JPH10203133A - Air-conditioning device for automobile - Google Patents

Air-conditioning device for automobile

Info

Publication number
JPH10203133A
JPH10203133A JP1250997A JP1250997A JPH10203133A JP H10203133 A JPH10203133 A JP H10203133A JP 1250997 A JP1250997 A JP 1250997A JP 1250997 A JP1250997 A JP 1250997A JP H10203133 A JPH10203133 A JP H10203133A
Authority
JP
Japan
Prior art keywords
air
door
vent
outlet
evaporator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
JP1250997A
Other languages
Japanese (ja)
Inventor
Ryoichi Tochigi
良一 栃木
Original Assignee
Calsonic Corp
カルソニック株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Calsonic Corp, カルソニック株式会社 filed Critical Calsonic Corp
Priority to JP1250997A priority Critical patent/JPH10203133A/en
Publication of JPH10203133A publication Critical patent/JPH10203133A/en
Withdrawn legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To improve the temperature regulation characteristics during a bi-level mode. SOLUTION: An evaporator 13 and a heater core 14 are arranged in a unit case 11, temperature controlled air is blown out through a vent blowout port 23 toward the upper half-body of an occupant in a cabin, and temperature controlled air is blown out toward the feet of the occupant through a foot supply opening 25. A cold air directional rib 31 is formed on the cold air guide surface of a bi-level door 16 to guide air, passing through the evaporator 13, toward the vent blowout port 23 during a vent mode. A guide member 32 to guide air, passing through the evaporator 13, to the vent blowout port 23 is arranged at a vent door 24 to open and close the vent blowout port 23.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner for a motor vehicle which has improved temperature control characteristics in a bi-level mode, which is a mode of thermal head and foot operation.

[0002]

2. Description of the Related Art Generally, an air conditioner for automobiles is composed of three units, an intake unit, a cooler unit and a heater unit. However, recent air conditioners for automobiles are required to be downsized. , 3
There is a tendency not to form each unit individually but to integrate the whole or two units.

For example, a unit 10 of a conventional automobile air conditioner shown in FIG. 4 is an integrated unit of a cooler unit and a heater unit, and an intake unit (not shown) is arranged on the upstream side. The inside and outside air flow from an air inlet 12 formed in the unit case 11 by driving a fan incorporated in the unit.

On the upstream side in the unit case 11,
The evaporator 13 is incorporated and the evaporator 1
The refrigerant and the air circulating in the heat exchanger 3 exchange heat, and the air is cooled to a predetermined temperature.

[0005] A heater core 14 is mounted on the downstream side of the evaporator 13 so as to be displaced slightly downward from the evaporator 13. Between the evaporator 13 and the heater core 14, of the cold air passing through the evaporator 13, the heater core 14 A mix door 15 for controlling the ratio of air passing through 14 and air bypassing without passing is provided rotatably.

In addition to the mix door 15, a bi-level door 16 is also provided for discharging the cool air that has passed through the evaporator 13 directly into the passenger compartment through the outlet. The bi-level door 16 is provided so as to open and close a cool air discharge port 17 formed in the unit case 11,
The cool air that has passed through the evaporator 13 is not guided to the heater core 14 side, but is guided directly to the outlet.

[0007] The various outlets provided in the unit case 11 include a defrost outlet 21 and a vent outlet 23.
A defrost door 21 and a vent door 23 and a vent door 23 and a vent door 2.
4. A foot door 26 is rotatably provided at the foot outlet 25, respectively.

The condensed water generated by the evaporator 13 is caught by a net 18 for preventing water splash provided on the leeward side of the evaporator 13, and the condensed water attached to the net 18 falls downward by its own weight. It is discharged outside through a drain (not shown).

In this air conditioner for a vehicle, the vent door 24 and the bilevel door 16 are in the cooler mode.
Is opened, and cool air is blown out from the vent outlet 23 toward the upper body of the occupant in the passenger compartment. In this case, the defrost outlet 21 and the foot outlet 25
And the door 26 is closed.

In the heating mode, the foot door 26 is opened and hot air is blown out from the foot outlet 25 toward the feet of the occupant in the passenger compartment. In this case, the defrost outlet 21 and the vent outlet 23 are respectively connected to the differential door 22. And the vent door 24, and the bilevel door 16 is also closed.

