JP2003104031A - Air conditioner for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner for vehicle allowing the reduction of the size of a unit case, remaining air conditioning performance as it is. SOLUTION: A mixing passage 33 for mixing cold air and hot air is provided within the unit case 11. An entrance upper door 41 and an entrance lower door 42 of a rotation type cantilever door for opening/closing an entrance part of the mixing passage 33 by dividing the entrance part into a mixing passage upper entrance 51 and a mixing passage lower entrance 52 are provided. An exit upper door 43 and an exit lower door 44 of the rotation type cantilever door for opening/closing an exit part of the mixing passage 33 by dividing the exit part into a mixing passage upper exit 53 and a mixing passage lower exit 54 are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle air conditioner for adjusting a vehicle interior temperature.

[0002]

2. Description of the Related Art Conventionally, as a place for installing a car navigation monitor and a television monitor (2a), an upper part of a center console (2) is generally used as shown in FIG.

The reason for this is that when the driver checks the screen display of the monitor (2a) while driving, the amount of movement of the line of sight can be reduced, and at the same time, other occupants can sit in their seats and monitor (2a). ) It is possible to check the screen display.

In recent years, in order to improve the visibility of the screen display by displaying various information at once on the monitor (2a) and enlarging characters and figures, the size of the monitor screen has been increasing in recent years. Has been.

[0005]

However, in the case of a vehicle equipped with a conventional vehicle air conditioner, for example, the vehicle air conditioner disclosed in Japanese Unexamined Patent Publication No. 2001-30733 having a configuration as shown in FIG. In this case, since the position of the upper part of the center console (2) becomes high, it may happen that the driver's field of view is narrowed if the monitor (2a) is enlarged in the same state. Therefore, a monitor of a desired size should be attached. Was difficult.

This is because the opening (5a) and the face opening (5b) of the front seat air mixing section (4) arranged above the air conditioning unit (1) mounted in the vehicle compartment are 1 each.
Since the front seat air mix door (6a) and the foot face switching door (6b), which are two rotating cantilever doors, are opened and closed, the height of each door (6a, 6b) increases, Each door (6a, 6b) is a unit case (1)
This is because it is difficult to reduce the size of the unit case (1) in the front-rear direction because a large space is required to rotate the unit case.

Accordingly, in order to reduce the size of the unit case (1) in the front-rear direction, it is necessary to shift the arrangement positions of the doors (6a, 6b), so that the flow path of the conditioned air has a complicated shape. , The ventilation resistance was increasing.

Even when the vehicle is equipped with the unit case (1) in which the disposition positions of the doors (6a, 6b) are shifted, the disposition positions of the face outlets (1a, 1b) and the face duct (1c, The position of the upper part of the center console (1) could not be lowered sufficiently only by changing the shape of 1d).

Therefore, the present invention has been made in view of the above conventional problems, and it is possible to reduce the size of the unit case in the front-rear direction without deteriorating the air conditioning performance such as the air flow rate. The purpose is to provide a device.

[0010]

According to a first aspect of the present invention, a cooler for cooling the conditioned air and a heater for heating the conditioned air are provided in a unit case in which the air conditioning unit is housed. And an air-conditioning air distribution path for distributing the air-conditioning air that has passed through the cooler, and a cooling-air distribution path for distributing the air-conditioning air that has passed through the cooler into two. The heater inflow path, in which one of the conditioned air distributed in the air is sent to the heater, and the mixing path in which the other conditioned air distributed in the hot / cold distribution path is mixed with the conditioned air that has passed through the heater, Vent communication passage where the air-conditioning air that has exited the passage is sent to the vent duct, a heater outflow passage where the air-conditioning air that has passed through the heater is sent to the mixing passage, and the other air-conditioning air that is distributed in the hot / cold distribution passage. The inlet of the mixing channel where the air is blown is divided into an upper inlet for the mixing channel and a lower inlet for the mixing channel The opening upper and lower doors of the rotating cantilever door that opens and closes, and the outlet of the mixing passage through which the conditioned air in the mixing passage is sent to the vent communication passage is divided into an upper mixing passage outlet and a lower mixing passage outlet. The upper and lower doors of the rotating cantilever door that opens and closes are provided.The lower door of the inlet controls the opening degree of the inlet of the heater inflow channel while adjusting the opening degree of the lower inlet of the mixing channel. The outlet lower door is arranged so as to adjust the opening degree of the mixing passage lower outlet while adjusting the opening degree of the heater outlet passage.

Thus, the door for opening and closing the entrance and the exit of the mixing passage is divided into two parts, so that the height dimension of each door can be reduced, so that the size of the entire air conditioner is reduced. be able to.

Further, in the cooling operation state, the inlet lower door can close the inlet of the heater inflow passage, while the outlet lower door can close the outlet of the heater outflow passage. The temperature inside the vehicle can be lowered quickly because this is prevented.

Further, in the temperature control operation state, since the upper entrance of the mixing path can close the upper entrance of the mixing path and the lower door of the exit can close the lower exit of the mixing path, a sufficient length of the mixing path is ensured and a uniform temperature is maintained. The conditioned air can be sent.

According to a second aspect of the present invention, in the vehicle air conditioner according to the first aspect, the inlet upper door fully opens the mixing path upper inlet in the cooling maximum air volume operation state, and the outlet is opened. The lower door fully closes the outlet of the heater outflow passage while fully opening the mixing passage lower outlet, and the inlet lower door fully closes the inlet of the heater inflow passage while fully opening the mixing passage lower inlet, The upper door of the outlet is arranged so that the upper outlet of the mixing path is fully opened.

As a result, in addition to the effect of the first aspect, the length of the mixing passage can be shortened while widening the flow passage cross-sectional area of the mixing passage in the cooling maximum air volume state, so that the blowing resistance is greatly reduced. The maximum air volume can be increased.

