JPS6244803Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention mixes outside air taken in as running wind as the car travels with outside air or inside air as forced air sent through a heater or cooler by operating a damper. This invention relates to an air conditioner for an automobile that blows air into the passenger compartment.

As shown in FIG. 6, a required number of air outlet portions 33, 34, and 35 are provided at appropriate locations on the front panel 31 of the automobile driver's seat and the side wall 32 of the vehicle interior, as required. Among these, for example, from the air outlet section 33 to which the side ventilator is attached, traveling wind, forced wind that has passed through the air conditioning unit, and mixed wind that is a mixture of both are selectively blown out. . For this purpose, conventionally, as shown in FIG.
is connected to the air outlet portion 33, and a damper 39 is swingably provided at the gathering portion of the ducts 37, 36 to adjust the opening degree of the ducts 36, 37. (Jitsukai 55-
(See No. 125814). According to this, the damper 39 is
When the forced wind duct 37 is in the fully closed position S, the traveling wind duct 36 is fully opened, while when it is in the fully closed position _S1 with respect to the traveling wind duct 36, the forced wind duct 37 is fully opened and the above-mentioned blow From the outlet, only the running wind or only the forced wind is selectively blown into the vehicle interior. However, with such a device, it is not possible to adjust the amount of forced air alone. That is, the damper 39 is connected to the traveling wind duct 36.
When the forced wind duct 37 is in the fully closed position S, _S1 , both ducts 36, 37 are partially open, and by adjusting the opening of one, the other is also opened at the same time. This is because the temperature is adjusted. Therefore, when a passenger wants to adjust the amount of forced air only, it is not possible to meet the passenger's request.

This idea was made in view of the above circumstances, and allows for selective switching between traveling wind and forced wind, and adjustment of the blowout amount of only forced wind, just by operating a single damper, in the same way as in the past. The purpose of the present invention is to provide an air conditioner for an automobile that can be operated by That is, in this invention, a switching damper is provided at the meeting point of the traveling wind duct and the forced wind duct to alternately close and close them, and when this switching damper is located within a certain swing angle range, the traveling wind duct and forced wind duct are Although the wind duct is always fully closed, the forced wind duct is configured so that its opening degree can be adjusted.

Next, an embodiment of this invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a forced air duct, and an outside air inlet 2 that opens toward the outside of the vehicle interior and an inside air inlet 3 that opens toward the interior of the vehicle interior are formed at the base end of the duct. An air conditioning unit 4 consisting of a blower 4a and a cooler unit 4b or heater unit 4c is interposed in the air conditioning unit 4, and a center ventilator 5 is provided at the outlet of the air conditioning unit 4. This center ventilator 5 is attached with a damper 6 for adjusting air volume. On the other hand, 7 is a running wind duct, and an outside air inlet 8 that opens toward the outside of the vehicle interior is formed at its base end. These forced wind ducts 1 and traveling wind ducts 7 are assembled, and communicated with a collection duct 10 at a collection part 9. A side ventilator 12 is attached to the air outlet 11 at the end of the collective duct 10.

As clearly shown in FIG. 2, a switching damper 13 is provided in the gathering portion 9. This switching damper 1
3, whose middle part is pivotally supported by a pin 14, one blade part 13a facing the passage 7a of the forced wind duct 7, and the other blade part 13a facing the passage 7a of the forced wind duct 7.
3b faces the passage 1a of the forced air duct 1.
In this case, one blade portion 13a is extended to be longer than the passage width l of the traveling wind duct 7, and the extending end 13c of the blade portion 13a extends along the swing path A of the traveling wind duct 7. A bulging circular arc wall portion 15 is formed on one side wall, and the extending end 13c comes into sliding contact with the inner surface of this circular arc wall portion 15.

In the above, as shown in the imaginary line in FIG. 2 and in FIG.
5, the other blade part 13b
runs along the side wall of the forced air duct 1, so only the passage 1a of the forced air duct 1 is fully opened, and the passage 7a of the traveling wind duct 7 is completely closed. Therefore, only the forced air from the forced air duct 1 is sent into the collective duct 10, and this is fed into the air outlet 11.
It is blown out into the vehicle interior through the side ventilator 12. Next, as shown in the solid line in FIG. 2 and in FIG. 3b, one blade portion 1 of the switching damper 13 is
3a is set at the starting end of the arcuate wall portion 15, the other blade portion 13b is set to open the passage 1a of the forced air duct 1 approximately half way. Even in this state, since the extending end 13c of the one blade portion 13a is in contact with the arcuate wall portion 15, the passage 7a of the traveling wind duct 7 remains completely closed, and on the other hand, The passage 1a of the forced air duct 1 has a substantially half-open shape. Therefore, within the angle range θ where the extending end 13c of one of the blade portions 13a slides into contact with the arcuate wall portion 15, the forced air passage 1a is fully opened while the traveling air passage 7a is fully closed. It is possible to adjust the opening degree from the open position to a substantially half-open position, and only forced air with an amount corresponding to the opening degree is blown into the vehicle interior through the side ventilator 12 as shown by the arrow in FIG. Furthermore, as shown in the dashed line in FIG. 2 and in FIG. It will be in a fully closed state. In this state, only the running wind is blown into the vehicle interior from the side ventilator 12 via the running wind duct 7 and the collecting duct 10.

