JP3648800B2 - Automotive air conditioner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automotive air conditioner configured to blow air independently into a front seat side space and a rear seat side space of an automobile.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there is known an automobile air conditioner configured to blow air independently to a front seat side space and a rear seat side space of an automobile. Generally, in such an air conditioner for automobiles, wind is introduced into the front seat side space from a center outlet formed at the center of the instrument panel and side outlets formed on both sides of the instrument panel. Wind is blown out from the rear seat side outlet formed on the rear seat side to the blowout and rear seat side space.
[0003]
[Problems to be solved by the invention]
By the way, since the center air outlet is formed at the center of the instrument panel, the air blown from the center air outlet is different from the air blown from the side air outlet. There is a high percentage of people passing through the space to the rear seat space.
[0004]
Therefore, even if the amount of air blown from the center air outlet and the side air outlet to the front seat side space and the amount of air blown from the rear seat side air outlet to the rear seat side space are adjusted independently. If the wind speed of the blowout air from the center outlet is too high, the amount of air that escapes from between the two seats to the rear seat side space increases, so the amount of air blown into the front seat side space is larger than the desired air amount. It will decrease. Further, since the amount of air that flows from the space between the two seats to the rear seat side space increases, the amount of air blown into the rear seat side space is increased by a corresponding amount.
[0005]
Therefore, in view of the above problems, the present invention provides an automotive air conditioner configured to blow air independently to the front seat side space and the rear seat side space, among the blown air blown from the center blower outlet. It is an object of the present invention to make it possible to accurately and independently adjust each blowing air to the front seat side space and the rear seat side space by reducing the ratio of exiting to the seat side space.
[0006]
SUMMARY OF THE INVENTION In order to achieve the above object, according to the first to third aspects of the present invention, wind is blown from the center blower outlet and the side blower outlet to the front seat side space of the automobile and blown out to the front seat side space. In an automotive air conditioner configured to blow wind from the rear seat side outlet to the rear seat side space of the automobile independently of the wind, the wind speed of the blown air from the center outlet is blown from the side outlet. It is characterized by being smaller than the wind speed of the wind.
[0007]
According to this, since the wind speed of the blowing air from the center outlet is lower than the wind speed of the blowing air from the side outlet, of the blowing air blown from the center outlet, the driver seat and the passenger seat The rate of passing through the space to the rear seat side space is reduced. That is, most of the air blowing from the center air outlet is blown into the front seat space.
[0008]
Therefore, most of the air blowing from the center air outlet and the air blowing from the side air outlet that has a small ratio of going out to the rear seat side space are mostly blown out to the front seat side space. Further, as a result, most of the blowing air to the rear seat side space is caused by the blowing air from the rear seat side outlet.
As described above, according to the present invention, the ratio of the blowout air blown out from the center air outlet to the rear seat side space is reduced, so that each blowout air to the front seat side space and the rear seat side space can be accurately obtained. Can be adjusted independently.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a diagram schematically showing the overall structure of the ventilation system in the present embodiment. In FIG. 1, a branch box 18 described later and ducts connected to the branch box 18 are connected. It is shown without distinction. 2 is a view showing a state in which the branch box 18 is connected to the air conditioning unit 1, and is a view seen from the direction of arrow A in FIG.
[0010]
Further, FIG. 3 is a diagram illustrating only the doors 10 to 13 in order to show the arrangement state of the doors 10 to 13 described later, and the illustration of the air conditioning case 2 and other configurations is omitted. . FIG. 4 is a front view showing the overall configuration of the instrument panel 26.
What is surrounded by the one-dot chain line in FIG. An air intake port 3 and an external air intake port 4 are formed on one end side of the air conditioning case 2 of the air conditioning unit 1, and the intake ports 3 and 4 are selectively opened and closed in the air conditioning case 2. An inside / outside air switching door 5 is provided.
[0011]
In addition, a fan 6 for generating an air flow is provided in the air conditioning case 2. Further, an evaporator 7 as an air cooling means and a heater core as an air heating means are provided on the downstream side of the fan 6. 8 is provided. A face opening, a foot opening, and a defroster opening (not shown) are formed at the air downstream end of the air conditioning case 2.