According to the third aspect of the present invention, the unit case in which the air conditioning unit is housed includes the cooler for cooling the conditioned air and the heater for heating the conditioned air, and the unit case The blast air introduction path through which the conditioned air introduced inside is sent to the cooler, the hot / cold distribution path through which the conditioned air that has passed through the cooler is distributed into two, and one of the hot and cold distribution paths The heater inflow path where the conditioned air is sent to the heater, the mixing path where the other conditioned air distributed in the hot / cold distribution path is mixed with the conditioned air that has passed through the heater, and the conditioned air that exits the mixing path Vent passage that blows air to the vent duct, a heater outflow passage that blows the conditioned air that has passed through the heater to the mixing passage, and a mixing passage that blows the other conditioned wind that is distributed in the hot / cold distribution passage. The inlet part of the mixing path is located above the mixing path and below the mixing path.
The upper and lower entrances of the rotating cantilever door that is divided and opened and closed, and the outlet of the mixing passage where the conditioned air in the mixing passage is blown to the vent communication passage. An opening upper door and an exit lower door of a rotatable cantilever door that are divided into two and are opened and closed are provided, and the opening lower door controls the opening of the mixing channel lower inlet while controlling the opening of the mixing channel lower inlet. The mixing passage lower outlet and the heater outlet outlet are arranged adjacent to each other, and in the cooling maximum air volume operation state, the inlet upper door fully opens the mixing passage upper inlet, and the outlet lower The door fully closes the outlet of the heater outlet while fully opening the lower outlet of the mixing passage, and the inlet lower door fully closes the inlet of the heater inlet while fully opening the lower inlet of the mixing passage, The upper door of the outlet fully opens the upper outlet of the mixing path. Are cormorants disposed, in a state in which the inlet upper door is the mixed road side inlet is fully closed, wherein said outlet lower door has the mixing passage lower outlet is fully closed.

As a result, in the cooling maximum air volume operation state,
By fully opening the upper mixing channel inlet, the lower mixing channel inlet, the upper mixing channel outlet, and the lower mixing channel outlet, the length of the mixing channel can be shortened while widening the cross-sectional area of the flow channel. However, since the maximum air volume can be increased, the temperature inside the vehicle interior can be quickly lowered.

In other operating conditions, by closing the mixing channel upper inlet and the mixing channel lower outlet, a sufficient length of the mixing channel can be secured, so that conditioned air having a uniform temperature is blown. be able to.

According to a fourth aspect of the present invention, in the vehicle air conditioner according to any one of the first to third aspects, the foot duct communication port connected to the foot duct and the conditioned air are the heater. It is characterized in that a foot duct communication passage that is distributed from the outflow passage to the foot duct communication opening and a foot door that opens and closes an entrance of the foot duct communication passage are provided.

According to this, in addition to the effects of the first to third aspects, since the foot duct communication passage is branched from the heater outflow passage, it is possible to heat the feet without lowering the temperature of the conditioned air.

According to a fifth aspect of the present invention, in the vehicle air conditioner according to the fourth aspect, the foot duct connection is provided on both left and right side surfaces of the heater outflow passage in a state where the air conditioning unit is mounted on the vehicle. It is characterized in that a passage and a foot duct communication port are provided.

According to this, in addition to the effect of claim 4, the foot duct communication passage and the foot duct communication port are provided on both left and right side surfaces of the heater outflow passage, so that the dimension in the vehicle front-rear direction can be reduced. You can

According to a sixth aspect of the present invention, in the vehicle air-conditioning system according to any one of the first to fifth aspects, a defroster duct communication port connected to the defroster duct,
A defroster communication passage through which conditioned air is sent to the defroster duct communication opening, and the outlet upper door is arranged so as to adjust the opening degree of the defroster communication passage while adjusting the opening degree of the mixing path upper outlet. It is characterized by being set up.

Thus, in addition to the effects of the first to fifth aspects, since the outlet upper door can close the inlet of the defroster communication passage, it is possible to prevent conditioned air from leaking to the defroster.

[0025]

According to the present invention as set forth in claim 1, since each of the doors for opening and closing the inlet and the outlet of the mixing path is divided into two, the height dimension of each door can be reduced. The overall size of the air conditioner can be reduced.

Further, in the cooling operation state, the inlet lower door can close the inlet of the heater inflow passage, while the outlet lower door can close the outlet of the heater outflow passage, so that the warm air having passed through the heater enters The temperature inside the vehicle can be lowered quickly because this is prevented.

Further, in the temperature control operation state, it is possible to close the mixing path upper entrance with the entrance upper door and close the mixing path lower exit with the exit lower door, so that the length of the mixing path is sufficiently ensured and the uniform temperature is maintained. The conditioned air can be sent.

According to the invention of claim 2, claim 1
In addition to the effect of (1), the length of the mixing passage can be shortened while widening the flow passage cross-sectional area of the mixing passage in the cooling maximum air volume state, so that the ventilation resistance can be significantly reduced and the maximum air volume can be increased.

According to the third aspect of the present invention, in the cooling maximum air volume operation state, the mixing channel upper inlet, the mixing channel lower inlet, the mixing channel upper outlet, and the mixing channel lower outlet are fully opened.
Since the length of the mixing passage can be shortened while widening the flow passage cross-sectional area, the air flow resistance can be greatly reduced and the maximum air flow can be increased, so that the temperature inside the vehicle interior can be quickly reduced.

In other operating conditions, by closing the mixing channel upper inlet and the mixing channel lower outlet, a sufficient length of the mixing channel can be secured, so that conditioned air having a uniform temperature is blown. be able to.