In the case of a defrost mode for removing fogging of the windshield, the differential door 22 is opened,
Warm air is discharged from the defrost outlet 21 toward the inner surface of the windshield. In these heating or defrosting modes, the temperature of the air discharged from each outlet can be controlled by adjusting the opening of the mix door 15.

In a bi-level mode in which cold air is blown toward the upper body of the occupant while warm air is blown to the feet, the defrost air outlet 21 is fully closed by the differential door 22, and the vent air outlet 23 and the foot air outlet 25 are provided. Are opened at a predetermined opening by the vent door 24 and the foot door 26, respectively, and the bilevel door 16 is also opened as shown in the figure.

In the bi-level mode, part of the cool air is guided to the vent outlet 23 by the open bi-level door 16 and, depending on the opening of the mix door 15, a part of the remaining cool air is supplied to the heater core. After passing through the heater core 14, the remaining cool air flows without passing through the heater core 14, and the two are mixed and air at a predetermined temperature reaches the foot outlet 25 and is blown out.

[0014]

However, in a structure in which the vent outlet 23 and the foot outlet 25 are provided close to each other as shown in FIG. 4, the guide is guided to the bilevel door 16 after passing through the evaporator 13. Since the direct flow is not reliably given to the flowing cold air, not all flows into the vent outlet 23 but a part flows into the foot outlet 25 or a part of the warm air passing through the heater core 14. May flow into the vent outlet 23, and it may be difficult to reliably control the temperature of the air blown from the vent outlet 23 and the foot outlet 25. In particular, when controlling the temperature of the air blown out from the vent outlet 23 and the foot outlet 25 in the bilevel mode, it is difficult to improve the controllability.

An object of the present invention is to improve the temperature control characteristics in the bi-level mode.

[0016]

In order to achieve the above-mentioned object, the invention according to claim 1 comprises an evaporator for cooling the air, a heater core for heating the air, and a temperature-controlled air for the upper body of the occupant. A vent door that opens and closes the vent outlet, a foot door that opens and closes the foot outlet, and a vent mode in a unit case having a vent outlet that blows out and a foot outlet that blows temperature-controlled air toward the feet of the occupant. Sometimes, a bi-level door for guiding air passing through the evaporator toward the vent outlet is provided, wherein the cold air passing through the evaporator is applied to the surface of the bi-level door on the side of the cool air passage. A cool air directional rib for guiding the vent outlet is provided.

According to this configuration, when the bi-level mode is set, the cool air that has passed through the evaporator is guided to the vent outlet by the cool air directional rib provided on the bi-level door, and the cold air is directed to the vent door. Since the cool air that has reached is guided by the vent door itself toward the vent outlet, the cool air is reliably guided to the vent outlet, and the air discharged from the vent outlet into the vehicle interior and the vehicle from the foot outlet are A temperature difference can be reliably provided between the air discharged into the room and the room. When the bi-level door is closed, a bi-level mode with a small temperature difference can be obtained.

According to a second aspect of the present invention, the vent door includes:
It has a guide member for guiding the cool air that has passed through the evaporator in the bilevel mode to the vent outlet.

With this configuration, the arrangement of the passage space formed in the guide member provided in the vent door and the passage space formed by the cold air directional rib and the bilevel door itself are arranged on the same axis. Only by appropriately selecting the state where the air is blown or not arranged on the same axis, even the warm air blown out from the foot outlet can be led to the vent outlet to some extent, and the temperature of the cool air blown out from the vent outlet can be increased. Can also be changed.

[0020]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a cross-sectional view showing an air conditioner unit constituting an air conditioner for a vehicle according to an embodiment of the present invention. Members common to those shown in FIG. Some are omitted.

An evaporator 13 is incorporated in the unit case 11 of the air conditioner unit 10 on the upstream side, and a heater core 14 is incorporated on the downstream side of the evaporator 13 so as to be shifted slightly downward. The ratio of the air passing through the heater core 14 and the air bypassing without passing through the heater core 14 is controlled by the mix door 15, and the air that has passed through the evaporator 13 is discharged into the vehicle cabin through the bi-level door 16 directly through the air outlet. I also try to make it.

In particular, when the bilevel door 16 is opened, the surface of the bilevel door 16 facing the evaporator 13 is the cold air guide surface side, and the opposite surface is the warm air passing through the heater core 14. It will be the side to guide.

