JPH0357530Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an improvement of an air mix type air conditioner for an automobile.

(Prior Art) Air mix type automobile air conditioners have been known, for example, as disclosed in Japanese Utility Model Application Publication No. 57-133408. This conventional air mix type automobile air conditioner has an evaporator installed in the middle of the air passage leading to the air intake, and a heater core downstream of the evaporator, which adjusts the proportion of air flowing through the heater core. A damper is provided, and the air passage on the downstream side of the heater core is used as an air mix zone, which separates hot air blown through the heater core and cold air blown avoiding the heater core. The air mix zone has a configuration that allows air mixing, and the air mix zone has a cold air duct as a cold air passage for guiding the cold air indoors, and a hot air duct as a hot air passage for guiding warm air indoors; It is said that the structure is similar to that of The air mix zone is provided with an opening/closing door that faces each duct and opens/closes each duct, and each opening/closing door can be switched to the desired mode of use depending on the mode of use of the air conditioner. It is designed to be able to be operated in a manner that allows it to be used either to blow only cold air into the room via the cold air duct, or to mix cold air and warm air into the room. .

By the way, the air mix zone is necessary when performing air mix, but is not required when used in a manner other than air mix. Since the entire volume of the air mix zone is configured as a ventilation area regardless of whether or not there is an air mix, this air mix zone becomes a ventilation resistance area when the air mix is used in a manner other than air mix. As a result, there was a problem in that it was difficult to increase the air blowing efficiency when used in modes other than air mixing.

To deal with this problem, from the viewpoint of increasing air blowing efficiency in usage modes other than air mixing, it is desirable to reduce the air blowing area in the air mixing zone to reduce air blowing resistance, and at the same time, during air mixing, it is desirable to reduce the air blowing resistance. From the viewpoint of improving air mixing properties, it is desirable to have a configuration in which the hot air is guided toward the hot air.

(Purpose of the invention) The present invention has been made from the above-mentioned viewpoints, and it is possible to improve the air blowing efficiency when the air is used in a manner other than air mix, and to improve the air mix performance when the air mix is used. Our goal is to provide a harmonizing device.

(Structure of the invention) In the present invention, there is basically no need to send warm air into the cold air passageway that guides cold air into the room.In other words, there is no need to guide the warm air that has been air mixed on the downstream side of the heater core to the cold air passageway. It is based on the idea that there is no

That is, a damper is provided on the front surface of a heater core disposed inside the case to adjust the proportion of air passing through the heater core, and the air passage downstream of the heater core in the case blows air through the heater core. The air mixing zone is defined as an air mixing zone that mixes hot air that is flown into the room and cold air that is blown while avoiding the heater core, and the air mixing zone includes a cold air passage that leads the cold air into the room, and a cold air passage that leads the warm air into the room. An air mix type automobile air conditioner is configured to be connected to a hot air passage leading to the cold air, and the air mix zone is provided with a partition plate, and the air mix zone is configured to lead to the cold air. It is partitioned into two rooms: a cold air zone that communicates with the passageway and a hot air zone that communicates with the hot air passage, and a cold air zone that closes the cold air zone at the upstream end of the partition plate, using the upstream end as a rotational fulcrum. a closing plate; and a warm air zone closing plate that closes the warm air zone; a substantially L-shaped opening/closing door that selectively opens and closes the cold air zone and the hot air zone; The closing plate constitutes a partition wall that partitions a space between the upstream end of the partition plate and the heater core when the warm air zone is closed by the hot air zone closing plate, and the closing plate forms a partition wall that partitions a space between the upstream end of the partition plate and the heater core, and connects both the cold air zone and the hot air zone. When in the open intermediate state, the hot air zone closing plate is inclined from the upstream side to the downstream side toward the hot air zone side, and the hot air zone closing plate is formed to be shorter than the cold air zone closing plate. When the cold air zone is closed by the cold air zone closing plate, a partition wall is formed with a gap between the upstream end of the partition plate and the heater core, and the cold air zone and the hot air zone are both open. , it is configured such that it is inclined from the upstream side to the downstream side toward the cold air zone side.

(Embodiment) An embodiment of the automobile equipment harmonization device according to the present invention will be described below.

In FIGS. 1 to 3, 1 is a case, and this case 1 includes case components 2, 3,
It consists of 4. Case component 2 includes
An air intake port 5 is provided, and the air intake port 5 is composed of an inside air intake port 6 and an outside air intake port 7. The case components 2, 3, and 4 are sequentially joined via packings 8 and 9 to form an air passage. The air intake port 5 has this air intake port 5.
An opening/closing door 10 for opening and closing the inside air intake port 6 and the outside air intake port 7 is provided facing the room. This opening/closing door 10 is rotatable, and 10a indicates its pivot point. The case component 2 includes an electric fan 11 and a motor 12 for driving the electric fan.
Air is taken into the case 1 by driving the electric fan 11. The opening/closing door 10 is operated by a lever (not shown) provided at the front of the vehicle, and is used to close the inside air intake 6 and open the outside air intake 7 when ventilating the room. When performing indoor circulation, the outside air intake port 7 is closed and the inside air intake port 6 is opened. Note that in FIG. 1, arrow A indicates a state in which internal air is taken in.