According to the invention of claim 4, claim 1
In addition to the effects of ~ 3, since the foot duct communication passage is branched from the heater outflow passage, it is possible to heat the feet without lowering the temperature of the conditioned air.

According to the invention of claim 5, claim 4
In addition to the above effect, since the foot duct communication passage and the foot duct communication port are provided on both left and right side surfaces of the heater outflow passage, the dimension in the vehicle front-rear direction can be reduced.

According to the invention of claim 6, claim 1
In addition to the effects of ~ 5, the outlet upper door can close the inlet of the defroster communication passage, so that the conditioned air can be prevented from leaking to the defroster.

[0034]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. 1 to 11 show an embodiment of a vehicle air conditioner of the present invention.

FIG. 1 is an overall view of the air conditioner. FIG. 2 is a partially transparent view taken along the line AA in FIG.
Each door is omitted to make it easier to understand the flow of air conditioning air.

In the vehicle air conditioner 10 of the present embodiment, a cooler 12 for cooling the conditioned air and a heater 13 for heating the conditioned air are housed in the unit case 11, and the conditioned air is also housed in the unit case 11. Air-conditioning air inlet 21 for introducing
And a blast air introduction path 31 for blowing the introduced conditioned air to the cooler 12, a hot / cold distribution path 32 for distributing the conditioned air that has passed through the cooler 12 into two, and a hot / cold distribution path 32 for distribution. The heater inflow passage 34 that blows the other conditioned air to the heater 13.
A mixing passage 33 through which the other conditioned air distributed in the hot and cold distribution passage 32 is blown, and a heater outflow passage 35 through which conditioned air that has passed through the heater 13 is blown. The conditioned air that has passed through the heater outflow passage 35 is connected so as to be sent to the mixing passage 33.

The outlet of the mixing passage 33 is communicated with the vent communication passage 37, and the vent communication passage 37 is connected to the center vent communication opening 22.
The side vent communication port 23 and the rear communication port 24 are communicated so as to distribute the conditioned air.

The conditioned air whose temperature is made uniform in the mixing passage 33 is branched into the defroster communication passage 36 and sent to the defroster duct communication opening 25. The unit case 11
Is installed in the vehicle, the center vent communication port 22 is disposed so as to be located on both left and right side surfaces of the unit case 11, and the side vent communication port 23 is disposed so as to be positioned on the upper surface of the unit case 11. ing.

The conditioned air in the mixing passage 33 is also sent to the foot duct communication port 26 through the foot duct communication passage 38 branched from the heater outflow passage 35. The foot duct communication passage 38 and the foot duct communication port 26 are connected to the heater outflow passage 35 when the vehicle air conditioner 10 is mounted on the vehicle.
It is arranged so as to be located on both the left and right side surfaces.

The defroster communication passage 36 has an entrance upper door 41.
And the outlet upper door 43 and the defroster communication port 25 are provided so as to communicate with each other.

The outlet 57 of the heater outflow passage is the lower inlet 5 of the mixing passage.
2 and the mixing path lower outlet 54.

The inlet of the mixing channel 33 is connected to the upper inlet 51 of the mixing channel.
And an inlet upper door 41 and an inlet lower door 42 which are opened / closed into a mixing passage lower inlet 52 and an outlet which is opened / closed by dividing an outlet portion of the mixing passage 33 into a mixing passage upper outlet 53 and a mixing passage lower outlet 54. An upper door 43 and an outlet lower door 54 are provided.

The entrance upper door 41 and the entrance lower door 4
2, the exit upper door 43, and the exit lower door 44 are all pivotable cantilever doors, and the entrance upper door 41 and the exit upper door 43
The outlet lower door 44 is arranged so as to rotate in the mixing passage 33.

The upper entrance door 41 is controlled so that the upper entrance 51 of the mixing passage is fully opened in the maximum cooling air volume state and fully closed in other states. The inlet lower door 42 is arranged so as to adjust the opening degree of the mixing channel lower inlet 52 and the heater inlet channel inlet 55, and further, the mixing channel lower inlet 52 is fully opened and the heater is heated in the maximum cooling air volume state. Inlet entrance 55
Is controlled to be fully closed.

The outlet upper door 43 is controlled so that the mixing path upper outlet 53 is fully opened in the cooling maximum air volume state. The outlet lower door 44 is the mixing passage lower outlet 5 in the cooling maximum air volume state.
4 is fully opened and the heater outflow passage outlet 57 is fully closed.

The foot duct communication passage branched from the heater outflow passage to blow the conditioned air to the foot duct communication passage is provided with a butterfly type which opens and closes each foot duct communication passage inlet provided on both sides of the heater outflow passage. Foot doors 45, 45 are provided respectively.

(Explanation of Modes) Next, the operating states in each air blowing mode will be described.

-Vent Mode- Fig. 3 shows the positions of the respective doors during the air conditioning temperature control operation in the vent mode.

In the vent mode, the center vent communication port 2
Air-conditioned air is blown to the 2, the side vent communication port 23, and the rear communication port 24.

During the air conditioning temperature control operation, as shown in FIG.
1 is fully closed, and the openings of the mixing channel lower inlet 52 and the heater inlet channel 55 are adjusted by the inlet lower door 42 so that the conditioned air that has passed through the cooler 12 is mixed with the mixing channel 33 and the heater inlet channel. And the temperature of the conditioned air is adjusted.

Further, the outlet upper door 43 fully opens the mixing path upper outlet 53 and fully closes the defroster communication passage inlet 56 to shut off air flow to the defroster communication port, and the outlet lower door 44 lowers the mixing path. The outlet 54 is fully closed, the heater outflow passage outlet 57 is fully opened, and the conditioned air heated by passing through the heater 13 is introduced into the mixing passage.

Further, the foot doors 45, 45 completely close the foot communication passage inlets 58, 58 to shut off the air blowing to the foot communication port 26.

