JPS63305017A - Air conditioning device for vehicle - Google Patents

Abstract

PURPOSE:To simplify constitution, by a method wherein, in an air conditioning device to control the temperatures of a driver's seat and an assistant seat independently from each other, right and left air passages are formed in a manner to commonly use the drive source of a blower and heat exchangers for cooling and heating, and an air distributing chamber, a bypass passage, and an air distributing door are disposed at each air passage. CONSTITUTION:Two air passages 3a and 3b on both sides are formed in a case 1 of an air conditioning device, and blowers 10a and 10b, commonly using a drive source 11, are disposed in the respective air passages. A heat exchanger 12 for cooling and a heat exchanger 13 for heating are situated in series, in order, in the downstream side thereof. Bypass passages 16a and 16b having bypass doors 18a and 18b are formed above the heat exchanger 13 for heating, and are connected to air distributing chambers 17a and 17b formed facing the air passages 3a and 3b, respectively. Upper discharge ports 20, defrost discharge ports 19, and foot discharge ports 21a and 21b, each of which has a door, are formed in the air distributing chambers 17a and 17b, respectively. This constitution enables simplification of constitution.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an air conditioner installed in an automobile, and particularly to an air conditioner that independently controls the temperature of the driver's seat side and the passenger seat side.

(Prior Art) Conventionally, this type of air conditioner has been proposed, for example, by the present applicant (Utility Application No. 185873/1982).

Its outline is shown in Figs. 3 and 4.

There are two air passages 3a in front of the air distribution room 17.

3b is formed, and each air passage 3a
, a blower 10 whose rotation can be controlled independently on the upstream side of 3b.
a and 10b, and a cooling heat exchanger 1 is placed on the downstream side.
2 and a heating heat exchanger 13a.

13b are arranged in series to form a full reheat type structure. The cooling heat exchanger 12 is common to both air passages 3a and 3b, whereas the heating heat exchangers 13a and 13b are arranged for each air passage and independently adjust the amount of hot water. It is now possible to do so. As a result, the blower 10a.

The rotation of the heat exchanger 10b and the flow rates of the heat exchangers 13a and 13b are controlled separately for the left and right sides, so that the left and right sides of the vehicle interior can be air-conditioned separately.

(Problems to be Solved by the Invention) However, in the above-mentioned air conditioner, in order to control the temperature, a blower and a heating heat exchanger that can be operated independently for each air passage are required, and piping is required.

This has the disadvantage that the wiring becomes complicated and it is difficult to reduce costs. Moreover, since it is a full reheat type, it is not possible to control the temperature at the top and bottom of the air passage, which makes it difficult to achieve air conditioning that keeps your head cold and your feet warm, especially when in pie level mode.

Therefore, this invention was made to eliminate the above-mentioned drawbacks, and the cost can be reduced by simplifying the structure, and the temperature can be controlled independently not only on the left and right sides but also on the top and bottom of the vehicle interior. Our goal is to provide air conditioning equipment for

(Means for Solving the Problems) Therefore, the gist of the present invention is to provide a blower having a common driving source for the air passages formed on the left and right sides, and to provide both air passages on the downstream side of the blower. A common cooling heat exchanger and a heating heat exchanger are arranged in series, and a ventilation chamber is formed for each air passage on the downstream side, and each air passage has a heat exchanger for heating. A bypass passage is formed above the container, and a bypass door is independently arranged in each bypass passage, and each of the air distribution chambers is provided with air passing through the heating heat exchanger. It has an independent wind door that distributes it to the top and bottom of the air.

(Function) Therefore, if each bypass door and air distribution door are operated independently, the left and right air passages can control the amount of air passing through the bypass passage and the vertical distribution of the air that has passed through the heating heat exchanger. This means that even though the blower drive source, heat exchanger, etc. are common, the upper and lower temperatures of each air distribution room can be adjusted separately.
Therefore, the above-mentioned problem can be achieved.

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

In FIGS. 1 and 2, the air conditioner is divided into two parts on the upstream side of the case 1, and the integral part at the rear is separated by a partition plate 2 with the center as the border.
There are two air passages 3a on the left and right inside.

3b is formed.

A blower storage chamber 4a is provided on the upstream side of the air passages 3a and 3b, that is, in the portion where the case 1 is divided into two parts.

