JP2004148965A - Air conditioner for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make an air conditioner for a vehicle send air-conditioning air directly to a driver. <P>SOLUTION: The air conditioner comprises an air-conditioning unit 1a, and meter blowout outlets 3a, 3b for sending the air-conditioning air sent out by the air-conditioning unit 1a into a vehicle room. The meter blowout outlets 3a, 3b have wind directing boards 40a, 40b, respectively, which are adjusted to cross the direction of blows from each board. As a result, flows of the air-conditioning air sent out from the meter blowout outlets 3a, 3b collide with each other in a steering 100, making a synthetic airflow, which proceeds to the driver who is at the rear side of the vehicle relative to the meter 20, thereby the comfortableness of the driver is improved. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vehicle air conditioner having an outlet for blowing out blast air into a vehicle interior.
[0002]
2. Description of the Related Art
2. Description of the Related Art Conventionally, an air conditioner for a vehicle includes an air conditioning unit that adjusts a state of blown air (that is, an outlet temperature and a flow rate), and an outlet that blows out the blown air adjusted by the air conditioning unit into a vehicle compartment. There is something. As one of the air outlets, a face air outlet for blowing out air to the upper body of the occupant is disposed at substantially the center of the instrument panel.
[0003]
However, a display, an operation switch panel, and the like are arranged substantially at the center of the instrument panel. In recent years, the functions of in-vehicle devices have become more sophisticated, and the size of the display and the number of operation switches have tended to increase at approximately the center of the instrument panel. A face outlet is arranged at the approximate center of the instrument panel. There is a possibility that there will be a shortage of places for this.
[0004]
On the other hand, the present inventors have considered placing the face outlet in the instrument panel toward the rear of the vehicle in the vicinity of the meter device, but depending on the location of the face outlet, the face outlet may be arranged. It has been found that the blast air blown out from the vehicle collides with an obstacle such as a steering wheel, so that the blast air does not directly hit an occupant (driver).
[0005]
In view of the above, an object of the present invention is to provide a vehicle air conditioner that can blow out blast air in a desired direction while avoiding an obstacle.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, an air conditioning unit (1a) that adjusts a state of blast air, and blows blast air whose state is adjusted by the air conditioning unit into a vehicle compartment. Air conditioner for a vehicle, comprising first and second air outlets (3a, 3b) for blasting the air, and blowing air blown out from the first and second air outlets respectively collide to generate a synthetic airflow. It is characterized by being made to be.
[0007]
As described above, the air blown out by the first and second air outlets is caused to collide with each other to generate a synthetic airflow, so that the blast air as the synthetic airflow can be avoided in a desired direction while avoiding obstacles. Can blow out.
[0008]
Specifically, as in the invention described in claim 2, the first and second air outlets may be arranged in the instrument panel (10) near the meter section (20). . Furthermore, as in the invention described in claim 3, the first and second outlets may be arranged so as to sandwich the meter section.
[0009]
In the invention described in claim 4, the first and second outlets may be arranged in the left-right direction. According to the fifth aspect of the present invention, the first and second outlets may be arranged vertically.
[0010]
In the invention according to claim 6, the ratio of the first air volume blown out from the first air outlet to the second air volume blown out from the second air outlet is adjusted to adjust the combined air flow. Means (50, 60) for adjusting the wind direction may be provided.
[0011]
In the invention described in claim 7, the wind direction adjusting means (40a, 40b) for adjusting the wind direction of the blown air blown out from at least one of the first and second outlets may be provided.
[0012]
Incidentally, the reference numerals in parentheses of the respective means are examples showing the correspondence with specific means described in the embodiments described later.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
(1st Embodiment)
1 and 2 show a vehicle air conditioner according to a first embodiment of the present invention. FIG. 1 is a schematic diagram illustrating a vehicle air conditioner, and FIG. 2 is a perspective view illustrating an arrangement of air outlets of the vehicle air conditioner.
[0014]
The vehicle air conditioner includes an air conditioning unit 1a as shown in FIG.
[0015]
The air-conditioning unit 1a includes a blower that generates air, a cooler that generates cool air by cooling the air using the heat absorption of a vapor compression refrigerator, a heater that heats cool air using engine cooling water as a heat source, and a cool air. A bypass passage for bypassing the heater, a mixing chamber that mixes the cool air that has passed through the bypass passage and the warm air that has been superheated by the heater to generate conditioned air, an airflow that flows through the heater and an airflow that flows through the bypass passage; The air mixing ratio is adjusted according to the degree of opening, and the air-mixing air outlet temperature of the conditioned air is stored.