Therefore, the two conditioned air having different temperatures introduced into the mixing passage 33 are mixed while the flow directions thereof are changed, and the temperature becomes uniform, and the air is fed to the respective communicating ports 22, 23, 24 through the vent communicating passage 37. Blown.

During the cooling operation, the upper inlet door 41 fully opens the upper inlet 51 of the mixing path and the lower door 42 of the inlet.
Thus, the mixing channel lower inlet 52 is fully opened and the heater inflow channel inlet 55 is fully closed, so that all the conditioned air that has passed through the cooler 12 is sent to the mixing channel 33.

Further, the upper outlet 53 of the mixing passage is fully opened by the upper door 43 of the mixing passage, and the inlet 56 of the defroster communication passage is fully closed to block the air flow to the communication passage of the defroster. The outlet 54 is fully opened and the heater outflow passage outlet 57 is fully closed.

Furthermore, the foot doors 45, 45 fully close the foot communication passage inlets 58, 58 to block the air flow to the foot communication ports.

Therefore, since the air-conditioning air introduced into the mixing passage 33 has a large passage cross-sectional area and a short passage length of the mixing passage 33, the ventilation resistance is low, and the ventilation air passage 37 passes through the vent communication passage 37 before the temperature of the air-conditioning air rises. The air is blown to each of the communication ports 22, 23, 24.

During the heating operation, the upper entrance 41 of the mixing path is fully closed by the upper door 41 of the entrance, and the lower door 42 of the entrance is closed.
By fully closing the mixing path lower inlet 52 and fully opening the heater inflow path inlet 55, all the conditioned air that has passed through the cooler 12 is sent to the heater inflow path 34.

The outlet upper door 43 fully opens the mixing passage upper outlet 53, and the defroster communication passage inlet 56
Is completely closed and the air blown to the defroster communication port is blocked,
The outlet lower door 44 fully closes the mixing passage lower outlet 54 and fully opens the heater outlet passage outlet 57.

The foot doors 45, 45 completely close the foot communication passage inlets 58, 58 to block the air flow to the foot communication passages.

The conditioned air heated by the heater 13 is sent from the vent communication passage 37 to the respective communication ports 22, 23, 24 through the heater outflow passage 35 and the mixing passage 33.

-Defroster Mode- Fig. 4 shows each door position during heating operation in the defroster mode.

In the defroster mode, conditioned air is blown to the defroster communication port 25 through the defroster communication passage 36.

During the air conditioning air temperature adjusting operation, the upper inlet door 41 fully closes the upper mixing passage inlet 51, and the lower inlet door 42 adjusts the opening degrees of the lower mixing passage inlet 52 and the heater inlet passage inlet 55. As a result, the conditioned air that has passed through the cooler 12 is distributed to the mixing passage 33 and the heater inflow passage 34, and the temperature of the conditioned air is adjusted.

The outlet upper door 43 fully closes the mixing passage upper outlet 53, the defroster communication passage inlet 56 is fully opened, and the outlet lower door 44 fully closes the mixing passage lower outlet 54. The outlet 57 is fully opened and the conditioned air heated by passing through the heater 13 is introduced into the mixing passage.

Further, the foot doors 45, 45 fully close the foot communication passage inlets 58, 58 to block the air flow to the foot communication ports.

Therefore, the two conditioned air having different temperatures introduced into the mixing passage 33 are mixed while passing through the mixing passage 33 to have a uniform temperature, and are blown to the defroster communication port 25 through the defroster communication passage 36. .

During the cooling operation, the upper entrance 41 of the mixing path is fully closed by the upper door 41 of the entrance, and the lower door 42 of the entrance is closed.
Thus, the mixing channel lower inlet 52 is fully opened and the heater inflow channel inlet 55 is fully closed, so that all the conditioned air that has passed through the cooler 12 is sent to the mixing channel 33.

The upper outlet door 43 fully closes the upper mixing passage outlet 53, the defroster communication passage inlet 56 is fully opened, and the lower outlet door 44 fully closes the lower mixing passage outlet 54 and heating. The outlet 57 is fully opened.

Further, the foot doors 45, 45 fully close the foot communication passage inlets 58, 58 to shut off the air blowing to the foot communication ports.

Therefore, the conditioned air introduced into the mixing passage 33 has a large passage cross-sectional area and a short passage length of the mixing passage 33, so that the ventilation resistance is low and the temperature of the conditioned air is increased by receiving heat from the surroundings. The air is blown to the defroster communication port 25 through the defroster communication passage 36.

During heating operation, as shown in FIG.
The inlet upper door 41 fully closes the mixing path upper inlet 51, the inlet lower door 42 fully closes the mixing path lower inlet 52, and the heater inflow path inlet 55 is fully opened, whereby the cooler 12 is closed. All the conditioned air that has passed is sent to the heater inflow path 34.

The outlet upper door 43 fully closes the mixing passage upper outlet 53, the defroster communication passage inlet 56 is fully opened, and the outlet lower door 44 fully closes the mixing passage lower outlet 54 and heating. The outlet 57 is fully opened.

Further, the foot doors 45, 45 completely close the foot communication passage inlets 58, 58 to block the air flow to the foot communication ports.

Therefore, the conditioned air heated by the heater 13 is sent from the defroster communication passage 36 to the defroster communication port 25 through the heater outflow passage 35 and the mixing passage 33.

-Foot Mode- Fig. 5 shows the positions of the respective doors during the heating operation in the foot mode.

In the foot mode, the foot communication ports 26, 2
Air-conditioning air is blown to 6.