The case component 3 is provided with an evaporator 13 therein. This evaporator 13
has the function of dehumidifying and drying the air taken in from the air intake port 5, and also has the function of cooling the air. Here, all of the air taken in is blown to the downstream side of the evaporator 13 via the evaporator 13. A heater core 14 is provided downstream of the evaporator 13 . Here, the heater core 14 is installed inside the case component 4, and is configured such that at least a portion of the air that has been dehumidified, dried and cooled by the evaporator 13 can avoid the heater core 14. It is said that The case component 4 is provided with a rotating door 15 immediately upstream of the heater core 14. As shown in FIG.
When the rotary door 15 is positioned directly on the heater core 14, a part of the air is blown toward the downstream side of the heater core 14 as cold air, avoiding the heater core 14, as shown in FIG. If it is located on the upstream side, all of the air avoids the heater core 14 and is blown toward the downstream side of the heater core 14 as cold air, and at least a part of the cooled air avoids the heater core 14. As shown in FIG. 2, when the rotating plate 15 is positioned farthest from the immediately upstream surface of the heater core 14, all of the air taken in is guided toward the heater core 14. The hot air is blown to the downstream side of the heater core 14 via the heater core 14. In FIG. 1, arrow B indicates the flow of air that avoids the heater core 14;
Arrow C indicates the flow of air via the heater core 14, and 15a indicates the pivot point of the pivot plate 15.

The case component 4 has an air mix zone 16 on the downstream side of the heater core 14, and this air mix zone 16 includes a cold air duct 17 as a cold air passage for guiding cold air into the room.
and a defroster duct 18 for guiding warm air to the windshield to defrost the windshield, and a warm air duct 19 as a hot air passage for guiding the warm air into the room is integrally formed. There is. Here, the cold air duct 17 is configured to lead to a ventro (not shown) and blows cold air from the front of the driver's seat toward the upper body of the passenger, and the hot air duct 19 is branched on the downstream side. Branch ducts 20, 21, and 22 are used, and here, the warm air guided to the branch ducts 20, 22 is
The hot air is blown out from the footwells of the front seats toward the interior of the room, and the warm air guided to the branch duct 21 is blown out toward the interior of the room from the footwells of the rear seats. The temperature of the warm air is adjusted by adjusting the opening of the rotating plate 15 during air mixing.The rotating plate 15 functions as a dynamic damper, and the opening of the rotating plate 15 is adjusted by adjusting the opening of the rotating plate 15 in front of the driver's seat. This is done by operating a lever (not shown) provided in the section.

The air mix zone 16 is divided into two rooms by a partition plate 23, and constitutes a cold air zone 24 and a hot air zone 25. The cold air zone 24 is configured to face the cold air area 26 and communicate with the cold air duct 1717, and the warm air zone 25 is configured to face the warm air area 27 and communicate with the defroster duct 18. The structure is such that it communicates with the hot air duct 19. This cold and warm air area 26,
27 is provided with an opening/closing door 28 that rotates between the cold and hot air areas 26 and 27, and 28a indicates the pivot point thereof. This opening/closing door 28
is composed of a cold air zone closing plate 29 that closes the cold air zone 24 and a hot air zone closing plate 30 that closes the hot air zone 25. This opening/closing door 28
has a function of guiding the cold air toward the immediate downstream side of the heater core 14 during air mixing of cold air and hot air, and the cold air zone closing plate 29 and the hot air zone closing plate 30 receive the cold air. In FIG. 1, arrow D indicates the flow of cold air, and arrow E indicates the flow of warm air. This opening/closing door 28
is operated by a lever (not shown) provided in front of the driver's seat, and as shown in FIG. Air mixing between cold air and hot air is performed when the air is in the middle position, and here the entire length of the cold air zone closing plate 29 is set so that the cold air can be guided towards the warm air as much as possible. It is configured to be longer than the entire length of the hot air zone closing plate 30.

The cold air zone 24 is provided with a rotating door 31 that can open and close the cold air duct 17.
a indicates its rotational fulcrum, and when this opening/closing door 31 is opened in the air mix state shown in FIG. When the opening/closing door 31 is opened in a state other than the air mix shown in FIG. It is done. The warm air zone 25 has a rotary opening/closing door 32.
is provided to be able to open and close the defroster duct 18, and a rotating opening/closing door 33 is provided to open and close the defroster duct 18.
9 is provided to be openable and closable, 32a indicates a pivot point of the opening/closing door 32, and 33a indicates a pivot point of the opening/closing door 33. Opening/closing door 32
The opening/closing door 33 is closed in the air mix state shown in FIG. 1 and in times other than the air mix state shown in FIG. This is done based on the opening degree, and the opening/closing doors 31 to 33
This operation is performed using a lever located in front of the driver's seat.