[0012]
A partition plate 9 (see FIG. 2) that divides the internal space of the air-conditioning case 2 into two is provided in the air-conditioning case 2 at the downstream side of the heater core 8. Independent spaces are formed on the back side and the front side of FIG. A front-seat air mix door 10 and a front-seat blowout mode door 11 are provided in the space on the back side of the paper, and a rear-seat air mix door 12 and a rear-seat blowout are provided in the space on the front side of the paper. A mode door 13 is provided. The partition plate 9 also divides the face opening, the foot opening, and the defroster opening into two parts.
[0013]
The front seat air mix door 10 is a door for adjusting the temperature of the air blown into the front seat side space in the vehicle interior, and the front seat blow mode door 11 is a door for switching the front seat side blow mode. is there. The rear seat air mix door 12 is a door for adjusting the temperature of air blown into the rear seat side space of the vehicle interior, and the rear seat blow mode door 13 is for switching the rear seat side blow mode. It is a door.
[0014]
Each of these doors 10 to 13 is a film-like door made of a flexible film-like member (for example, PPS or nylon), and has an opening 14 through which air passes, as shown in FIG. ing. And both ends of each door 10-13 are wound around the shaft 15 rotatably supported by the air-conditioning case 2 and the partition plate 9, and this shaft 15 is rotated in both forward and reverse directions by a driving means (not shown). By doing so, each door 10-13 can be moved in both forward and reverse directions.
[0015]
In the present embodiment, each of the driving means is provided corresponding to each of the doors 10 to 13, and the driving means can be driven independently by a control device (not shown). . As a result, the temperature and mode of blowing air to the front seat side space, and the temperature and mode of blowing air to the rear seat side space can be controlled independently.
[0016]
And, to the entire defroster opening (not shown) formed at the air downstream end of the air conditioning case 2, up to the defroster outlet 16 for blowing the air that has passed through the defroster opening toward the inner surface of the windshield. A leading defroster duct 17 is connected. A branch box 18 (see FIG. 2) is connected to the entire face opening and foot opening (not shown).
[0017]
Inside the branch box 18, the air that has passed through the back side of the drawing sheet (the right side of FIG. 2) of the face opening portion of FIG. Of the air passage leading to the face outlet 20, the front left seat center face outlet 21, and the front left seat side face outlet 22, and the face opening, the front side of FIG. ), And an air passage that guides the air that has passed through the rear seat face outlet 23 to the rear seat.
[0018]
Further, in the branch box 18, the air that has passed through the back side of the drawing (the right side in FIG. 2) from the partition plate 9 out of the foot opening is transferred to the front right seat foot outlet 24 and the front left seat foot. An air passage that leads to the outlet 25, and an air passage that guides air that has passed through the front side of FIG. 1 (left side in FIG. 2) of the foot opening to the rear seat side foot outlet (not shown). Is formed.
[0019]
The front right seat center face outlet 19 has air before passing through the outlet 19 to a front right seat center face outlet 27 formed in the center of the instrument panel 26 (see FIG. 4). A right seat center face duct 28 is connected to the front right seat side face outlet 20, and the air passing through the outlet 20 is passed through the front right seat side face outlet 29 formed on the right side of the instrument panel 26. A front right seat side face duct 30 is connected to the front right seat.
[0020]
In addition, the front left seat center face outlet 21 is provided with air before passing through the outlet 21 to the front left seat center face outlet 31 formed at the center of the instrument panel 26 (see FIG. 4). A left seat center face duct 32 is connected to the front left seat side face outlet 22 and the front left seat side face outlet 33 formed on the left side of the instrument panel 26 is air that has passed through the outlet 22. A front left seat side face duct 34 is connected to the front left seat.
[0021]
In the present embodiment, the opening areas of the air outlets 27, 29, 31, and 33 are all formed to be the same.
The rear seat face outlet 23 guides the air that has passed through the outlet 23 to a rear seat face outlet 35 formed in a portion of the console box facing the rear seat. A duct 36 is connected.
[0022]
The front right seat foot outlet 24 is connected to a front right seat foot duct 38 that guides air passing through the outlet 24 to a front right seat foot outlet 37 formed at the front right seat foot. A front left seat foot duct 40 is connected to the left seat foot outlet 25 to guide the air that has passed through the outlet 25 to a front left seat foot outlet 39 formed at the front left seat foot.
