JP2001080346A - Vehicular air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular air conditioner capable of maintaining the amenity of a front seat occupant irrespective of whether air conditioning air from an instrument panel outlet is ON or OFF while preventing mutual interference of the air conditioning air as much as possible by changing a blowing direction of a roof outlet so that the air conditioning air from the roof outlet blows on a side of the front seat occupant in opposite direction to the instrument panel outlet when the air conditioning air from the instrument panel outlet is ON and the air conditioning air from the roof outlet blows on the whole body of the front seat occupant when the air conditioning air from the instrument panel outlet is OFF. SOLUTION: This vehicular air conditioner is provided with a roof outlet 17 arranged on a roof 3 and blowing air conditioning air to a front seat occupant from the rear, and instrument panel outlets 15 arranged on side parts of an instrument panel 7 and blowing the air conditioning air to the front seat occupant from the front, but with no instrument panel center outlet in an instrument panel center part. It is provided with a control means changing the blowing method of the roof outlet 17 in correspondence to ON and OFF of the air conditioning air from the instrument panel outlets 15 and blowing the air conditioning air on a side of the occupant in opposite direction to the instrument panel outlets 15 or in the whole of the occupant.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof air outlet which is arranged on a roof and blows air-conditioned air from the rear of a front seat occupant to a front seat occupant, and which is arranged on a side portion of an instrument panel from a front of the front seat occupant. The present invention relates to a vehicle air conditioner having an instrument panel outlet for blowing air conditioning air to a front seat occupant.

[0002]

2. Description of the Related Art Conventionally, an air conditioner for a vehicle configured to perform air conditioning by providing a roof air outlet in a roof portion of a vehicle is disclosed in, for example, JP-A-9-226360 and JP-A-6-115345. And Japanese Patent Application Laid-Open Nos. 6-87325 and 9-30241.

[0003] Japanese Patent Application Laid-Open No. 9-226360 discloses a technique in which a water sprayer is rotatably mounted on a roof portion, and mist is blown out to all seats by operating the water sprayer, thereby performing cooling using latent heat of vaporization. is there.

Japanese Patent Application Laid-Open No. HEI 6-115345 discloses a front air conditioning unit provided inside an instrument panel and a rear air conditioning unit provided below a rear tray board. The air conditioning unit on the side is connected to the instrument panel outlet, the rear air conditioning unit is connected to the ceiling duct extending forward along the roof, and both the instrument panel outlet and the roof outlet of the ceiling duct are used for cooling. It is configured such that cold air is discharged, and warm air blown from the instrument panel outlet is sucked from the roof outlet and the rear inlet of the rear air conditioning unit during heating.

[0005] Japanese Unexamined Patent Publication No. 6-87325 discloses a roof air outlet formed above a head of a front seat occupant, and conditioned air is blown through a center pillar and a roof side duct. To perform spot air conditioning (intensive blowout) from the roof outlet.

[0006] Japanese Unexamined Patent Publication No. 9-30241 discloses a one-box car in which a front air conditioner unit is provided below an instrument panel while a second air conditioner is provided.
A rear air conditioner unit is installed on the floor panel under the seat,
The front air conditioner unit is connected to the instrument panel outlet, while the rear air conditioner unit is connected to a pillar duct, a roof duct, and a side roof duct, so that the wind blown out from the instrument panel outlet and the roof duct forward from the roof outlet The air blown from the instrument panel is made to collide with the air blown out of the vehicle so that the cool air from the instrument panel outlet does not escape to the rear of the vehicle compartment.

As described above, in the vehicle having the roof outlet provided on the roof portion, the conditioned air O from the instrument panel outlet is provided.
If the conditioned air is uniformly blown out from the roof outlet at the time of N (at the time of discharging the conditioned air), the conditioned air interferes with each other and the flow of the conditioned air is disturbed, so that the comfort of the occupant is hindered. There was a problem.