FIG. 2 is a perspective view showing a detailed structure of the bi-level door 16.
a and a door shaft 16b for rotatably supporting the door body 16 on the unit case 11. The cold air side surface of both ends of the door body 16a passes through the evaporator 13 to the door body 16a. A cool air directivity rib 31 for guiding the reached cool air toward the vent outlet 23 is provided.
The cool air directional ribs 31 prevent the cool air that has passed through the evaporator 13 and reached the door main body 16a from flowing to the foot outlet 25 from both ends.

FIG. 3 is a perspective view showing a detailed structure of the vent door 24. The vent door 24 has a door body 24a.
And door arms 24b provided at both ends of the inner surface thereof
And a door shaft 24c provided at the base end of each door arm 24b to rotatably support the door body 24a with respect to the unit case 11. On the inner surface of the door body 24a, a guide member 32 having a support portion 32a disposed inside both ends of the door arm 24b and a guide portion 32b attached therebetween.
Is provided.

The guide member 32 forms a cool air passage 33 between the guide portion 32b and the door body 24a. When the bi-level mode is set, the guide member 32 passes through the evaporator 13 and is guided to the bi-level door 16. The cool air is guided to the vent outlet 23 through the cool air passage 33. Therefore, the cool air that has passed through the cool air outlet 17 is reliably guided to the vent outlet 23 without going around the foot outlet 25.

Next, the operation of the above embodiment will be described.
First, when the vent mode, that is, the cooling mode, is set, the vent door 24 is fully opened (position a), and the foot door 26 is fully closed. Located in
When a large amount of cold air is guided to the vent outlet 23, the bi-level door 16 is also opened, and a passage space formed inside a guide member 32 provided substantially in parallel with the vent door 24 and the bi-level door 16 are provided. Since the passage space formed by the formed cold air directional rib 31 and the bi-level door 16 forms a substantially continuous passage, the cool air that has passed through the evaporator 13 is There is no ventilation resistance added to the flow, the flow is extremely smooth, and a full-cool state with an excellent cool air feeling is obtained.

Next, when the bi-level mode is set,
The defrost air outlet 21 is fully closed by the differential door 22, but the vent air outlet 23 and the foot air outlet 25 are each opened at a predetermined opening, and the bilevel door 16 is also opened as shown in the figure. Further, the mix door 15 is set at an intermediate position.

In this mode, the evaporator 13
The cold air that has passed through the upper part of the
And the guide space 32 formed by the cool air directional rib 31 and the bi-level door 16 in the same manner as in the vent mode.
Since the passage space in the inside forms a substantially continuous passage, the air flow does not add a ventilation resistance and flows extremely smoothly.

On the other hand, almost half of the cool air that has passed through portions other than the upper portion of the evaporator 13 passes through the heater core 14 by the mix door 15 and is heated by the heater core 14 to become hot air. The other half of the cool air flows without passing through the heater core 14, a part of the cool air is guided to the vent outlet 23, and the rest is mixed with the warm air at a predetermined temperature to reach the foot outlet 25 and is blown out. You.

In this case, the ratio of the air passing through the heater core 14 and the air not passing through is controlled by adjusting the opening degree of the mix door 15, and the cool air blown out from the vent outlet 23 and the foot outlet 25 is reduced. Although the temperature difference between the hot air can be adjusted, as in the present embodiment, the opening degree of the vent door 24 is adjusted, for example, when the position is changed from the position a to the position b, the guide member 32 provided in the vent door 24 is And the passage space formed by the cold air directional rib 31 and the bi-level door 16 itself forms a substantially continuous passage or a state where the passage space is slightly shifted. In addition to adjusting the amount of cold air to be blown, the warm air blown out from the foot outlet 25 can be guided to the vent outlet 23 to some extent. Adjusted to a temperature of the cool air blown et al., It can be made variable.

If the bi-level door 16 is closed, all the cool air flows to the lower passageway of the mix door 15, so that the temperature difference between the air blown out from the vent outlet 23 and the foot outlet 25 is reduced. Air volume can be varied.

It should be noted that the present invention is not limited to the above-described embodiment, but can be variously modified within the scope of the claims. For example, in the above-described embodiment, the heater core 14 is configured to be located below the evaporator 13. It goes without saying that it can be applied.

[0033]

As described above, according to the first aspect of the present invention, in the bi-level mode, the cold air passing through the evaporator is reliably guided to the vent outlet with directivity, and discharged from the vent outlet into the vehicle interior. The temperature difference between the discharged air and the air discharged from the foot outlet into the vehicle compartment can be ensured.