[0023]
In addition, the rear seat foot outlet (not shown) allows the air that has passed through the outlet to flow into the rear right seat foot outlet 41 formed at the rear right seat foot and the rear left seat formed at the rear left seat foot. A rear seat foot duct 43 leading to the foot outlet 42 is connected.
And the said front right seat center face outlet 19 and the front left seat center face outlet 21 are provided with the plate-shaped member member 44 (refer FIG. 2) in order to make the opening area of these outlets small. Yes.
[0024]
In the automotive air conditioner configured as described above, both the front and rear seats are in face mode (mode that blows air-conditioned air toward the upper body of the occupant) or bi-level mode (air-conditioning air is directed toward the upper and lower body of the occupant When the fan 6 is rotated so that the total amount of air blown into the passenger compartment is 480 (m ³ / h), the front right seat center face outlet 27, the front right seat side face outlet 29, The ratio of each blown air volume from the front left seat center face outlet 31, the front left seat side face outlet 33, and the rear seat side face outlet 35 is 13 (%): 22 (%): 13 (%): 22 (%): 30 (%).
[0025]
Thus, by providing the front right seat center face outlet 19 and the front left seat center face outlet 21 with the plate-like member 44 for reducing the opening area of these outlets 19, 21, the center face is provided. The amount of air blown from the air outlets 27 and 31 is reduced by 9 (%) than the amount of air blown from the side face air outlets 29 and 33.
[0026]
Here, since each opening area of each blower outlet 27, 29, 31, 33 is the same, the amount of blown air from the center face blower outlets 27, 31 is as described above from the side face blower outlets 29, 33. Reducing from the amount of blown air means that the wind speed of the blown air from the center face air outlets 27 and 31 is smaller than the air velocity of the air blown from the side face air outlets 29 and 33.
[0027]
As described above, the wind speed of the blown air from the center face air outlets 27 and 31 is smaller than the wind speed of the air blown from the side face air outlets 29 and 33, thereby blowing out the air from the center face air outlets 27 and 31. Of the blown air blown, the ratio of passing through between the driver seat and the passenger seat to the rear seat side space is reduced. That is, most of the blowing air from the center outlets 27 and 31 is blown into the front seat space.
[0028]
Therefore, most of the air blowing from the center face air outlets 27 and 31 and the air blowing from the side face air outlets 29 and 33 that have a small ratio of going out to the rear seat side space are mostly blown out to the front seat side space. It will be. In addition, the air blown into the rear seat side space is mostly due to the air blown from the rear seat face outlet 35.
[0029]
As described above, in the present embodiment, since the ratio of the blowout air blown out from the center face air outlets 27 and 31 to the rear seat side space is reduced, each blowout to the front seat side space and the rear seat side space is performed. The wind can be adjusted accurately and independently.
In the present embodiment, as a method of reducing the opening area of each of the outlets 19 and 21, the plate-like member 44, which is a separate member from the outlets 19 and 21, is provided. By arbitrarily selecting the size of 44, the wind speed of the blown air from the front right seat center face air outlet 27 and the front left seat center face air outlet 31 can be freely set.
[0030]
Therefore, the air speed of the air blown from the center face air outlets 27 and 31 is changed to the side face for all the vehicles only by changing the plate-like member 44 while making the air conditioning unit 2, the branch box 18, each duct, etc. common. It can be made smaller than the wind speed of the blown air from the blowout ports 29 and 33.
In the present embodiment, the plate-like member 44 is provided at each of the outlets 19, 21, that is, at the connection portion between the front right seat center face duct 28 and the front left seat center face duct 32 and the branch box 18. Therefore, the plate-like member 44 can be easily provided.
[0031]
(Other embodiments)
The opening area of the center face outlets 27 and 31 may be larger than the opening area of the side face outlets 29 and 33. Also in this case, the wind speed of the blowing air from the center face air outlets 27 and 31 is smaller than the wind speed of the air blowing from the side face air outlets 29 and 33. Of course, in this case, the plate-like member 44 may or may not be provided.
[0032]
Moreover, the area in the middle of the passage of each center face duct 28, 32 is reduced, and the wind speed of the blown air from the center face air outlets 27, 31 is made smaller than the wind speed of the air blown from the side face air outlets 29, 33. You may make it become.