[0008]

According to the first aspect of the present invention, when the conditioned air from the instrument panel outlet arranged on the side of the instrument panel is turned on, the conditioned air from the roof outlet is changed to the front seat. By hitting the occupant on the opposite side of the instrument panel outlet, and when the conditioned air from the instrument panel outlet is OFF, by changing the blowing direction of the roof outlet so that the conditioned air from the roof outlet is applied to the entire front seat occupant, It is an object of the present invention to provide a vehicle air conditioner capable of maintaining the comfort of a front seat occupant regardless of whether the conditioned air is ON or OFF from an instrument panel outlet while preventing mutual interference of conditioned air as much as possible. And

According to a second aspect of the present invention, a roof outlet for blowing conditioned air from a roof portion to a front seat occupant and a rear seat occupant and an instrument panel outlet provided on a side portion of an instrument panel are provided. When the air conditioning air from the instrument panel outlet is ON, only the amount of the roof outlet to the front seat occupant is regulated while maintaining the outlet for the rear seat occupant of the roof outlet (the regulation for reducing the amount of outlet, Air-conditioning air from the instrument panel outlet while preventing collision interference of air-conditioning air.
It is an object of the present invention to provide a vehicle air conditioner that can maintain the comfort of a front seat occupant and a rear seat occupant in any of FFs.

According to a third aspect of the present invention, in addition to the object of the first or second aspect, when the instrument panel outlet is set to a spot air-conditioning outlet (local air-conditioning outlet), the air-conditioning The possibility of collision increases, and turbulence is likely to occur in the airflow.However, the direction of the roof air outlet changes or the front seat occupant changes according to the air-conditioning air blowing from the instrument panel air outlet (spot air-conditioning air outlet). An object of the present invention is to provide a vehicle air conditioner that can prevent the above-described turbulence of the airflow by regulating the amount of air blown to the vehicle.

According to a fourth aspect of the present invention, in addition to the object of the first aspect, when the conditioned air from the instrument panel outlet is turned on, the amount of air blown from the roof outlet is increased. It is another object of the present invention to provide a vehicle air conditioner that can further improve the comfort of a passenger.

According to a fifth aspect of the present invention, in addition to the object of the second aspect, when air-conditioning air is turned on from the instrument panel outlet, air is blown out from the roof outlet to the front seat occupant. An object of the present invention is to provide a vehicle air conditioner that can reliably prevent airflow turbulence by prohibiting the air conditioner.

According to a sixth aspect of the present invention, in addition to the object of the first aspect, a plurality of outlets for a front occupant are provided in a roof outlet, and by switching these outlets, The configuration in which the conditioned air is applied to the side opposite to the occupant's instrument panel outlet or to the entire occupant allows the conditioned air to be applied from the side opposite to the occupant's instrument panel outlet and the conditioned air to be applied to the entire occupant. It is an object of the present invention to provide an air conditioner for a vehicle which can easily achieve the above by switching the air outlet, and can blow the air conditioned air from the instrument panel air outlet according to ON / OFF by selecting the air outlet. I do.

[0014]

According to a first aspect of the present invention, there is provided a roof outlet which is disposed on a roof and blows air-conditioned air of a front passenger from behind to a front passenger, and a side portion of an instrument panel. And an instrument panel outlet that blows air conditioning air from the front of the front seat occupant to the front seat occupant, and does not have a central instrument panel outlet in the center of the instrument panel. An air conditioner for a vehicle including a control means for changing the blowing method of the roof air outlet in accordance with ON or OFF of the air-conditioning air and applying air-conditioning air to the side opposite to the occupant's instrument panel outlet or to the entire occupant. Features.

According to a second aspect of the present invention, there is provided a roof outlet which is disposed on a roof and blows conditioned air from behind a front seat occupant to a front seat occupant or from the front of a rear seat occupant to a rear seat occupant; An instrument panel outlet that is disposed on a side portion of the instrument panel and blows out the conditioned air of the front seat occupant from the front of the front seat occupant, and that is not provided with an instrument panel central outlet at a central portion of the instrument panel, It is a vehicle air conditioner provided with a regulation means for regulating only the amount of air blown out from the roof air outlet to a front seat occupant in response to the ON of the conditioned air from the instrument panel air outlet.

According to a third aspect of the present invention, in addition to the configuration of the first or second aspect of the present invention, there is provided a vehicle air conditioner in which the instrument panel outlet is set to a spot air conditioner outlet. And

According to a fourth aspect of the present invention, in addition to the configuration of the fourth aspect of the present invention, when the air-conditioning air from the instrument panel outlet is turned on, an increasing means for increasing the blowing amount of the roof outlet. It is a vehicle air conditioner provided with.

According to a fifth aspect of the present invention, in addition to the configuration of the second aspect of the present invention, the restricting means is a vehicle air conditioner for prohibiting air from being blown out from a roof air outlet to a front passenger. There is a feature.

