KR20010109988A - Case for receiving a heat exchanger of an air conditioner - Google Patents

Abstract

According to the present invention, a bypass passage is formed in a partition wall forming a floor passage, and a bypass door for opening and closing the bypass passage is installed in conjunction with a temper door, so that the bypass passage is opened in a cooling mode to heat exchange in an evaporator. It relates to a heat exchanger storage case of an air conditioner to allow air to be discharged to the floor outlet to improve the cooling performance in the interior of the vehicle, the heat exchanger storage case is placed in a predetermined position of the partition wall forming the floor flow path near the heater A bypass passage is opened and a bypass door for opening and closing the bypass passage is installed to be interlocked with the temporal door so that the bypass door is disposed between the partition wall and the heater rear when the temporal door seals the second passage. And seal the bypass passage when the temporal door closes the first passage. The.

Description

Case for receiving a heat exchanger of an air conditioner

The present invention relates to a duct apparatus for supplying air to a vehicle interior in a vehicle air conditioner, and in particular, a bypass passage for forming a bypass passage in a partition wall forming a floor passage and opening and closing the bypass passage. Installed in conjunction with the temp door, the bypass passage is opened in the cooling mode so that the cold air heat exchanged from the evaporator is discharged to the floor outlet, thereby improving the cooling performance in the cabin. It is about.

The air conditioner of a vehicle is provided with a heat exchanger for heat-exchanging the air supplied into the cabin on the path of the duct and accommodates a heat exchanger for controlling the air flow direction so that the heat-exchanged air from the heat exchanger can be discharged in various directions in the cabin. The case is installed.

The heat exchanger storage case of the air conditioner is installed in various shapes according to the vehicle, and FIG. 1 illustrates a heat exchanger storage case 1 which is generally applied.

The heat exchanger housing case (1) accommodates the evaporator (2) and the heater (3) therein, the air inlet portion 4 through the air inlet through the air inlet portion and the air outlet portion in communication with the air inlet (4) The defrost outlet 5, the vent outlet 6 and the floor outlet 7 are formed, and the first and second passages 8 and 9 are perforated at appropriate positions on the passage so that the first and second passages 10 are formed. (11) is formed, and the floor passage 13 divided by the partition wall 12 is formed at one side of the two passages 9.

Between the first and second passages (8) and (9), a temp door 14 for selectively opening and closing the first and second passages (8) and (9) is installed to supply air through the air inlet (4). The air flow is controlled according to the rotation angle while guiding the first and second passages (8) and (9), wherein the divided first and second passages (8) and (9) and the defrost outlet (5) and The vent outlet 6 communicates to form the first and second flow passages 10 and 11. In addition, a floor flow passage 13 is formed at one side of the second passage 9 by a partition wall 12 and is separated from the second flow path 11, and the floor flow passage 13 is a partition wall near the vent outlet 6. 12) The floor inlet 15 is formed at one side and opened and closed by the door 16, and the floor outlet 7 is formed at the other side of the partition wall.

In the heat exchanger storage case configured as described above, an evaporator 2 which is a heat exchanger is installed at the air inlet 4 side, and a heater 3 is installed at the rear of the second passage 9 to be used. When the 14 is in the cooling mode, the second passage 9 is sealed, and the air supplied through the air inlet 4 is heat-exchanged with the cold air in the evaporator 2 and then opened. It is supplied to the vehicle interior through the vent outlet 6 through the first passage 8 to cool the interior of the vehicle, and the temporal door 14 seals the first passage 8 in the heating mode. The supplied air is heat-exchanged to the warm air by the heater 3 while passing through the open second passage 9 and then supplied into the vehicle interior through the defrost outlet 5 and the floor flow passage 13. Will heat up.

However, since the heat exchanger storage case 1 of the conventional air conditioner is operated to seal the floor inlet 15 in the cooling mode when the door 16 for opening and closing the floor inlet 15 is operated in the evaporator 2 in the cooling mode. Since the heat exchanger cold air is not supplied to the floor flow path 13, the amount of cold air flowed into the interior of the vehicle is not large, and thus the cooling performance is not cooled down quickly, and thus the cooling performance is lowered. There is a disadvantage that can not provide an efficient cooling system because it does not cool the lower body.