4b is formed, and each blower storage chamber 4a is
, 4b are formed with intake portions 6a, 6b communicating with each other via bell mouths 5a, 5b. The intake portions 6a and 6b have internal air introduction lower a.

Inside and outside air switching doors 9a and 9b are arranged to switch between the air intake ports 7b and the outside air introduction ports 8a and 8b, and the blower storage chamber 4a.

4b is a blower 10a made of a sirocco fan or the like.

10b is housed connected to a common drive source 11 consisting of, for example, a motor.

In the integrated part at the rear of case 1.

A common cooling heat exchanger 12 and a heating heat exchanger 13 are arranged in series in this order in the rain air passages 3a and 3b via the partition plate 2. A heat medium is supplied to the heating heat exchanger 13 through a pipe 14 drawn out to the outside, and the flow rate of this heat medium is regulated by a flow control valve 15 provided in the pipe. . In addition, bypass passages 16a and 16b are formed above the heating heat exchanger 13 and between the case 1 and the air passing through the cooling heat exchanger 12 to the heating heat exchanger 13 or the bypass passage. 16, and are sent to air distribution chambers 17a, 17b formed on the rearmost side of the respective air passages 3a, 3b. The amount of air passing through the bypass passages 16a, 16b is controlled by bypass doors 18a, 18b provided for each air passage.

Each of the air distribution chambers 17a and 17b includes a defrost outlet 19 formed on the top surface of the case 1, an upper outlet 20 formed in the upper part of the front surface, and foot outlets 21a and 21b formed in the lower part of both sides. The defrost outlet 19 and the upper outlet 20 are connected to a defrost door 22 and a vent door 23 for controlling the opening and closing of the respective openings, and the foot outlets 21a and 21b are provided with a vent door 23 to adjust the opening degree of the openings. A foot door 24 is provided supported by the case 1, respectively.

Differential door 22. The vent door 23 is arranged through the partition plate 2, and is common to both air passages 3a and 3b. On the other hand, the foot doors 24a and 24b are arranged separately on the left and right behind the heating heat exchanger 13,
Fully open position I that abuts the guide piece 25 extending from the upper end of the heating heat exchanger 13 and divides the air distribution chambers 17a and 17b into upper and lower sections! The foot air outlet 21a comes into contact with the guide piece 26 extending from the lower part of the case 1 (the position shown by the solid line in FIG. 2).

21b to the closed position (the position shown by the two-dot chain line in FIG. 2), and distributes the air that has passed through the heating heat exchanger 13 to the upper and lower portions of the air distribution chambers 17a and 17b. It functions as a wind door.

Therefore, when the blowers 10a and 10b rotate, the air inside the car or the air outside the car selected by the inside and outside air switching doors 9a and 9b is sucked in separately, and then passes through the air passages 3a and 3b to the cooling heat exchanger without mixing. 12 and a heating heat exchanger 13 or bypass passages 16a, 16b to reach the air distribution chambers 17a, 17b, and the air passage 3a on the right side via the air outlet 19, 20° 21a, 21b selected depending on the mode. The air passing through is from the right side to the air passage 3b on the left side.
The air passing through the vehicle is blown out from the left side into the vehicle interior.

In the above configuration, bypass doors 18a, 18b and foot doors 24a, 24 arranged in each air passage 3a, 3b
Since the air passages b and b can be operated independently from those of the other air passage, various usage conditions as shown in Table 1-1 can be realized.

Table 1 First, in the vent mode, the vent door 23 is opened and the differential door 22 is closed.

3b's foot doors 24a, 24b are placed in the closed position.

In this state, for example, if you want to set the right side of the vehicle to MAX vent and the left side to temperature control mode, use the right bypass door 18.
A is fully opened and the left side bypass door 18b is closed. This allows the air that has passed through the cooling heat exchanger 12 to pass through the heating heat exchanger 13 and the bypass passage 16 on the right side.
After that, all of the air is sent to the upper air outlet 20. On the other hand, on the left side, heat exchanger 1 for cooling
All the air that has passed through 2 enters the heating heat exchanger 13,
After the temperature is suitably adjusted in this heating heat exchanger 13, it is sent to the upper outlet 20.