According to a sixth aspect of the present invention, in addition to the configuration of the first aspect, the roof outlet has a plurality of outlets for a front passenger, and the plurality of outlets are switched. Thus, the vehicle air conditioner is configured to apply conditioned air to the side opposite to the occupant instrument panel outlet or to the entire occupant.

[0020]

According to the first aspect of the present invention, the roof outlet disposed on the roof blows out conditioned air from behind the front occupant (the roof portion) to the front occupant, thereby providing the instrument. Side of the instrument panel (side in the vehicle width direction)
The instrument panel outlet arranged at the outlet blows conditioned air to the front seat occupant from the front of the front seat occupant, but when the conditioned air from the instrument panel outlet is turned on, the conditioned air from the roof outlet is turned on. To the opposite side of the front panel occupant's instrument panel outlet, and when the conditioned air from the instrument panel outlet is OFF, change the direction of the roof outlet outlet so that the conditioned air from the roof outlet is applied to all front seats. Let it.

As a result, while the mutual interference of the conditioned air is prevented as much as possible, the ON / OFF of the conditioned air from the instrument panel outlet is performed.
In any case, there is an effect that the comfort of the front passenger can be maintained. When the air conditioning wind from the instrument panel air outlet, where a particularly strong air conditioning effect (mainly the cooling effect) is desired, is turned on, the air conditioning air from the roof air outlet is applied to the opposite side of the front panel occupant's instrument panel air outlet. Therefore, there is an effect that sufficient comfort can be secured.

According to the second aspect of the present invention,
The roof outlet located on the roof is behind the front passenger.
The air-conditioning air is blown out from the (roof part) to the front seat occupant, and the air-conditioning air is blown out from the front (roof part) of the rear seat occupant to the rear seat occupant.
The instrument panel outlet located at the side of the instrument panel (the side in the vehicle width direction) blows conditioned air from the front of the front seat occupant to the front seat occupant. When the air-conditioning wind is turned on, only the amount of air blown out from the roof outlet to the front seat occupant is restricted.

As described above, when the conditioned air from the instrument panel outlet is turned on, only the amount of the roof outlet that is blown out to the front seat occupant is regulated while maintaining the blowout to the rear seat occupant. It is possible to prevent the conditioned air from the outlet from colliding with the conditioned air from the roof outlet, and the front and rear occupants can be turned on or off regardless of whether the conditioned air from the instrument panel outlet is ON or OFF. There is an effect that the comfort can be maintained.

According to the third aspect of the present invention,
In addition to the effects of the first or second aspect of the present invention, the instrument panel outlet described above is set as a spot air-conditioning outlet. In other words, if the instrument panel outlet is set as a spot air-conditioning outlet, the possibility of air-conditioning air collision increases, and airflow turbulence tends to occur, but air-conditioning air blowing from the instrument panel outlet (spot air-conditioning outlet) Therefore, since the blowing direction of the roof outlet is changed or the blowing amount to the front seat occupant is regulated, spot air conditioning can be achieved while preventing the above-described turbulence of the airflow.

According to the invention described in claim 4 of the present invention,
In addition to the effect of the first aspect of the present invention, when the air conditioning air from the instrument panel outlet is turned on, the increasing means increases the blowout amount of the roof outlet. As described above, when the conditioned air from the instrument panel air outlet that the occupant desires a strong air conditioning effect is ON, the amount of air blown from the roof air outlet is increased by the increasing means, so that the occupant's comfort can be further improved. effective.

According to the invention described in claim 5 of the present invention,
In addition to the effect of the second aspect of the present invention, when the conditioned air is turned on from the instrument panel outlet, the above-described restricting means prohibits the front seat occupant from blowing off from the roof outlet. There is an effect that can be.

According to the invention described in claim 6 of the present invention,
In addition to the effect of the first aspect of the present invention, a plurality of air outlets for the front occupant are provided in the roof air outlet, and by switching these air outlets, air conditioning is performed on the opposite side of the occupant instrument panel outlet or on the entire occupant. Since it is configured to blow air, it is easy to switch between a plurality of air outlets of the roof air outlet in a mode where air conditioning air is blown from the side opposite to the occupant's instrument panel air outlet and an air conditioner air is blown to the entire occupant. By selecting the outlet, there is an effect that the conditioned air can be blown out from the roof outlet in accordance with ON / OFF of the conditioned wind from the instrument panel outlet.