During the air conditioning air temperature adjusting operation, the upper entrance 41 of the mixing passage is fully opened and the upper entrance 56 of the defroster communication passage is fully closed. The lower door 42 of the entrance lowers the inlet 52 of the mixing path and the heater. By adjusting the opening degree of the inflow passage inlet 55, the conditioned air that has passed through the cooler 12 is distributed to the mixing passage 33 and the heater inflow passage 34, and the temperature of the conditioned air is adjusted.

The outlet upper door 43 fully closes the mixing path upper outlet 53, the outlet lower door 44 fully closes the mixing path lower outlet 54, and the heater outflow path outlet 57 fully opens. The conditioned air introduced into the mixing passage is sent to the heater outlet passage outlet 57.

Further, the foot doors 45, 45 fully open the foot communication passage inlets 58, 58 to blow all the conditioned air to the foot communication ports.

Therefore, the conditioned air having different temperatures introduced into the foot communication passages 38, 38 is communicated with the foot communication ports 26, 26.
While being blown into, the temperature is uniformized by mixing.

During the cooling operation, the inlet upper door 41 fully opens the mixing passage upper inlet 51, the defroster communication passage inlet 56 is fully closed, and the inlet lower door 42 fully opens the mixing passage lower inlet 52. When the inlet 55 of the heater inflow path is fully closed, all the conditioned air that has passed through the cooler 12 is sent to the mixing path 33.

Further, the upper mixing door upper outlet 53 is fully closed by the upper outlet door 43, the lower mixing passage outlet 54 is fully closed by the lower outlet door 44, and the heater outflow passage outlet 57 is fully opened. The conditioned air introduced into the mixing passage is sent to the heater outlet passage outlet 57.

Further, the foot doors 45, 45 fully open the foot communication passage inlets 58, 58 to blow all the conditioned air to the foot communication ports.

Therefore, the conditioned air cooled by the cooler 12 passes through the heater outflow path 35 and the foot communication paths 38, 38.
The air is blown to the foot communication ports 26, 26 through.

During the heating operation, as shown in FIG.
The inlet upper door 41 fully closes the mixing path upper inlet 51, the inlet lower door 42 fully closes the mixing path lower inlet 52, and the heater inflow path inlet 55 is fully opened, whereby the cooler 12 is closed. All the conditioned air that has passed is sent to the heater inflow path 34.

Further, the mixing passage lower outlet 54 is fully opened by the outlet lower door 44, and the heater outlet passage outlet 5 is provided.
7 is fully closed.

Further, the foot doors 45, 45 fully open the foot communication passage inlets 58, 58 to blow all the conditioned air to the foot communication ports.

Therefore, the conditioned air heated by the heater 13 passes through the heater outflow passage 35 and the foot communication passages 38, 38.
Is blown to the foot communication ports 26, 26.

-Vent foot mode- Fig. 6 shows the position of each door during the air conditioning temperature control operation in the vent foot mode.

In the vent foot mode, the center vent communication port 22, the side vent communication port 23, the rear communication port 24,
Air conditioning air is sent to the foot communication port.

During the air-conditioning air temperature adjusting operation, as shown in FIG.
1 is fully closed, and the openings of the mixing channel lower inlet 52 and the heater inlet channel 55 are adjusted by the inlet lower door 42 so that the conditioned air that has passed through the cooler 12 is mixed with the mixing channel 33 and the heater inlet channel. And the temperature of the conditioned air is adjusted.

Further, the upper outlet door 43 fully opens the upper mixing passage outlet 53, fully closes the defroster communication passage inlet 56, and the lower outlet door 44 fully closes the lower mixing passage outlet 54 and heats it. The outlet 57 is fully opened.

Further, the foot doors 45, 45 fully open the foot communication passage inlets 58, 58.

Therefore, the conditioned air introduced into the mixing passage 33 from the lower inlet 52 of the mixing passage and the conditioned air heated by the heater through the inlet 55 of the heater inlet flow out through the outlet 57 of the heater. The temperature is adjusted by going back and forth between the passage 35 and the mixing passage 33, and the communication ports 22, 23, 24, 2 are passed through the vent communication passage 37 and the foot communication passages 38, 38.
It is blown to 6.

When it is desired to raise the temperature of the conditioned air blown to the foot communication passages 38, 38 higher than the temperature of the conditioned air blown to the vent communication passage 37, as shown in FIG. The door 41 fully closes the upper mixing passage inlet 51, and the lower door 42 lowers the mixing passage lower inlet 5.
2 and the opening of the heater inflow passage inlet 55 are adjusted, the conditioned air that has passed through the cooler 12 is distributed to the mixing passage 33 and the heater inflow passage 34, and the temperature of the conditioned air is adjusted.

Further, the outlet upper door 43 fully opens the mixing passage upper outlet 53 and fully closes the defroster communication passage inlet 56, and the outlet lower door 44 fully opens the mixing passage lower outlet 54 and heats it. The outlet 57 is almost completely closed.

Further, the foot doors 45, 45 fully open the foot communication passage inlets 58, 58.

Therefore, the distribution amount of the conditioned air to the mixing passage 33 and the heater inflow passage 34 is substantially determined by the opening position of the inlet lower door 42, and the cooling air condition and the hot air conditioning are determined by the opening position of the outlet lower door 44. Wind is the outlet 57 of the heater outlet
Since the amount of air coming and going through the vent communication passage 37 is limited, the foot communication passage 3 is higher than the temperature of the conditioned air sent to the vent communication passage 37.
The temperature of the conditioned air blown to 8, 38 becomes high.

During the cooling operation, the upper entrance 41 of the mixing passage is fully closed by the upper door 41 of the entrance, and the lower door 42 of the entrance is closed.
Thus, the mixing channel lower inlet 52 is fully opened and the heater inflow channel inlet 55 is fully closed, so that all the conditioned air that has passed through the cooler 12 is sent to the mixing channel 33.