Accordingly, the present invention is to solve the conventional defects as described above, the object is to form a bypass passage on the partition wall forming the floor passage and to install a bypass door for opening and closing the bypass passage in conjunction with the temp door The bypass passage is opened in the cooling mode so that the cold air heat exchanged in the evaporator is discharged to the floor outlet, thereby improving the cooling performance in the vehicle compartment.

The heat exchanger accommodating case has a bypass passage through a predetermined position of a partition wall forming a floor passage near the rear of the heater, and a bypass door for opening and closing the bypass passage is installed to interwork with the temporal door.

The bypass door seals between the partition wall and the heater rear when the temporal door seals the second passage, and closes the bypass passage when the temporal door seals the first passage. .

1 is a cross-sectional view of a conventional heat exchanger storage case,

2 is a cross-sectional view of a heat exchanger storage case according to the present invention, in which a bypass door opens a bypass passage;

Figure 3 is a cross-sectional view of the heat exchanger storage case according to the present invention, the bypass door is a state in which the mypass passage is sealed.

Explanation of symbols on the main parts of the drawings

20: heat exchanger storage case 36: bypass passage

37: Bypass Door

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. Figure 2 is a cross-sectional view of the heat exchanger storage case according to the present invention, the bypass door is a view of the bypass passage open state, Figure 3 is a cross-sectional view of the heat exchanger storage case according to the present invention, the bypass door is a bypass path It is a figure of the state sealed.

The present invention relates to a heat exchanger storage case of an automotive air conditioner to improve cooling performance in a vehicle by supplying cold air heat-exchanged from an evaporator to a lower portion of a vehicle through a floor outlet in a cooling mode.

The heat exchanger accommodating case 20 has a defrost outlet 22, a vent outlet 23, and a floor having an air inlet 21 formed in an air inlet and communicating with the air inlet 21 as usual. An outlet 24 is formed, and the floor outlet 24 communicates with a floor inlet 27 formed at an end portion of the partition wall 26 forming the floor flow path 25, and each of the outlets 23 and 24. Each of the floor inlets 27 is opened and closed by doors 28 and 29 and 30 to discharge air, and a tempor 31 is disposed on the air flow paths in front of the defrost outlet 22 and the vent outlet 23. It is provided to selectively open and close the first and second passages (32, 33) formed on both sides to control the air flow direction, behind the evaporator 34 and the second passage (33) on the air inlet (21) side The heater 35 is installed and configured to allow the air introduced into the air inlet 21 to selectively pass through the heat exchangers, and is supplied into the vehicle interior. It is installed on the duct.

In the heat exchanger accommodating case 20 of the air conditioner, the heat exchanger accommodating case 20 of the present invention is a partition wall forming the floor passage 25 near the rear of the heater 35 as shown in FIGS. 26) The bypass passage 36 is further vented to a predetermined position, and a bypass door 37 for opening and closing the bypass passage 36 is installed to be interlocked with the temporal door 31 so as to interlock with the temporal door 31. When the second passage 33 seals the second passage 33, the bypass door 37 seals the passage between the partition wall 26 and the heater 35 rear, and the tempor 31 is the first door. When the passage 32 is closed, the bypass passage 36 is closed.

The bypass passage 36 is installed within the rotation angle range of the bypass door 37, and is provided with a diameter through which sufficient air can pass.

The bypass door 37 which opens and closes the bypass passage 36 is installed in association with the temporal door 31 by a driving device (not shown).

The bypass door 37 blocks the rear of the partition 26 and the heater 35 when the temporal door 31 seals the second passage 33 so that the warm air is heat-exchanged in the heater 35. It is good to increase the cooling performance by preventing the flow through the second flow path (38).