[0028]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. The drawings show a vehicle air conditioner. In FIGS. 1, 2 and 3, 1 is a front panel, 2 is a center pillar,
3 roof, 4,5 front seat, 6 rear seat,
Reference numeral 7 denotes an instrument panel. At the center of the instrument panel 7, a display device 8 and an audio device 9 as on-vehicle electrical components are disposed.

As shown in FIG. 1, an air conditioner unit 10 for cooling and heating the interior of the vehicle is arranged inside the instrument panel 7, and a display device 8 and an audio device 9 which are vertically arranged at the center of the instrument panel 7 are arranged. A central instrument panel suction port 11 for sucking air from the passenger compartment and guiding the air to the above-described air conditioner unit 10 is formed between the instrument panel central suction port 11 and the air conditioner unit 1.
The suction path 12 connecting between the audio device 9 and the suction device 12 is arranged along the display device 8 and the audio device 9 as shown in FIG.

The vehicle air conditioner of this embodiment does not have a central instrument panel outlet at the center of the instrument panel. In other words, there is a high possibility that a navigation device, an automatic toll collection system (so-called ETC) and other various electronic devices will be installed in the center of the instrument panel, and it is not possible to secure enough space to provide an outlet. There is no central instrument panel outlet in the section.

As shown in FIGS. 3 and 4, a defroster outlet 14 is formed so as to face the lower end of the windshield 13 of the instrument panel 7 and a width direction of the instrument panel 7 in the vehicle width direction. Spot air-conditioning outlets 15 and 15 serving as instrument panel outlets for blowing air-conditioning air to the front seat occupant from diagonally forward of the front seat occupant at both side portions, that is, portions where there is room in space at both left and right end portions.
Are disposed above the left and right spot air conditioning outlets 15, 15, as shown in FIG.
Has been arranged.

On the other hand, as shown in FIGS. 1, 2 and 3, at the center of the roof 3 described above, from the upper rear part of the front passenger to the front passenger, and from the upper front part of the rear passenger to the rear passenger. A roof side unit 17 (roof outlet) that blows out conditioned air is arranged.

The roof-side unit 17 has a pair of left and right roof air outlets 18 for blowing air-conditioned air from the rear upper portion of the left and right front seat occupants to the respective front seat occupants. , And a pair of left and right roof outlets 19, 19 for blowing air-conditioned air to the respective rear passengers.

In FIG. 3, reference numeral 20 denotes an ashtray provided below the instrument panel central suction port 11, reference numeral 21 denotes a cigar lighter provided on the side of the ashtray 20, and reference numeral 22 denotes a steering wheel.

FIGS. 5 and 6 are system diagrams showing the overall structure of the air conditioner. This air conditioner is composed of various ducts forming an air passage 23 and a main blower 24 forming a blowing means.
And a sub blower 25, and an evaporator 26 and a heater core 27 which constitute a temperature adjusting means.

The above-mentioned main blower 24 is arranged inside the instrument panel 7. The downstream side of the inside / outside air switching box 28 is connected to the suction side of the main blower 24. The upstream side of the inside / outside air switching box 28 is branched into two, one opening toward the passenger compartment and the other opening outside the vehicle. The inside / outside air switching box 28
Is provided with an inside / outside air door 29. By operating the inside / outside air door 29, the intake air of the main blower 24 is switched between inside air and outside air.

One end of a main duct 30 is connected to the discharge side of the main blower 24 described above. An evaporator 26 and a heater core 27 are provided in the main duct 30. The air discharged from the main blower 24 is cooled by the evaporator 26 and heated by the heater core 27 to generate conditioned air (conditioned air).

The above-described evaporator 26 is provided over the entire cross section of the main duct 30, and is connected to a compressor 31 (see FIG. 10) by a refrigerant pipe. The evaporator 26 exchanges heat between the air discharged from the main blower 24 and the refrigerant to cool the air.
On the other hand, the above-described heater core 27 is provided on a part of the cross section of the main duct 30 at a position downstream of the evaporator 26, and is configured such that the coolant of the engine flows through the inside of the heater core 27. This heater core 2
Numeral 7 is for exchanging heat between the air discharged from the main blower 24 and the cooling water to heat the air. Further, downstream of the heater core 27, a film type air mix door 3 is provided.
2 are provided. And this air mix door 3
2 adjusts the amount of air passing through the heater core 27, thereby adjusting the temperature of the conditioned air.

