JP2004314748A - Air conditioner for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner for a vehicle having a diffusion blow-off port whereby a comfortable space can be created in a whole area of a cabin. <P>SOLUTION: A plate 6 having a hole 3a constituting the diffusion blow-off port 3 is rotated. A blow-off state of air conditioning air blown out of the diffusion blow-off port 3 such as a blow-off direction and blow-off air quantity distribution can be varied, and thereby a position of the hole 3a is moved, for example, and an air current is varied, and thereby fluctuation effect can be obtained. Even when an air temperature and wind quantity (wind velocity) of a driver seat side and a passenger seat side or a front seat side and a rear seat side are different, the comfortable space can be created in the whole area of the cabin. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a vehicle air conditioner having a diffusion outlet for blowing out conditioned air from a large number of holes into a vehicle cabin.
[0002]
Problems to be solved by the prior art and the invention
If air conditioning air is blown locally (spot-like) from the face outlet or the like to the occupant, the occupant may feel uncomfortable (draft feeling). In order to reduce this uncomfortable feeling, the applicant must use a ceiling or an instrument. A vehicle air conditioner having a diffusion outlet for blowing out conditioned air from a large number of holes provided in an instrument panel (instrument panel) has already been filed (for example, Japanese Patent Application No. 2002-322666).
[0003]
By the way, since the diffused air outlet blows out the conditioned air to diffuse it, the temperature distribution and wind speed distribution in the passenger compartment are more easily and evenly compared to air conditioning with the air outlet such as the face air outlet that locally blows out the conditioned air. Can do it.
[0004]
However, for example, the driver side and the passenger side, or the front seat side and the rear seat side occupant may have different air temperature and air volume (wind speed) at which comfort is felt. With a vehicle air conditioner provided, it may be difficult to create a comfortable space in the entire room.
[0005]
In view of the above, the present invention provides, firstly, a novel vehicle air conditioner different from the conventional one, and secondly, in a vehicle air conditioner having a diffusion outlet, a comfortable air conditioner is provided throughout the room. The purpose is to be able to create space.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, a vehicle having a diffusion outlet (3) for blowing out conditioned air from a plurality of holes (3a) so as to diffuse the air into a vehicle interior. The air conditioner for use according to the present invention is characterized in that the air conditioner is provided with blowing state changing means (6, 7) for changing at least one of a blowing direction of the conditioned air blown out from the diffusion blowout port (3) and a blowing air volume distribution.
[0007]
As a result, a "fluctuation effect" can be obtained. For example, when the air temperature and the air volume (wind speed) at which the driver and the front passenger or the front and rear passengers feel comfortable are different. However, a comfortable space can be created in the entire room.
[0008]
According to the second aspect of the present invention, in the vehicle air conditioner having the diffusion outlet (3) for blowing out the conditioned air from the plurality of holes (3a) so as to diffuse into the vehicle cabin, It is characterized by comprising a blowing state changing means (6, 7) for changing the blowing state of the blown conditioned air.
[0009]
As a result, a "fluctuation effect" can be obtained. For example, when the air temperature and the air volume (wind speed) at which the driver and the front passenger or the front and rear passengers feel comfortable are different. However, a comfortable space can be created in the entire room.
[0010]
According to the third aspect of the present invention, the blowing state changing means (6, 7) changes the blowing state by moving a plate (6) having a plurality of holes (3a) formed therein. is there.
[0011]
According to a fourth aspect of the present invention, the large number of holes (3a) are constituted by a plurality of types of holes having different hole diameters.
[0012]
The invention according to claim 5 is characterized in that the large number of holes (3a) are configured such that the opening area density differs depending on the part.
[0013]
According to a sixth aspect of the present invention, the plurality of holes (3a) are formed so that the opening direction of the holes intersects the thickness direction of the plate (6).
[0014]
Incidentally, reference numerals in parentheses of the above-mentioned units are examples showing the correspondence with specific units described in the embodiments described later.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
(1st Embodiment)
FIG. 1 is a schematic diagram showing a diffusion outlet for ceiling blowing in the vehicle air conditioner according to the present embodiment, and FIG. 2 is a diagram showing a state of conditioned air blown out from the diffusion blowing outlet for ceiling blowing. .
[0016]
As shown in FIG. 1, the vehicle air conditioner according to the present embodiment is installed in an instrument panel and mainly performs air conditioning on the front seat side, and is mainly installed in a trunk room. It comprises a rear seat air conditioning unit 1 for performing air conditioning on the rear seat side, an outdoor unit mounted in an engine room, and the like.
[0017]
Both air conditioning units are a blower, an evaporator serving as a cooling unit for cooling air blown into the room, a heater heating the air blown into the room, a blowout mode switching unit for switching an opening for blowing air, and a housing for these. And an air-conditioning casing forming an air passage.
[0018]
The outdoor unit includes a compressor and a radiator that constitute a vapor compression refrigerator, and the compressor according to the present embodiment operates by receiving power from a traveling engine.
[0019]
A diffusion outlet 3 for blowing out conditioned air from a large number of holes 3a so as to diffuse into the vehicle interior is provided in substantially the entire area of the ceiling of the vehicle interior. In the present embodiment, a rear seat side air conditioning unit is provided. From 1, the conditioned air is supplied to the diffusion outlet 3.
[0020]