In more detail, when the bypass door 37 is in the MAX COOL mode, that is, the bypass door 37 seals the second passage 33 to form the first flow path 39. When the first passage 32 is in the maximum open state, it is in intimate contact with the rear of the heater 35 to cut off between the heater 35 and the partition wall 26, and the temporal door 31 is connected to the first door 32. When the second passage 33 is opened by rotating about 20% from the two passages 33, the bypass door 37 may be operated to seal the bypass passage 36 to block supply of air. .

Here, the driving device for interlocking the temporal door 31 and the bypass door 37 has a link (not shown) connected to a cam (not shown), and bypasses the temporal door 31 to the cam and the link. The door 37 is rotatably connected, and when the temporal door 31 rotates to rotate the cam, a link interlocked with the door 37 moves to rotate the bypass door 37 by a predetermined angle.

The drive device as described above is a conventional drive device, in which a plurality of doors 28, 29, 30 open and close the defrost outlet 22, the vent outlet 23, and the floor inlet 27, respectively. Is configured to interlock with the drive device by the cam and the link, which rotates the cam when the temporal door 31 seals the second passage 33 and the door for opening and closing the defrost outlet (22) ( Each door 30 which opens and closes 28 and the floor inlet 27 rotates by a predetermined angle by interlocking with a cam to seal the defrost outlet 22 and the floor inlet 27, and the vent outlet ( The door 29 that opens and closes 23 is also rotated by the link to open the vent outlet 23. In addition, when the temporal door 31 seals the first passage 32, the cam rotates and the link is displaced to open and close the door 28 and the floor inlet 27, which open and close the defrost outlet 22, respectively. The door 30 opens the defrost outlet 22 and the floor inlet 27, and the door 29 that opens and closes the vent outlet 23 is operated in a manner of closing the vent outlet 23.

In addition to the method using the cam and the link, the driving device may be applied in various cases.

Next, the operating state of the present invention configured as described above will be described with reference to FIGS.

2 shows a state in which the temporal door 31 seals the second passage 33, and the bypass door 37 blocks a passage between the heater 35 and the partition 26 to bypass the passage 36. ) Is in an open state. This state is a MAX cooling mode (MAX COOL) state, the first passage 32 is the maximum opening, the cold air heat exchanged to the evaporator 34 through the first flow path (39) and the vent outlet (23) The bypass passage 36 is supplied to the front and the bottom of the driver's seat, respectively, to cool the cabin.

3 is a heating mode in which the temporal door 31 seals the first passage 32 and the bypass door 37 seals the bypass passage 36. The air passing through the second flow path 25 in the 33 is heat-exchanged with the warm air in the heater 35 and is supplied into the vehicle interior through the defrost outlet 22 and the floor inlet 27 to heat the interior of the vehicle interior. .

In the present invention configured as described above, since the air flows into the lower part of the vehicle interior via the defrost passage through the open bypass passage in the Max cooling mode, the air volume of the cold air supplied into the vehicle interior is increased, In addition, the cooling performance of the bypass door is blocked by blocking the second air passage from flowing out the heat exchanged from the heater.

Therefore, the cooling in the interior of the vehicle can be realized in a short time, and the lower part of the body can be cooled, which has the advantage of feeling a comfortable ride.

Claims (1)

An air inlet is formed at an air inlet, and a defrost outlet, a vent outlet, and a floor outlet are formed at a flow path that communicates with the air inlet, and the floor outlet communicates with a floor inlet formed at an end of a partition wall forming a floor channel. Each of the outlets and the floor inlet is opened and closed by a door to discharge air, and a temporal door is installed on the defrost outlet and the vent outlet front air passage to selectively open and close the first and second passages formed at both sides thereof. The air flow direction is controlled, and an evaporator is installed at the air inlet side and a heater is installed at the rear of the second passage so that the air introduced into the air inlet can selectively pass through the heat exchangers. In the heat exchanger storage case of the air conditioning apparatus installed in, Bypass passages are provided at predetermined positions of the partition walls forming the floor passages near the heaters, and bypass doors for opening and closing the bypass passages are installed to interlock with the temporal doors. And the bypass door seals between the partition wall and the heater rear when the seal is closed, and closes the bypass passage when the temporal door seals the first passage.