The above-mentioned main duct 30 is connected to the heater core 2
On the downstream side of 7, it communicates with a plurality of outlets formed in the instrument panel 7. That is, the instrument panel 7 includes the front windshield 13
Defroster outlet 1 that blows out conditioned air toward
4, the above-mentioned spot air-conditioning outlet 15 which opens to the front of the instrument panel 7 at the left and right positions in the vehicle width direction and blows out conditioned air toward the front passenger, and the foot which blows out conditioned air toward the feet of the occupant. An outlet 33 is formed. The main duct 30 communicates with the defroster outlet 14, the spot air conditioning outlet 15, and the foot outlet 33, respectively.

The above-described defroster outlet 14 is provided with a door 34.
The foot outlet 33 includes a door 35, which is configured to be openable and closable. The above-described spot air conditioning outlet 15 includes a spot outlet door 36.

One end of a floor duct 37 is connected to the main duct 30 described above. This floor duct 37
Extends from the front of the cabin toward the center of the cabin along the floor, and has a door 38 at the connection with the main duct 30.
And is configured to be able to communicate with and shut off from the main duct 30. The floor duct 37 is formed with a floor outlet 39 that opens to the side of the front seats 4 and 5. The floor outlet 39 has a door 40 and is configured to be openable and closable. The main duct 30 and the floor duct 37 constitute a main passage.

At least one of the left and right sides of the passenger compartment
A pillar duct 41 is provided extending along the center pillar 2 in the vertical direction of the vehicle compartment. This pillar duct 41
This constitutes a pillar passage. On the other hand, a downstream portion of the floor duct 37 is connected to a lower end of the pillar duct 41.

A sub-blower 25 is provided at the rear end of the center console provided in the passenger compartment. One end of a sub suction duct 42 is connected to the suction side of the sub blower 25. The other end of the sub-suction duct 42 is connected between the floor outlet 39 of the floor duct 37 and a connection portion to the pillar duct 41, and forms a sub-suction passage. A door 43 is provided at the other end of the sub suction duct 42. When the door 43 is closed (see FIG. 5), the sub suction duct 42 and the floor duct 37 are closed.
The sub suction duct 42 is configured to communicate with the pillar duct 41 via a part of the floor duct 37 in an open state (see FIG. 6). Further, the above-described sub-suction duct 42 has a sub-suction port 4 opening at the center of the vehicle compartment.
4 are formed. The sub suction port 44 includes an inside air door 45 and is configured to be openable and closable.

One end of a sub discharge duct 46 is connected to the discharge side of the sub blower 25. The other end of the sub-discharge duct 46 is connected to the suction side of the main blower 24 to form a sub-discharge passage.

Here, the air conditioner unit 10 of the air conditioners shown in the system diagrams of FIGS. 5 and 6 is laid out in the instrument panel 7 as shown in FIG. The suction duct 47 is connected to a part of the discharge duct 46 by a suction duct 47.
A central suction door 48 for the instrument panel is attached to the downstream part so as to be openable and closable.

During cooling, each door 34, 35, 3
8, 40, 43, 45, and 48 are switched as shown in FIG. 5, and the conditioned air (cool air) heat-exchanged by the evaporator 26 is passed from the air passage 23 to each element 37, as shown by the arrow in FIG.
Air discharged from the roof outlets 18 and 19 through the sub-suction ports 41 and 17 and air sucked from the sub-suction port 44 is passed through the respective elements 42 and 2
5 and 46, the air is returned to the suction side of the main blower 24, and the air sucked from the instrument panel center suction port 11 (see FIGS. 3 and 4) is returned to the suction side of the main blower 24 through the respective elements 12 and 47. Return.

When the spot outlet door 36 is opened, cool air is discharged from the left and right spot air conditioning outlets 15 and 15 toward the front passenger. On the other hand, during heating, each door 34, 3
5, 36, 38, 40, 43, 45, and 48 are switched as shown in FIG.
(Warm air) flows from the air passage 23 to the defroster outlet 14, the foot outlet 33, and the floor outlet 3 as shown by arrows in FIG.
9 and the roof outlet 1 of the roof side unit 17
The air sucked from 8, 19 is supplied to each element 41, 42, 25,
Return to the suction side of the main blower 24 via 46.