Further, the outlet upper door 43 fully opens the mixing passage upper outlet 53, the defroster communication passage inlet 56 is fully closed, and the outlet lower door 44 fully closes the mixing passage lower outlet 54 and heating. The outlet 57 is fully opened.

Further, the foot doors 45, 45 fully open the foot communication passage inlets 58, 58.

Therefore, the conditioned air introduced into the mixing passage 33 from the lower inlet 52 of the mixing passage is blown from the vent communicating passage 37 to the respective communicating openings 22, 23 and 24 through the upper outlet 53 of the mixing passage, and at the same time, the heater outlet passage. Air is blown from the foot communication passages 38, 38 to the foot communication openings 26, 26 through the outlet 57 and the foot communication passage inlets 58, 58.

During the heating operation, the upper entrance 41 of the mixing passage is fully closed by the upper door 41 of the entrance, and the lower door 42 of the entrance is closed.
By fully closing the mixing path lower inlet 52 and fully opening the heater inflow path inlet 55, all the conditioned air that has passed through the cooler 12 is sent to the heater inflow path 34.

The upper outlet door 43 fully opens the upper mixing passage outlet 53, fully closes the defroster communication passage inlet 56, and the lower outlet door 44 fully closes the lower mixing passage outlet 54 and heats it. The outlet 57 is fully opened.

Further, the foot doors 45, 45 fully open the foot communication passage inlets 58, 58.

Therefore, the conditioned air heated by the heater is sent to the vent communication passage 37 through the heater outflow passage outlet 57 and the mixing passage upper outlet 53, and the foot communication passage 38, through the foot communication passage inlets 58, 58. Is blown to 38.

-Diff foot mode- Fig. 8 shows the positions of the respective doors during the air conditioning temperature control operation in the diff foot mode.

In the differential foot mode, conditioned air is blown to the defroster communication port 25 and the foot communication port.

During the air conditioning air temperature adjusting operation, as shown in FIG.
1 is fully closed, and the openings of the mixing channel lower inlet 52 and the heater inlet channel 55 are adjusted by the inlet lower door 42 so that the conditioned air that has passed through the cooler 12 is mixed with the mixing channel 33 and the heater inlet channel. And the temperature of the conditioned air is adjusted.

The upper outlet door 43 fully closes the upper mixing passage outlet 53, the fully open defroster communication passage inlet 56, and the lower outlet door 44 fully closes the lower mixing passage outlet 54 and heating. The outlet 57 is fully opened.

Further, the foot doors 45, 45 fully open the foot communication passage inlets 58, 58.

Therefore, the conditioned air introduced into the mixing passage 33 from the lower inlet 52 of the mixing passage and the conditioned air heated by the heater through the inlet 55 of the heater inlet are connected to the outlet 5 of the heater outlet.
The air conditioning temperature is adjusted by going back and forth between the heater outflow passage 35 and the mixing passage 33 through 7, and the air is blown to the defroster communication passage 36 and the foot communication passages 38, 38.

When it is desired to raise the temperature of the conditioned air sent to the foot communication passages 38, 38 to be higher than the temperature of the conditioned air sent to the defroster communication passage 36, as shown in FIG. The opening of the mixing passage upper inlet 51 and the defroster communication passage inlet 56 is adjusted by the above, the mixing passage lower inlet 52 is fully closed by the inlet lower door 42, and the heater inflow passage inlet 55 is fully opened. The conditioned air that has passed through the heater 12 mixes with the mixing passage 33 and the heater inlet passage 34.
And the temperature of the conditioned air is adjusted.

The outlet upper door 43 fully closes the mixing path upper outlet 53, and the outlet lower door 44 fully closes the mixing path lower outlet 54 and the heater outflow path outlet 57.

Further, the foot doors 45, 45 fully open the foot communication passage inlets 58, 58.

Therefore, the distribution amount of the conditioned air to the mixing passage 33 and the heater inflow passage 34 is substantially determined by the opening position of the entrance upper door 41, and the cold conditioned air and the warm conditioned air come and go through the heater outflow passage outlet 57. Since the amount of air flow is limited, the temperature of the conditioned air blown to the foot communication passages 38, 38 is higher than the temperature of the conditioned air blown to the defroster communication passage 36.

During the cooling operation, the inlet upper door 41 fully closes the mixing path upper inlet 51 and the inlet lower door 42.
Thus, the mixing channel lower inlet 52 is fully opened and the heater inflow channel inlet 55 is fully closed, so that all the conditioned air that has passed through the cooler 12 is sent to the mixing channel 33.

Further, the mixing upper passage outlet 53 is fully closed by the upper outlet door 43, the defroster communication passage inlet 56 is fully opened, and the lower mixing passage outlet 54 is fully closed by the lower outlet door 44 and heating is performed. The outlet 57 is fully opened.

Further, the foot doors 45, 45 fully open the foot communication passage inlets 58, 58.

Therefore, the conditioned air introduced into the mixing passage 33 from the mixing passage lower inlet 52 is introduced into the defroster communication passage inlet 56.
Through the defroster communication passage 36 to the defroster communication port 2
5 is sent to the foot communication passages 38, 38 through the heater outflow passage outlet 57 and the foot communication passages 26, 26.
Be blown to.

During the heating operation, the inlet upper door 41 fully closes the mixing path upper inlet 51, and the inlet lower door 42.
By fully closing the mixing path lower inlet 52 and fully opening the heater inflow path inlet 55, all the conditioned air that has passed through the cooler 12 is sent to the heater inflow path 34.

The outlet upper door 43 fully closes the mixing passage upper outlet 53, the defroster communication passage inlet 56 is fully opened, and the outlet lower door 44 fully closes the mixing passage lower outlet 54. The outlet 57 is fully opened.

