 63L is provided only to guide the conditioned air to the rear seat outlet 6. In this case, since the air volume is reduced, the cross-sectional area of the duct 4 can be reduced.

It is a top view which shows schematic structure of the vehicle air conditioner of 1st Embodiment of this invention. It is the figure seen from the vehicle inner side of the front door in the apparatus. It is sectional drawing of the front door. It is a schematic plan view which shows the blowing condition of the air conditioned wind toward the rear seat in the same apparatus. It is a perspective view which shows the example which provided the blower outlet in another type front door. It is the figure seen from the vehicle inner side of the front door in the vehicle air conditioner of 2nd Embodiment of this invention. It is sectional drawing of the front door.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Instrument panel 2 Air-conditioner unit 3L, 3R, 53L, 63L Front door 4 Duct 4a Connection port 5 Outlet 6 Outlet for rear seats 25 Vent duct (outlet duct)
32 door trim

Claims (1)

At the rear end of the front door (3L, 3R), an air outlet (6) for blowing conditioned air toward the rear seat is provided, and a duct (4) is provided inside the front door (3L, 3R). Instrument with the duct (4) in communication with the outlet (6) and the front door (3L, 3R) closed at the base end of the duct (4) inside the front door (3L, 3R) A vehicle air conditioner provided with a connection port (4a) connected to an air conditioned wind lead duct (25) from an air conditioner unit (2) in a panel (1).

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