Therefore, during the cooling shown in FIG. 5, a blowing direction is formed which flows downward from the roof outlet 18 on the roof side toward the sub-suction port 44 as shown by the dotted arrow x in FIG. During the heating shown in the figure, a blowing direction is formed that flows upward from the floor outlet 39 on the floor side to the roof outlet 18 from the bottom as shown by the dotted arrow y in FIG. Is done.

Next, referring to FIGS. 2, 7, 8, and 9, a specific structure of the above-described roof-side unit 17 will be described. The roof-side unit 17 has a housing 50 having a hollow inside, and is connected to the pillar duct 41 through an opening 51 and a communication duct 52 (see FIG. 2).

On the front side (see arrow F) of the housing 50, a roof air outlet 1 for blowing air-conditioned air to the front seat occupant.
On the rear side (see arrow R), roof outlets 19, 19 for blowing air-conditioned air to rear passengers are formed. During heating, these roof outlets 18,
Reference numeral 19 denotes a suction port for sucking air in the vehicle compartment.

The roof outlet 18 on the front side is air-conditioned.
A plurality of upper and lower main outlets 18a for applying the (cold air) to the entire front seat occupant, and a plurality of auxiliary outlets 18b for locally applying the conditioned air to the neck portion of the front seat occupant opposite to the spot air conditioning outlet 15 The air outlets 18a and 18b are provided.

The main outlet 18 is provided in the housing 50.
When the main outlet 18a is opened by the roof outlet door 53 as shown in FIG. 7, the conditioned air a is supplied to the entire front seat occupant from both outlets 18a and 18b. When the main outlet 18a is closed by the roof outlet door 53 as shown in FIG. 8, the conditioned air b is blown from the sub outlet 18b to the neck of the front seat occupant on the side opposite to the spot air conditioning outlet 15. It is configured to be spotted.

The rear roof outlet 19 is configured to blow the conditioned air c from the upper front of the rear passenger to the entire rear passenger. Further, another roof outlet door 54 is provided between the opening 51 opened in the housing 50 and the roof outlet 18 on the front side so as to be openable and closable. When the space between the roof air outlet 51 and the roof air outlet 18 is cut off, the air-conditioning winds a and b are prevented from being blown out from the front air outlet 8 to the front passenger.

FIG. 10 shows a control circuit of the vehicle air conditioner. The CPU 60 includes a signal from a solar radiation sensor 55 for detecting the amount of solar radiation, a signal from an outside air temperature sensor 56 for detecting the outside air temperature, and a temperature in the vehicle compartment. A signal from a room temperature sensor 57 for detecting the temperature, a signal from a compressor operation switch 58 for driving the compressor (compressor) 31, a signal from an operation switch 59 for setting a blow mode, a blow temperature, a blow air volume, and the like. The compressor 31, the main blower 24, the sub-blower 25, the inside / outside air door 29, the air mixing door 32, and the doors are operated in accordance with a program stored in the ROM 61 based on a signal from the spot blowing switch 16 for opening the spot blowing door 36. 34,3
5, 38, 40, 43, 45, central instrument panel suction door 48, spot outlet door 36, roof outlet door 5
3 and 54, and the RAM 62 stores necessary data.

Here, the CPU 60 turns on the conditioned air (see arrow d in FIG. 1) from the spot air-conditioning outlet 15.
(Blowout) or OFF, the blowing direction of the roof air outlet 18 is changed, and when the air-conditioning air from the spot air-conditioning air outlet 15 is turned on, the conditioned air b (FIG. 8) Ref.) And spot air conditioning outlet 15
Control means (see the CPU 60 itself) for controlling the conditioned air a (see FIG. 7) to the entire front seat occupant when the conditioned air from the vehicle is turned off, and the conditioned air from the spot air conditioning outlet 15 is turned on. When the air-conditioning air from the spot air-conditioning air outlet 15 is ON, a restricting means (see the 22nd step S22 in the flowchart shown in FIG. It also serves as an increasing means for increasing the blowout amount of the roof outlet 18 (see the 23rd step S23 in the flowchart shown in FIG. 11).

The operation of the thus configured vehicle air conditioner will be described in detail below with reference to the flowchart shown in FIG. In the first step S1, the CPU 60 detects the amount of solar radiation based on the output from the solar radiation sensor 55, and in the next second step S2, the CPU 60 detects the external temperature based on the output from the external temperature sensor 56.