In pie level mode, the vent door 23 is opened, the differential door 22 is closed, and the foot doors 24a, 24b are opened to adjust the opening degrees of the foot air outlets 21a, 21b. In this case, the bypass door 18a.

The positions of the foot door 18b and the foot doors 24a and 24b can be set arbitrarily.
A part of the air that has passed through is guided to the foot doors 24a and 24b, and then the foot air outlet 21a.

21b, and the rest is guided above the air distribution room and sent to the upper air outlet 20 together with the air that has passed through the bypass passages 16a, 16b depending on the positions of the bypass doors 18a, 18b. As a result, each air passage 3a, 3b
Bypass doors 18a, 18b and foot door 24
a, 24b as appropriate, the ventilation chambers 17a, 17b
The temperature control of the air sent upward and the temperature control of the air sent downward can be performed separately in the left and right air passages 3a and 3b.

In heater mode, bypass door 18a.

18b, the vent door 23 and the differential door 22 are closed, and the foot doors 24a and 24b are placed in the fully open position. in this case,
Blower loa, drive source 11 of 10b and heat exchanger 12.1
3 are common, it is not possible to perform independent temperature control for the left and right sides, but if you wish to perform independent temperature control, you can move the bypass doors 18a, 18b and the foot doors 24a, 24b as appropriate.

In the differential heat mode, the differential door 22 and foot doors 24a and 24b are opened, and the vent door 23 is closed. In this case, the bypass doors 18a, 18b and the foot doors 24a, 24b may be set at arbitrary positions.

Then, the air heated by the heating heat exchanger 13 reaches the foot door 24a.

24b, a part of which is distributed by the defrost outlet 19
The remaining air is sent to the foot air outlet 21a.

21b, and further the air that has passed through the bypass passages 16a, 16b according to their opening degrees is sent to the defrost outlet 19. Therefore, even in this mode, the temperature control above and below the air distribution chambers 17a, 17b can be performed individually using the left and right air passages 3a, 3b.

In the defrost mode, the bypass doors 18a, 1
8b, the vent door 23 and the foot doors 24a, 24b should be closed, and the differential door 22 should be opened. In this case as well, as in the heater mode, it is not possible to normally control the temperature independently on the left and right sides, but if you dare to do so, the bypass doors 18a, 18
Just move b.

Note that a new door may be provided as a wind door in addition to the foot doors 24a and 24b, but in order to simplify the structure, the foot door 24 as in this embodiment may be used.
It is desirable that it be shared with a and 24b.

Further, in this embodiment, the case where the defrost door 22 and the vent door 23 are arranged separately is shown, but the same effect can be obtained even if the defrost outlet 19 and the upper outlet 2o are switched with one door. It is something.

(Effects of the Invention) As described above, according to the present invention, even though the blower drive source, heat exchanger, etc. are common, the bypass door and the foot door can be operated independently. Temperature conditions above and below the room can be controlled for each air passage,
It is possible to independently control the temperature not only on the left and right sides of the vehicle interior, but also on the top and bottom. Furthermore, since the drive source, heat exchanger, etc. are common, the structure can be simplified and costs can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a plan sectional view showing an embodiment of the present invention, Fig. 2 is a side sectional view of the same, Fig. 3 is a plan sectional view showing the conventional technique, and Fig. 4 is a side sectional view of the same. . 3a, 3b...air passage, 10a, 10b...blower, 11...drive source, 12...heat exchanger for cooling. 13... Heat exchanger for heating, 16a, 16b... Bypass passage, 17a, 17b"/ventilation chamber, 18a. 18b... Bypass door. Patent applicant: Diesel Kiki Co., Ltd. Figure 1, Figure 2 figure

Claims (2)

[Claims] 1. A blower having a common driving source is provided in the left and right air passages, and a cooling heat exchanger and a heating heat exchanger common to both air passages are arranged in series on the downstream side of the blower. , an air distribution chamber is formed for each air passage on the downstream side, and a bypass passage that bypasses the upper part of the heating heat exchanger is formed in each air passage, and a bypass door is provided independently in each bypass passage. for a vehicle, wherein each of the air distribution chambers has an independent air distribution door that distributes air passing through the heating heat exchanger to upper and lower portions of the air distribution chamber. Air conditioner. 2. 2. The vehicle air conditioner according to claim 1, wherein the wind door is a foot door that adjusts the opening degree of the foot air outlet.