According to a second aspect of the present invention, the communication between the passage space formed in the guide member provided in the vent door, the passage space formed by the cold air directional rib and the bilevel door itself, and the vent door Can be selected, the temperature of the cool air blown out from the vent outlet can be changed, and the amount of cool air can be changed by changing the opening of the vent door.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an air conditioner for a vehicle according to an embodiment of the present invention.

FIG. 2 is an enlarged perspective view showing the bi-level door shown in FIG.

FIG. 3 is an enlarged perspective view showing the vent door shown in FIG. 1;

FIG. 4 is a cross-sectional view showing a conventional automobile air conditioner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Unit case, 12 ... Air inlet, 13 ... Evaporator, 14 ... Heater core, 15 ... Mix door, 16 ... Bilevel door, 17 ... Cold air discharge port, 19 ... Mix passage, 21 ... Defrost outlet, 22 ... Diff door Reference numeral 23: vent outlet, 24: vent door, 25: foot outlet, 26: foot door, 31: cold air directional rib, 32: guide member.

Claims (2)

[Claims]
1. An evaporator (13) for cooling air, a heater core (14) for heating air, a vent outlet (23) for blowing temperature-controlled air toward the upper body of the occupant, and In a unit case (11) having a foot outlet (25) for blowing out temperature-controlled air, a vent door (24) for opening and closing the vent outlet (23) and a foot door (24) for opening and closing the foot outlet (25). 26), and a bi-level door (16) for guiding air passing through the evaporator (13) in the vent mode toward the vent outlet (23). An air conditioner for automobiles, wherein a cool air directional rib (31) for guiding cool air passing through the evaporator (13) to the vent outlet (23) is provided on a surface of the door (16) on the side of the cool air passage. apparatus.
2. The vent door (24) has a guide member (32) for guiding the cold air that has passed through the evaporator (13) to the vent outlet (23) in the bi-level mode. 2. The air conditioner for vehicles according to 1.
JP1250997A 1997-01-27 1997-01-27 Air-conditioning device for automobile Withdrawn JPH10203133A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1250997A JPH10203133A (en) 1997-01-27 1997-01-27 Air-conditioning device for automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1250997A JPH10203133A (en) 1997-01-27 1997-01-27 Air-conditioning device for automobile

Publications (1)

Publication Number Publication Date
JPH10203133A true JPH10203133A (en) 1998-08-04

Family

ID=11807326

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1250997A Withdrawn JPH10203133A (en) 1997-01-27 1997-01-27 Air-conditioning device for automobile

Country Status (1)

Country Link
JP (1) JPH10203133A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002052918A (en) * 2000-06-30 2002-02-19 Valeo Klimasyst Gmbh Air flap
WO2006134905A1 (en) * 2005-06-14 2006-12-21 Calsonic Kansei Corporation Air conditioner unit for vehicle
JP2009083853A (en) * 2009-01-26 2009-04-23 Mitsubishi Heavy Ind Ltd Vehicular air conditioner
JP2011131889A (en) * 2011-04-07 2011-07-07 Mitsubishi Heavy Ind Ltd Air conditioner for vehicle
WO2014058009A1 (en) * 2012-10-11 2014-04-17 株式会社ヴァレオジャパン Air conditioning device for vehicle

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002052918A (en) * 2000-06-30 2002-02-19 Valeo Klimasyst Gmbh Air flap
WO2006134905A1 (en) * 2005-06-14 2006-12-21 Calsonic Kansei Corporation Air conditioner unit for vehicle
JP2009083853A (en) * 2009-01-26 2009-04-23 Mitsubishi Heavy Ind Ltd Vehicular air conditioner
JP2011131889A (en) * 2011-04-07 2011-07-07 Mitsubishi Heavy Ind Ltd Air conditioner for vehicle
WO2014058009A1 (en) * 2012-10-11 2014-04-17 株式会社ヴァレオジャパン Air conditioning device for vehicle
JPWO2014058009A1 (en) * 2012-10-11 2016-09-05 株式会社ヴァレオジャパン Air conditioner for vehicles

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Legal Events

Date Code Title Description
A300 Withdrawal of application because of no request for examination

Free format text: JAPANESE INTERMEDIATE CODE: A300

Effective date: 20040406