Next, in a third step S3, the CPU 60 detects the temperature in the vehicle compartment from the output from the vehicle room temperature sensor 57,
In the next fourth step S4, the CPU 60 detects ON / OFF of the operation switch 58 based on the output from the compressor operation switch 58. Next, in a fifth step S5, C
The PU 60 detects settings such as a blow mode, a blow temperature, and a blow air volume based on an output from the operation switch 59.

Next, in a sixth step S6, the CPU 60 determines whether or not the compressor operation switch 58 is ON.
When the determination is O, the process proceeds to the next seventh step S7, while
When the ES is determined, the process proceeds to another eighth step S8.

In the above-described seventh step S7, the CPU 60 turns off (inactivates) the compressor 31 in response to the turning-off of the compressor operation switch 58, and in the above-mentioned eighth step S8, the CPU 60
In response to ON of 8, the compressor 31 is turned ON (operated). When the compressor 31 is driven, the evaporator 26 shown in FIG. 5 acts as an evaporator and takes heat from the surroundings.

Next, in a ninth step S9, the CPU 60 calculates the control position of the air mix door 32 based on the various detection conditions described above, and operates the air mix door 32. The film type air mix door 32 is shown in FIGS.
As shown in the above, the film is formed in a closed loop shape, and is guided and moved by a plurality of guide rollers, and a plurality of openings each having a different area of the opening are formed in the above-described film. The temperature of the conditioned air can be controlled by driving with a reversible motor or the like and controlling the amount of air passing through the heater core 27 by the air mix door 32. However, instead of the film type air mix door 32, An air mix door having a switching damper structure may be used.

Next, in a tenth step S10, the CPU 60
Calculates the blowing mode based on the various detection conditions described above, and opens and closes each door so as to be in the rendered blowing mode.

Next, in an eleventh step S11, the CPU 60
Calculates the inside / outside air mode based on the various detection conditions described above, and operates the inside / outside air door 29 so as to be in the calculated mode.

Next, in a twelfth step S12, the CPU 60
Calculates the blown air volume based on the various detection conditions described above,
The main blower 24 or both blowers 24 and 25 are operated so that the calculated blowing air volume is obtained.

Next, in a thirteenth step S13, the CPU 60 determines the degree of opening of the instrument panel central suction door 48.
Determines the blowing direction. Thus, the blowing direction is from bottom to top
At the time of heating mainly (see arrow y in FIG. 6), the process proceeds to the next fourteenth step S14, in which the blowing direction is from top to bottom.
During cooling mainly (see arrow x in FIG. 6), the process proceeds to another fifteenth step S15.

In the above-described fourteenth step S14, the CPU 6
0 closes the instrument panel central suction door 48 to prevent air from being circulated in the area where there is no occupant during heating. On the other hand, in the above-mentioned fifteenth step S15, the CPU 60 determines whether or not the spot blowing switch 16 is ON, and YES
When the determination is made, the process proceeds to the sixteenth step S16, and when the determination is NO, the process proceeds to another seventeenth step S17.

In the above-described sixteenth step S16, the CPU 6
0 indicates that the spot outlet switch 16 is ON (for example, when strong cooling is required), the instrument panel central suction port 11
It is desired that the suction volume from the nozzle be large, and accordingly, the instrument panel center suction door 48 is fully opened.

In the above-described seventeenth step S17, the CP
U60 opens the instrument panel central suction door 48 in response to the OFF of the spot blowing switch 16 (for example, when normal cooling is sufficient).

Next, in an eighteenth step S18, the CPU 60
Determines whether the spot blowing switch 16 is ON,
When the determination is NO, the process proceeds to the nineteenth step S19, and YES
When the determination is made, the process proceeds to another twenty-first step S21.

In the above-mentioned nineteenth step S19, the CPU 6
0, the spot outlet door 36 is closed, and in the next twentieth step S20, the CPU 60 opens the roof outlet door 53, and as shown in FIG.
From 8b, the conditioned air a is applied to the entire front seat occupant (second position). Note that the conditioned air c is supplied from the rear roof outlet 19 to the rear passengers as a whole.

On the other hand, in the above-mentioned 21st step S21, C
The PU 60 opens the spot outlet door 36 and discharges the conditioned air from the spot air conditioning outlet 15 toward the front seat occupant in a spot manner (see arrow d in FIG. 1).