In the case shown in FIGS. 2 to 3c, the opening of the forced air passage 1a can be adjusted within a certain angle while the traveling air passage 7a is completely closed.
In addition to this, it is also possible to adjust the opening degree of the running air passage 7a while keeping the forced air passage 1a completely closed.

That is, as shown in FIG _.
The above purpose can be achieved by forming a bulging circular arc wall portion 16 on one side wall of the forced air duct 1 so as to extend the forced air duct 1 for a longer period of time and along the swing path B of the extended end 13d. can be achieved. According to the one in FIG. 4, by swinging the switching damper 13 in the forward or reverse direction, one of the traveling air passage 7a and the forced air passage 1a is kept fully closed, while the other is The opening degree can be adjusted within a certain angle.
In this case, one blade portion 13a of the switching damper 13
is set at the starting end of the arcuate wall portion 15 of the traveling wind duct 7, the other blade portion 13b
By positioning it at the starting end of the circular arc wall portion 16, both the travel wind and forced wind passages 7a and 1a can be completely closed. In addition, in FIG. 4, the imaginary line shows the case where the traveling wind passage 7a is fully closed by the switching damper 13 and the forced air passage 1a is fully opened, and in the same figure, the dashed line is A case is shown in which the traveling air passage 7a is fully opened by the switching damper 13, and the forced air passage 1a is fully closed.

FIG. 5 shows another embodiment. In this embodiment, the forced wind duct 17 and the running wind duct 1
A half-cylindrical switching damper 21 is rotatably supported around the center by a pin 20 at the gathering part 19 with the forced air duct 17, and this switching damper 21 comes into sliding contact with one side wall of the forced air duct 17. Swollen arc wall part 2
2 is formed.

According to such a device, by swinging one end 21a in the circumferential direction of the switching damper 21 within an angular range θ ₁ from the starting end to the ending end of the arcuate wall portion 22, the passage 18a of the traveling wind is opened. The forced air passage 17a can be adjusted from a half-open state to a fully open state while remaining fully closed. In addition, the switching damper 21
When the other end 21b in the circumferential direction matches the collective end of the forced air duct 17 to completely close the forced air passage 17a, the traveling air passage 18a becomes fully open. Furthermore, when the switching damper 21 is reversed 180 degrees from the illustrated state, the passage 23a of the collective duct 23 is completely closed.

In addition, in the case of FIG. 5, if the forced air duct 17 is also formed with a bulging arcuate wall portion 24 as shown by the imaginary line in the figure, it will be the same as that explained in FIG. 4. In this manner, the opening degree of the traveling wind passage 18a can be adjusted while the forced air passage 17a is kept fully closed.

In each of the embodiments described above, the range in which the opening degree of the forced air passages 1a, 17a can be adjusted while the traveling air passages 7a, 18a are completely closed is the length of the arc wall portions 15, 22. It is clear that the distance is determined by the size of the angular range θ, _θ1 in which the switching dampers 13, 21 and the circular arc walls 15, 22 make sliding contact.

As is clear from the above explanation, according to this invention, the switching damper that alternately controls the opening and closing of the traveling wind duct and the forced wind duct rotates while sliding in contact with the circular arc wall formed in the traveling wind duct. It is configured as follows,
When this switching damper is in the angular range where it makes sliding contact with the circular arc wall, the traveling wind duct is cut off and only the forced wind duct can be adjusted in opening, so that the traveling wind and the forced wind can be selectively supplied to the passenger compartment. Not only can it be introduced into the vehicle, but it also makes it possible to adjust the volume of forced air while cutting off the driving wind, which was previously considered impossible. Therefore, the amount of hot air or cold air discharged into the vehicle interior through the air conditioning unit can be adjusted as necessary, and the interior of the vehicle interior can always be maintained in a comfortable state.

[Brief explanation of the drawing]

FIG. 1 is a schematic sectional view showing an embodiment of this invention;
Figure 2 is an enlarged sectional view of the same gathering part, Figure 3a~
Fig. 3c is an explanatory diagram of the same operation, Fig. 4 is a sectional view of the same modification, Fig. 5 is an enlarged sectional view of another embodiment, Fig. 6 is a schematic diagram of the compartment, and Fig. 7 is a conventional example. It is an enlarged view of the main part. 1, 17... Forced wind duct, 1a, 17a...
Forced air passage, 2... Outside air introduction port, 3... Inside air introduction port, 4... Air conditioning unit, 7, 18... Traveling wind duct, 7a, 18a... Traveling wind passage, 8
...Outside air inlet, 9,19...Collection part, 10,2
3... Collection duct, 11... Air outlet, 13, 21
...Switching damper, 15, 22... Circular wall portion.

Claims (1)

[Scope of utility model registration request] An air conditioner that combines a traveling wind duct that takes in outside air and a forced wind duct that sends outside air or inside air through an air conditioning unit, and blows air from a common outlet provided on the side of the vehicle interior. A switching damper that alternately controls the opening and closing of both ducts is provided at the gathering part of the ducts. An air conditioner for an automobile, characterized in that when the angle is in sliding contact with the arcuate wall portion, the running air duct is shut off, and only the forced air duct can be adjusted in opening.