[0016]
Further, a duct 2 is connected to the vehicle air conditioner, and the duct 2 guides the blast air blown out of the mixing chamber by adjusting the temperature by the air conditioning unit 1a to the vehicle interior side. Is connected to a branch duct 4. The branch duct 4 branches the air blown by the duct 2 and guides the blown air to the meter outlets 3a and 3b.
[0017]
A rotating door (plate door) 50 for adjusting the air flow rate is provided in the branch duct 4, and the rotating door 50 is driven by a stepping motor 60 to blow the air blown by the duct 2. Among them, the ratio between the amount of air blown toward the meter outlet 3a and the amount of air blown toward the meter outlet 3b is adjusted.
[0018]
Here, as shown in FIG. 2, the meter outlets 3a and 3b are located in the instrument panel 10 near, for example, a meter device 20 that displays a vehicle speed, an engine speed, a running distance, and the like on a liquid crystal panel or the like. Are located. The meter outlets 3a and 3b are horizontally disposed below the meter device 20, and are opened in a rectangular shape toward the rear of the vehicle.
[0019]
In addition, the code | symbol 30 in FIG. 2 shows a large display. Reference numeral 31 denotes a centralized operation switch, which is an operation switch for intensively operating the operation panel 51 of the air conditioner, the operation panel of the audio device, the operation panel of the car navigation, and the like.
[0020]
Furthermore, as shown in FIG. 1, wind direction plates 40a and 40b are provided in the meter outlets 3a and 3b, respectively, and the wind direction plates 40a and 40b are set up in a substantially vertical direction, and The instrument panel 10 is rotatably supported by the instrument panel 10. Thus, by changing the direction of the wind direction plates 40a, 40b in the vehicle left-right direction, the direction of the air blown out from the meter outlets 3a, 3b can be changed in the vehicle left-right direction.
[0021]
Further, the vehicle air conditioner includes an electronic control unit (A / CECU) 50 as shown in FIG. The electronic control unit 50 includes a computer, and performs processing for controlling the number of revolutions of the blower of the air conditioning unit 1a (that is, air flow control), selection processing of an outlet mode, and opening of the air mix door via a servomotor. A process for controlling the air temperature of the blown air by controlling the degree and a process for rotating the rotary door 50 via the stepping motor 60 to adjust the ratio of the air volume from the meter outlets 3a and 3b are performed.
[0022]
Next, the operation of the present embodiment will be described with reference to FIGS.
[0023]
First, when the power is turned on and the electronic control unit 50 starts controlling the air conditioning unit 1a, the air conditioning unit 1a starts adjusting the temperature of the blown air and adjusting the amount of the blown air and sends the air-conditioned air to the duct 2 and the branch duct 4. Through the meter outlets 3a and 3b.
[0024]
Here, when the wind direction plates 40a, 40b of the meter outlets 3a, 3b are directed in parallel in the vehicle front-rear direction as shown by a chain line in FIG. The air outlets 3a and 3b respectively blow out the conditioned air toward the rear of the vehicle.
[0025]
Accordingly, the conditioned air blown from the meter outlets 3a and 3b collides with the steering wheel 100 or the hand of the driver holding the steering wheel, as indicated by an arrow 200a. Therefore, the conditioned air blown from the meter outlets 3a and 3b cannot be directly applied to the upper body of the driver.
[0026]
Therefore, when the occupant feels annoyed by the conditioned air blown out in this manner, the occupant operates to tilt the wind direction plates 40a and 40b of the meter outlet 3a to the right side of the vehicle as shown by a solid line in FIG. Then, the wind direction plates 40a and 40b of the meter outlet 3b are tilted to the left of the vehicle as shown by the solid line in FIG. That is, the wind direction plates 40a and 40b of the meter outlets 3a and 3b are adjusted so that the blowing directions cross each other.
[0027]
In this case, air is blown toward the right side of the vehicle from the meter outlet 3a as indicated by an arrow 200b in FIG. 4, and is blown toward the left side of the vehicle from the meter outlet 3b as indicated by an arrow 200c in FIG. As a result, the conditioned air blown out from the meter outlets 3a and 3b collides inside the steering wheel 100, so that a synthetic airflow that flows behind the vehicle as indicated by an arrow 200d is generated, and the synthetic airflow is sent to the driver as blowing air. You can apply it directly.