Further, the foot doors 45, 45 fully open the foot communication passage inlets 58, 58.

Therefore, the conditioned air heated by the heater is sent from the defroster communication passage 36 to the defroster communication opening 25 through the heater outlet passage 57 and the mixing passage 33, and the foot communication passages 38, 38 The air is blown to the communication ports 26, 26.

-Duct Layout Pattern- FIG. 10 and FIG. 11 show an embodiment of duct piping that connects the communication ports through which the conditioned air is blown according to the above-described modes and the discharge ports into the passenger compartment. .

As shown in FIG. 10, the air conditioning unit 1
No. 0 is mounted on the vehicle, and the center console 60 has a center vent outlet 61a. Further, the center console 60 is provided with a switch panel 66 for controlling the air conditioning unit 10 and an audio unit 67, and a monitor 64 is installed above the center console 60.

The center vent duct 61 disposed inside the center console 60 is provided with two center vents arranged so as to be located on both left and right side surfaces of the unit case 11 when the unit case 11 is mounted on a vehicle. Communication port 2
2 to 2 center vent outlets 61a, 61a arranged on the driver's seat side and the passenger's seat side of the center console 60
Be communicated to.

The side vent duct 62 is provided with the unit case 11 mounted on the vehicle.
The side vent communication port 23 disposed so as to be located on the upper surface of the vehicle is communicated with two side vent outlets 62a, 62a disposed on the driver seat side and the passenger seat side in the front of the vehicle compartment.

(Operation) In the vehicle air conditioner of the present embodiment, each of the doors for opening and closing the mixing path inlet and the outlet is divided into two parts, so that the height dimension of each door can be made small. The size of the entire air conditioner can be reduced.

Since the foot duct communication passage and the foot duct communication port are provided on both left and right side surfaces of the heater outflow passage, the dimension in the vehicle front-rear direction can be reduced.

Since the door above the outlet can close the inlet of the defroster communication passage, it is possible to prevent the conditioned air from leaking to the defroster.

Further, in the cooling operation state, the inlet lower door can close the inlet of the heater inflow passage, while the outlet lower door can close the outlet of the heater outflow passage, so that the warm air that has passed through the heater enters The temperature inside the vehicle can be lowered quickly because this is prevented.

Further, in the temperature control operation state, since the upper entrance of the mixing passage can close the upper entrance of the mixing passage, the lower door of the exit can close the lower exit of the mixing passage, so that a sufficient length of the mixing passage can be ensured. It is possible to blow conditioned air at a temperature.

In the cooling maximum air volume state, the length of the mixing passage can be shortened while widening the flow passage cross-sectional area of the mixing passage by switching to the vent mode even if another blowing mode is selected. It can be greatly reduced and the maximum air volume can be increased. As a result, the temperature inside the vehicle compartment can be quickly reduced.

Since the foot duct communication path is branched from the heater outflow path, it is possible to heat the feet without lowering the temperature of the conditioned air.

By disposing the above-mentioned duct in the vehicle air conditioner of the present embodiment, the height of the upper part of the center console can be lowered in the state of being mounted on the vehicle.

[Brief description of drawings]

FIG. 1 is a perspective view of an external appearance of a main part of an air conditioner showing an embodiment of the present invention.

FIG. 2 is a cross-sectional perspective view taken along the line AA in FIG. 1 showing an embodiment of the present invention.

FIG. 3 is a cross-sectional view showing an air-conditioning air distribution path in a vent mode of the air conditioner according to the embodiment of the present invention.

FIG. 4 is a cross-sectional view showing a defroster mode conditioned air distribution path of an air conditioner according to an embodiment of the present invention.

FIG. 5 is a cross-sectional view showing a conditioned air distribution path in a foot mode of the air conditioner according to the embodiment of the present invention.

FIG. 6 is a cross-sectional view showing an air conditioning air flow passage in a vent foot mode of the air conditioner according to the embodiment of the present invention.

FIG. 7 is a cross-sectional view showing an conditioned air distribution path in another mode of the vent foot mode of the air conditioner according to the embodiment of the present invention.

FIG. 8 is a cross-sectional view showing an air conditioning air flow passage in a differential foot mode of the air conditioner according to the embodiment of the present invention.

FIG. 9 is a cross-sectional view showing an conditioned air distribution path of another mode of the differential foot mode of the air conditioner according to the embodiment of the present invention.

FIG. 10 is a cross-sectional view of a center console section when an air conditioner according to an embodiment of the present invention is installed in a vehicle.

FIG. 11 is a perspective view showing an aspect of a center vent duct and a side vent duct when an air conditioner showing an embodiment of the present invention is mounted on a vehicle.

FIG. 12 is a sectional view of a main part of a conventional air conditioner.

FIG. 13 is a cross-sectional view of a center console section when a conventional air conditioner is mounted on a vehicle body.

[Explanation of symbols]

10 Air conditioning unit 11 unit case 12 Cooler 13 heater 31 Blower air introduction path 32 hot / cold distribution channel 33 mixing path 34 Heater inflow path 35 Heater outflow path 37 Vent communication passage 41 entrance upper door 42 entrance lower door 43 Exit upper door 44 Exit lower door 51 Upper entrance of mixing road 52 Lower entrance of mixing channel 53 Mixing road upper exit 54 Mixing path lower exit 55 Heater inlet 57 Heater outlet outlet

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Watanabe Spring             Carso 5-24-15 Minamidai, Nakano-ku, Tokyo             Nick Kansei Co., Ltd. F-term (reference) 3L011 BH01 BJ00 CL00 CP00

Claims (6)