The diffusion outlet 3, that is, the ceiling duct 4a provided with a large number of holes 3a is connected to the rear seat side through a duct 4b laid in a C pillar 5 which is a pillar supporting the ceiling on the rear glass side. It is connected to the air conditioning unit 1.
[0021]
A large number of holes 3a constituting the diffusion outlet 3 are rotatably provided on a substantially disk-shaped plate 6 rotatably disposed on a ceiling duct 4a, as shown in FIG. , And is rotationally driven by an actuator 7 such as a servomotor.
[0022]
The actuator 7 includes a motor 7a, a speed reduction mechanism including a plurality of gears 7b and the like, and a casing 7c for housing these 7a and 7b, and the operation thereof is controlled by an electronic control unit for an air conditioner.
[0023]
As is clear from the above description, in the present embodiment, a blowing state changing unit configured to change the blowing state of the conditioned air blown from the diffusion blowing port 3 by the plate 6, the actuator 7, and the like.
[0024]
Next, the operation and effect of the present embodiment will be described.
[0025]
In the present embodiment, by rotating the plate 6, it is possible to change the blowing direction of the conditioned air blown out from the diffusion blow-out port 3 and the blowing state such as the blowing air volume distribution. As a result, the airflow changes, and a "fluctuation effect" can be obtained.
[0026]
Therefore, even if the driver's seat side and the passenger's seat side or the front seat side and the rear seat side occupants feel different in air temperature and air flow (wind speed), a comfortable space is created in the entire room. Could be able to.
[0027]
(2nd Embodiment)
In the first embodiment, the opening direction of the hole 3a is parallel to the plate thickness direction of the plate 6, but in the present embodiment, the opening direction intersects the plate thickness direction of the plate 6 as shown in FIG. It is inclined.
[0028]
Thereby, as shown in FIG. 6, the airflow blown out from the diffusion outlet 3 can be further changed, so that the "fluctuation effect" can be enhanced.
[0029]
(Third embodiment)
In the first embodiment, the opening area density of the diffusion outlet 3 is made uniform over substantially the entire area by providing the holes 3a having the same hole diameter at the same density. However, as shown in FIG. The diffusion outlet 3 is constituted by a plurality of types of holes 3a having different hole diameters, and the opening area density of the diffusion outlet 3 is made different depending on the part.
[0030]
Thereby, if the plate 6 is continuously rotated, a larger “fluctuation effect” can be obtained.
[0031]
If the plate 6 is rotated to a predetermined position and stopped, the temperature distribution and the wind speed distribution can be positively biased.
[0032]
(Other embodiments)
In the above-described embodiment, the diffusion outlet 3 and the blowing state changing means are provided on the ceiling portion. However, the present invention is not limited to this. For example, the diffusion outlet 3 is provided on another portion such as an instrument panel. You may.
[0033]
Further, in the above-described embodiment, the conditioned air is supplied from the rear air conditioning unit 1 to the diffusion outlet 3. However, the present invention is not limited to this. May be supplied with conditioned air.
[0034]
Further, in the above-described embodiment, the plate 6 has a disk shape, but the present invention is not limited to this, and may have another shape.
[0035]
Further, the actuator 7 for moving the plate 6 is not limited to the one shown in the above embodiment.
[0036]
The operation of the actuator 7 may be either automatic control in conjunction with the target blowing temperature TAO or the blowing mode, or manual control using a manual switch or the like.
[Brief description of the drawings]
FIG. 1 is a schematic view showing a diffusion outlet for ceiling blowing in a vehicle air conditioner according to an embodiment of the present invention.
FIG. 2 is a diagram showing a state of conditioned air blown out from a diffusion outlet for ceiling blowing in the vehicle air conditioner according to the first embodiment of the present invention.
FIG. 3 is a perspective view of a plate according to the first embodiment of the present invention.
FIG. 4 is a view showing a blowing state changing mechanism according to the first embodiment of the present invention.
FIG. 5 is a perspective view of a plate according to a second embodiment of the present invention.
FIG. 6 is a diagram illustrating a state of conditioned air blown from a ceiling blow-off diffusion outlet in a vehicle air conditioner according to a second embodiment of the present invention.
FIG. 7 is a perspective view of a plate according to a third embodiment of the present invention.
FIG. 8 is a diagram illustrating a state of conditioned air blown from a ceiling blow-off diffusion outlet in a vehicle air conditioner according to a third embodiment of the present invention.
[Explanation of symbols]
3: diffusion outlet, 3a: hole, 4a: ceiling duct,
6 ... plate, 7 ... actuator.

Claims (6)

In a vehicle air conditioner having a diffusion outlet (3) for blowing out conditioned air from a large number of holes (3a) so as to diffuse into a vehicle interior,
An air conditioner for a vehicle, comprising: a blowing state changing means (6, 7) for changing at least one of a blowing direction of a conditioned air blown from the diffusion outlet (3) and a blown air amount distribution. In a vehicle air conditioner having a diffusion outlet (3) for blowing out conditioned air from a large number of holes (3a) so as to diffuse into a vehicle interior,
An air conditioner for a vehicle, comprising: a blowing state changing means (6, 7) for changing a blowing state of the conditioned air blown out from the diffusion outlet (3). The vehicle according to claim 1 or 2, wherein the blowing state changing means (6, 7) changes the blowing state by moving a plate (6) in which the plurality of holes (3a) are formed. Air conditioner. The air conditioner for a vehicle according to any one of claims 1 to 3, wherein the plurality of holes (3a) include a plurality of types of holes having different hole diameters. The vehicle air conditioner according to any one of claims 1 to 3, wherein the plurality of holes (3a) are configured such that an opening area density is different depending on a part. The plurality of holes (3a) are formed such that an opening direction of the holes intersects a thickness direction of the plate (6). Vehicle air conditioner.

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