According to this air conditioner, when only cold air is sent toward the cold air duct 17, the warm air zone 25 is closed and the air mixing zone 16 is moved into the cold air zone, as shown in FIG. 16
During cooling, the air blowing resistance in the air mix zone 16 is reduced, and the air blowing effect is enhanced compared to when air mixing. When the zone 24 is closed, the air blowing area of the air mixing zone 16 is reduced and limited, and the air blowing resistance of the air mixing zone 16 is reduced during heating, and the air blowing efficiency is increased compared to when air mixing. Since the opening/closing door 28 guides the cold air immediately downstream of the heater core 14 to actively mix the cold air and warm air, it is expected that air mixing performance will be improved. The hot air mixed with the cold air immediately downstream of the heater core 14 is sufficiently mixed and homogenized while passing through the hot air zone 25, and then passes into the room through the defroster duct 18 or the hot air duct 19 as appropriate. You will be guided. Therefore, the temperature of the conditioned air can be controlled more accurately.

In the case of this embodiment, the rotating plate 15 also has the function of reducing and limiting the ventilation area of the air mix zone 16 in cooperation with the opening/closing door 28.

(Effects of the invention) As explained above, the present invention divides the air mix zone into two rooms, the cold air zone leading to the cold air passageway that leads cold air into the room, and the warm air passageway leading warm air into the room. Since a hot air zone is formed and an opening/closing door is provided that selectively opens and closes the hot air zone and the cold air zone, by closing either the hot air zone or the cold air zone. The air blowing area of the downstream air passage of the heater core is reduced and limited.
It is possible to reduce air blowing resistance. Therefore, there is an advantage that the air blowing efficiency can be increased when the air conditioner is used in a manner other than air mixing. In addition, during air mixing, the opening/closing door is shaped to guide cold air directly downstream of the heater core, so it is possible to actively improve the air mixing performance during air mixing, which makes it easier to control the temperature of the conditioned air. Can be done accurately.

Furthermore, since the hot air zone closing plate of the opening/closing door is formed to be shorter than the cold air zone closing plate, it is possible to meet air mix requirements even when the cold air zone is fully closed. Even in such a state, the opening/closing door has the function of guiding the cold air directly downstream of the heater core, so that air mixing performance can be improved.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram showing the state of the air conditioning system for an automobile according to the present invention during air mixing. FIG. 2 is a configuration diagram showing a heating state of the air conditioner for an automobile according to the present invention. FIG. 3 is a configuration diagram showing the state of the automobile air conditioner according to the present invention during cooling. 1...Case, 2-4...Case component, 1
4... Heater core, 15... Rotating plate (damper),
16...Air mix zone, 17...Cold air duct, 18...Defroster duct, 19...Warm air duct, 24...Cold air zone, 25...Warm air zone, 28...Opening/closing door, 29...Cold air Zone closing plate, 30...Hot air zone closing plate, D...Cold air, E
...warm air.

Claims (1)

[Claim for Utility Model Registration] A damper is provided on the front surface of the heater core disposed inside the case to adjust the proportion of airflow passing through the heater core, and the air passage downstream of the heater core in the case is configured to An air mixing zone that mixes warm air blown through the heater core and cold air blown avoiding the heater core, and the air mixing zone includes a cold air passageway that guides the cold air indoors; The air conditioning system for an air mixer type vehicle is configured to be connected to a hot air passage that guides the warm air into a room, and the air mix zone is provided with a partition plate, and the air mix zone is provided with a partition plate to guide the air mixer into the room. The air conditioning zone is divided into two rooms, a cold air zone communicating with the cold air passage and a hot air zone communicating with the hot air passage. A substantially L-shaped opening/closing device that is composed of a cold air zone closing plate that closes a cold air zone and a warm air zone closing plate that closes the warm air zone, and that selectively opens and closes the cold air zone and the hot air zone. a door is provided, the cold air zone closing plate constitutes a partition wall that partitions a space between the upstream end of the partition plate and the heater core when the hot air zone closing plate closes the hot air zone; When both the cold air zone and the hot air zone are in an intermediate state where they are open, the state is inclined from the upstream side to the downstream side and toward the hot air zone side, and the hot air zone closing plate is closed to the cold air zone. The partition wall is formed to be shorter than the closing plate, and has a gap between the upstream end of the partition plate and the heater core when the cold air zone is closed by the cold air zone closing plate, and forms a partition wall. and the warm air zone are both open, the air conditioner is inclined from the upstream side to the downstream side toward the cold air zone side.