[0028]
Next, when the occupant performs an operation for instructing the operation unit 51 to cause the combined airflow to fluctuate left and right, the electronic control device 50 uses the stepping motor 60 based on the operation signal from the operation unit 51 to The revolving door 50 is swung. Accordingly, of the amount of air blown by the duct 2, the ratio of the air blown amount SA guided to the meter outlet 3a and the blown air amount SB guided to the meter outlet 3b is repeatedly changed. .
[0029]
As a result, a period in which the air volume SA is larger than the air volume SB (SA> SB) and a period in which the air volume SA is smaller than the air volume SB (SA> SB) are alternately repeated.
[0030]
Here, during the period in which the blown air amount SA is larger than the blown air amount SB, the blown air amount blown out from the meter outlet 3a is larger than the blown air amount blown out from the meter outlet 3b. Therefore, the synthetic airflow generated by the collision of the conditioned air blown out from the meter outlets 3a, 3b flows from the inside of the steering wheel 100 to the right side of the vehicle as indicated by the arrow 200e, and can directly hit the right side of the upper body of the driver.
[0031]
Also, during a period in which the blown air amount SA is smaller than the blown air amount SB, the blown air amount blown from the meter outlet 3a is smaller than the blown air amount blown from the meter outlet 3b. Therefore, the synthetic airflow generated by the collision of the conditioned air blown out from the meter outlets 3a and 3b flows from the inside of the steering wheel 100 to the left side of the vehicle as indicated by an arrow 200f shown in FIG. You can hit it.
[0032]
As described above, by repeatedly changing the ratio between the blown air amount SA and the blown air amount SB, the direction in which the synthetic airflow flows can be changed, and the position where the synthetic airflow hits the driver changes right and left. For this reason, the driver can feel that the combined airflow fluctuates left and right.
[0033]
Hereinafter, features of the present embodiment will be described. That is, the air conditioner includes an air conditioning unit 1a that blows out conditioned air whose temperature and air volume are adjusted, and meter outlets 3a and 3b that blow out the conditioned air blown out by the air conditioning unit 1a into a vehicle interior. The air direction plates 40a and 40b of the meter outlets 3a and 3b are adjusted so that the air blowing directions cross each other. As a result, the conditioned air blown from the meter outlets 3a and 3b respectively collide in the steering 100, and the combined airflow is steered in a desired direction, that is, in the direction of the driver behind the vehicle with respect to the meter device 20. It can blow out while avoiding obstacles such as 10. Therefore, the comfort for the driver can be improved.
[0034]
In addition, by repeatedly adjusting the amount of air blown from the meter outlets 3a and 3b, the direction in which the synthetic airflow flows can be changed left and right, and the driver can feel that the synthetic airflow fluctuates left and right. . Therefore, the comfort for the driver can be further improved.
[0035]
(2nd Embodiment)
In the first embodiment, the meter outlets 3a and 3b are arranged below the meter device 20. However, in the second embodiment, the meter outlets 3a and 3b are interposed instead. So as to be arranged vertically as shown in FIG.
[0036]
As a result, the conditioned air blown out from the meter outlets 3a and 3b can collide inside the steering wheel 100 to generate a synthetic airflow flowing to the rear of the vehicle, and the synthetic airflow is directly sent to the driver as blown air. You can hit it.
[0037]
Further, in the present embodiment, by rotating the revolving door 50, the air volume SA guided to the meter outlet 3a and the air volume SB guided to the meter outlet 3b out of the air volume guided by the duct 2. 8 and 9 when the ratio is repeatedly changed.
[0038]
Here, during a period in which the blown air amount SA is larger than the blown air amount SB, the blown air amount from the meter outlet 3a is larger than the blown air amount from the meter outlet 3b. At this time, as shown in FIG. 8, the combined airflow generated by the collision of the conditioned air blown out from the meter outlets 3a, 3b as shown by arrows 300a, 300b is generated from the inside of the steering 100 near the driver's chest as shown by arrow 300c. Can be directly applied.