[Claims] 1. A unit case (11) in which an air conditioning unit (10) is housed, a cooler (12) for cooling the conditioned air and a heater (13) for heating the conditioned air, A blast air introduction path (31) through which the conditioned air introduced into the unit case (11) is blown to the cooler (12), and a conditioned air that has passed through the cooler (12) is divided into two A distribution channel (32), a heater inflow channel (34) through which one of the conditioned air distributed in the hot and cold distribution channel (32) is sent to the heater (13), and a distribution in the hot and cold distribution channel (32) A mixing path (33) in which the other conditioned air that has been conditioned is mixed with the conditioned air that has passed through the heater (13).
And a vent communication path (37) through which the conditioned air that has exited the mixing path (33) is sent to the vent duct, and a heater outflow where the conditioned air that has passed through the heater (13) is sent to the mixing path (33) The inlet of the channel (35) and the mixing channel (33) through which the other conditioned air distributed in the hot / cold distribution channel (32) is blown is the upper inlet of the mixing channel (51).
And the entrance upper door (41) and the entrance lower door (4) of the swinging type cantilever door which is opened and closed by dividing the opening into the mixing path lower entrance (52).
2) and the outlet of the mixing passage (33) through which the conditioned air in the mixing passage (33) is blown to the vent communication passage (37).
3) and a lower outlet (54) of the mixing path, which is provided with an upper outlet door (43) and a lower outlet door (44) of a rotatable cantilever door that are opened and closed in two, and the lower inlet door (42) is mixed. The opening of the inlet (55) of the heater inflow passage (34) is adjusted while adjusting the opening of the lower passage inlet (52), and the lower outlet door (44) controls the opening degree of the lower mixing passage outlet (54). An air conditioner for a vehicle, which is arranged so as to adjust an opening degree of an outlet (57) of a heater outflow passage (35). 2. The vehicle air conditioner according to claim 1, wherein in the cooling maximum air volume operation state, the inlet upper door (41) is the mixing passage upper inlet (5).
1) fully open, and the outlet lower door (44) is connected to the mixing passage lower outlet (5).
4) is fully opened, the outlet (57) of the heater outflow passage (35) is fully closed, and the inlet lower door (42) is the mixing passage lower inlet (5).
2) is fully opened while the inlet (55) of the heater inflow path (34) is fully closed, and the outlet upper door (43) is the mixing path upper outlet (5).
3) A vehicle air conditioner, which is arranged so as to be fully opened. 3. A unit case (11) in which the air conditioning unit (10) is housed, a cooler (12) for cooling the conditioned air and a heater (13) for heating the conditioned air are housed, A blast air introduction path (31) through which the conditioned air introduced into the unit case (11) is blown to the cooler (12), and a conditioned air that has passed through the cooler (12) is divided into two A distribution channel (32), a heater inflow channel (34) through which one of the conditioned air distributed in the hot and cold distribution channel (32) is sent to the heater (13), and a distribution in the hot and cold distribution channel (32) A mixing path (33) in which the other conditioned air that has been conditioned is mixed with the conditioned air that has passed through the heater (13).
And a vent communication path (37) through which the conditioned air that has exited the mixing path (33) is sent to the vent duct, and a heater outflow where the conditioned air that has passed through the heater (13) is sent to the mixing path (33) The inlet of the channel (35) and the mixing channel (33) through which the other conditioned air distributed in the hot / cold distribution channel (32) is blown is the upper inlet of the mixing channel (51).
And the lower entrance (4) of the pivoting cantilever door that opens and closes in two at the lower entrance (52) of the mixing path.
2) and the outlet of the mixing passage (33) through which the conditioned air in the mixing passage (33) is blown to the vent communication passage (37).
3) and a lower outlet (54) of the mixing path, which is provided with an upper outlet door (43) and a lower outlet door (44) of a rotatable cantilever door that are opened and closed in two, and the lower inlet door (42) is a mixture. The opening of the inlet (55) of the heater inflow passage (34) is adjusted while adjusting the opening of the lower passage inlet (52), and the mixing passage lower outlet (54) and the heater outlet passage (3) are adjusted.
The outlet (57) of 5) is arranged so as to be adjacent, and in the cooling maximum air volume operation state, the inlet upper door (41) is connected to the mixing passage upper inlet (5).
1) fully open, and the outlet lower door (44) is connected to the mixing passage lower outlet (5).
4) is fully opened, the outlet (57) of the heater outflow passage (35) is fully closed, and the inlet lower door (42) is the mixing passage lower inlet (5).
2) is fully opened while the inlet (55) of the heater inflow path (34) is fully closed, and the outlet upper door (43) is the mixing path upper outlet (5).
3) is arranged so as to be fully opened, and the inlet upper door (41) is connected to the mixing path upper inlet (5).
1) is fully closed, the outlet lower door (44) is connected to the mixing passage lower outlet (5).
A vehicle air conditioner characterized in that 4) is fully closed. 4. The vehicle air conditioner according to claim 1, wherein the foot duct communication port is connected to the foot duct.
And a foot duct communication path (38) through which the conditioned air is distributed from the heater outflow path (35) to the foot duct communication port (26)
And a foot door (45) for opening and closing the inlet (58) of the foot duct communication path (38). 5. The vehicle air conditioner according to claim 4, wherein the air conditioner unit (10) is mounted on the vehicle, and foot duct communication passages (38) are provided on both left and right sides of the heater outflow passage (35). And a foot duct communication port (26) are provided. 6. The vehicle air conditioner according to claim 1, wherein the defroster duct communication port (25) connected to the defroster duct and the conditioned air are blown to the defroster duct communication port (25). And a defroster communication passage (36), the outlet upper door (43) is provided with the mixing passage upper outlet (5).
The defroster communication passage (36) while adjusting the opening of 3)
An air conditioner for a vehicle, which is arranged so as to adjust an opening degree of an entrance (56) of the vehicle.