In addition, instead of simply reducing the opening area of each of the outlets 19 and 21, the amount of the reduced opening area of each of the outlets 19 and 21 is transferred to other outlets (for example, the outlets 20 and 22). It may be used as a passage. In this case, it is possible to suppress a decrease in the air volume as compared with a case where the opening area of each of the outlets 19 and 21 is simply reduced.
[Brief description of the drawings]
FIG. 1 is a diagram schematically showing the overall configuration of a ventilation system in an embodiment of the present invention.
FIG. 2 is a diagram showing a state in which a branch box 18 is connected to the air conditioning unit 1 in the embodiment.
FIG. 3 is a perspective view showing an arrangement state of doors 10 to 13 in the embodiment.
FIG. 4 is a front view of an instrument panel 26 in the embodiment.
[Explanation of symbols]
1 ... air-conditioning unit, 6 ... fan (air blowing means),
18 ... Branch box (first front seat side air passage, second front seat side air passage, rear seat side air passage),
19 ... Front right seat center face exit, 20 ... Front right seat side face exit,
21 ... Front left seat center face exit, 22 ... Front left seat side face exit,
23 ... Rear-seat face outlet, 26 ... Instrument panel,
27 ... Front right seat center face outlet (center outlet),
28 ... Front right seat center face duct (first front seat side air passage),
29 ... Front right side face outlet (side outlet),
30 ... Front right seat side face duct (second front seat side air passage),
31 ... Front left seat center face outlet (center outlet),
32. Front left seat center face duct (first front seat side air passage),
33 ... Front left seat side face outlet (side outlet),
34: Front left seat side face duct (second front seat air passage),
35: Rear seat face outlet (rear seat outlet),
36: Rear seat side face duct (rear seat side air passage).

Claims (3)

The blown air generated by the air blowing means (6) provided in the air conditioning unit (1) is passed through the first front seat air passages (18, 28, 32) connected to the air conditioning unit (1). The second front seat side air connected to the air conditioning unit (1) and blown out from the center outlet (27, 31) formed in the center of the instrument panel (26) on the front seat side of the automobile to the front seat side space. Blow out from the side air outlets (29, 33) formed on both sides of the instrument panel (26) to the front seat side space via the passages (18, 30 , 3 4 ),
A rear seat formed on the rear seat side of the automobile through the rear seat side air passages (18, 36) with the air blown from the air conditioning unit (1) independently of the air blowing to the front seat side space In the automotive air conditioner configured to blow out from the side outlet (35) to the rear seat side space,
Since the ventilation resistance of the first front seat air passage (18, 28, 32) is larger than the ventilation resistance of the second front seat air passage (18, 30, 34), the center outlet (27 , 31) The air conditioner for automobiles is configured so that the wind speed of the blown air from the side air outlets (29, 33) is smaller than that of the blown air from the side air outlets (29, 33). The blown air generated by the air blowing means (6) provided in the air conditioning unit (1) is passed through the first front seat air passages (18, 28, 32) connected to the air conditioning unit (1). The second front seat side air connected to the air conditioning unit (1) and blown out from the center outlet (27, 31) formed in the center of the instrument panel (26) on the front seat side of the automobile to the front seat side space. Blow out from the side air outlets (29, 33) formed on both sides of the instrument panel (26) to the front seat side space through the passages (18, 30, 34),
A rear seat formed on the rear seat side of the automobile through the rear seat side air passages (18, 36) with the air blown from the air conditioning unit (1) independently of the air blowing to the front seat side space In the automotive air conditioner configured to blow out from the side outlet (35) to the rear seat side space,
Since the opening area of the center outlet (27, 31) is larger than the opening area of the side outlet (29, 33), the wind speed of the blowing air from the center outlet (27, 31) is side outlet (29, 33) an automotive air conditioner you characterized in that it is configured to be smaller than the velocity of air blown from. The center air outlet (27, 33) and the side air outlet (29, 33) are a center face air outlet (27, 31) and a side face air outlet (29, 33) for blowing wind toward the upper body of the front seat occupant. ) And
The air conditioner for an automobile according to claim 1 or 2, wherein the rear seat side outlet (35) is a rear seat face outlet (35) for blowing wind toward the upper body of the rear seat occupant.

Images