[0039]
Further, during a period in which the air volume SA is smaller than the air volume SB, the air volume from the meter outlet 3a is smaller than the air volume from the meter outlet 3b. At this time, as shown in FIG. 9, a combined airflow generated by the collision of the conditioned air blown out from the meter outlets 3a and 3b as shown by arrows 300d and 300e is generated from the inside of the steering wheel 100 near the driver's neck as shown by an arrow 300f. Can be directly applied.
[0040]
As described above, by repeatedly changing the ratio between the blown air amount SA and the blown air amount SB, the direction in which the synthetic airflow flows can be changed up and down, and the position where the synthetic airflow hits the driver changes up and down. For this reason, the driver can feel that the synthetic airflow fluctuates up and down.
[0041]
(Third embodiment)
In the first embodiment, the meter outlets 3a, 3b are arranged below the meter device 20. However, in the third embodiment, the meter outlets 3a, 3b are interposed instead. As shown in FIG. 10, the meter outlets 3a and 3b are arranged on the left and right, and a vertically long meter outlet is used.
[0042]
(Other embodiments)
Further, in the first embodiment, an example is shown in which the direction of the wind direction plates 40a and 40b of the meter outlet 3a is changed by the operation of the occupant. However, the electric motor such as a servomotor or a stepping motor is driven to drive the motor. The direction of the wind direction plates 40a and 40b may be changed.
[0043]
In the first embodiment, a rotating door 50 is provided in the branch duct 4 in order to adjust the wind direction of the synthetic airflow, and the metering outlet 3a side of the blowing amount of the blowing air guided by the duct 2 is provided. Although the ratio between the amount of air blown out and the amount of air blown out to the meter outlet 3b is adjusted, the present invention is not limited to this. The conditioned air is blown out to the outlet 3b side. Then, by adjusting the amount of air blown by the two blowers, the ratio between the amount of air blown toward the meter outlet 3a and the amount of air blown toward the meter outlet 3b is adjusted to adjust the direction of the synthetic airflow. You may do so.
[Brief description of the drawings]
FIG. 1 is a diagram showing a schematic diagram of a vehicle air conditioner according to a first embodiment of the present invention.
FIG. 2 is a perspective view showing an arrangement of a meter outlet of the vehicle air conditioner shown in FIG.
FIG. 3 is a diagram for explaining the operation of the vehicle air conditioner shown in FIG. 1;
FIG. 4 is a diagram for explaining the operation of the vehicle air conditioner shown in FIG. 1;
FIG. 5 is a view for explaining the operation of the vehicle air conditioner shown in FIG. 1;
FIG. 6 is a diagram for explaining the operation of the vehicle air conditioner shown in FIG. 1;
FIG. 7 is a view showing a vehicle air conditioner according to a second embodiment of the present invention.
8 is a diagram for explaining the operation of the vehicle air conditioner shown in FIG. 7;
9 is a diagram for explaining the operation of the vehicle air conditioner shown in FIG.
FIG. 10 is a view showing a vehicle air conditioner according to a second embodiment of the present invention.
[Explanation of symbols]
1a: air conditioning unit, 3a, 3b: meter outlet, 20: meter equipment, 40a, 40b: wind direction board, 100: steering.

Claims (7)

An air conditioning unit (1a) for adjusting the state of the blown air;
A first and second air outlets (3a, 3b) for blowing out blast air, the state of which has been adjusted by the air conditioning unit, into a vehicle interior, comprising:
An air conditioner for a vehicle, wherein the air blown from the first and second air outlets collide with each other to generate a synthetic airflow. The vehicular air conditioner according to claim 1, wherein the first and second air outlets are arranged in the instrument panel (10) near the meter section (20). The vehicle air conditioner according to claim 2, wherein the first and second outlets are arranged so as to sandwich the meter unit. The vehicle air conditioner according to any one of claims 1 to 3, wherein the first and second air outlets are arranged in a left-right direction. The air conditioner for a vehicle according to any one of claims 1 to 3, wherein the first and second air outlets are arranged vertically. Means (50) for adjusting the air flow ratio of the first air flow blown out from the first air outlet and the second air flow blown out from the second air outlet to adjust the air direction of the synthetic airflow The air conditioner for a vehicle according to any one of claims 1 to 5, wherein the air conditioner comprises: 7. The apparatus according to claim 1, further comprising: a wind direction adjusting means (40a, 40b) for adjusting a wind direction of blowing air blown out from at least one of the first and second outlets. An air conditioner for a vehicle as described in the above.

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