Next, in a 22nd step S22, the CPU 60
Closes the roof outlet door 54 as shown in FIG. 9 and prohibits the blowing of conditioned air from the roof outlet 18 on the front side.
(Corresponding to claims 2 and 5) or the roof outlet door 53 is closed as shown in FIG.
The air-conditioned air b is blown out from the air-conditioning air outlet 8b and supplied to the opposite side of the spot air-conditioning air outlet 15 of the front passenger (corresponding to claim 1). In any of these cases,
The conditioned air c is supplied from the roof outlet 19 on the rear side to the entire rear passenger.

Next, in a twenty-third step S23, the CPU 60
Increases and corrects the amount of air blown from the main blower 24 to improve occupant comfort. By the processing in the 23rd step S23, the spot air-conditioning air indicated by the arrow d in FIG.
Then, the airflow with the spot conditioned air from the roof side indicated by the arrow b is increased and corrected.

As described above, according to the embodiment shown in FIGS. 1 to 11 (an embodiment corresponding to claims 1 to 6), the roof outlet (see the roof side unit 17) disposed on the roof 3 is
Air conditioning air is blown from behind the front occupant (the roof) to the front occupant, and the instrument panel outlet (see the spot air conditioning outlet 15) disposed on the side portion (side portion in the vehicle width direction) of the instrument panel 7 The conditioned air is blown to the front seat occupant from the front of the front seat occupant, but the above-described control means (see CPU 60)
When the conditioned air (see arrow d in FIG. 1) from the instrument panel outlet (see spot air conditioning outlet 15) is ON, the conditioned air b from the roof outlet (see roof side unit 17) is turned on as shown in FIG. Air conditioning air from the instrument panel outlet (see spot air conditioning outlet 15) is applied to the opposite side of the instrument panel outlet of the front seat occupant (see spot air conditioning outlet 15) (arrow d in FIG. 1).
7), the roof air outlet (the roof side unit 17) is so arranged that the conditioned air a from the roof air outlet (see the roof side unit 17) is applied to all the front seats as shown in FIG.
(See Reference).

As a result, it is possible to prevent the mutual interference of the conditioned air as much as possible and to make the front passenger comfortable regardless of whether the conditioned air from the instrument panel outlet (see spot air conditioning outlet 15) is ON or OFF. There is an effect that the property can be maintained.

When the air-conditioning air from the instrument panel air outlet (see spot air-conditioning air outlet 15) for which a particularly strong air-conditioning effect (mainly a cooling sensation effect) is desired is turned on, the roof air outlet (roof side unit 1) is turned on.
7) is directed to the opposite side of the front panel occupant's instrument panel outlet (see spot air conditioning outlet 15).
There is an effect that sufficient comfort for the front seat occupant can be secured.

A roof outlet disposed on the roof 3
(Refer to the roof side unit 17) blows the conditioned air a from behind the front occupant (the roof portion) to the front occupant, and blows the conditioned air c from the front of the rear occupant (the roof portion) to the rear occupant. ,
The instrument panel outlet (see spot air-conditioning outlet 15) arranged on the side portion (side portion in the vehicle width direction) of the instrument panel 7 provides air-conditioned air to the front seat occupant from the front of the front occupant (arrow in FIG. 1). d), the above-mentioned regulating means (see the 22nd step S22), when the conditioned air from the instrument panel outlet (see the spot air-conditioning outlet 15) is ON, as shown in FIG. Only the amount of air blown to the front passenger by the side unit 17 is restricted.

As described above, when the conditioned air from the instrument panel outlet (see the spot air-conditioning outlet 15) is turned on, the air-conditioned air c is blown out to the rear seat occupant of the roof outlet (see the roof side unit 17). Since only the amount of air blown out from the roof outlet (see the roof side unit 17) to the front seat occupant is regulated, the conditioned air from the instrument panel outlet (see the spot air conditioner outlet 15) and the roof outlet (the roof side unit 17).
) Can be prevented from colliding with the air conditioning wind from the instrument panel outlet (see spot air conditioning outlet 15).
Therefore, it is possible to maintain the comfort of the front-seat occupant and the rear-seat occupant regardless of whether the conditioned air is ON or OFF. As shown in FIG. 9, instead of the configuration in which the amount of conditioned air from the roof-side unit 17 is blown out to the front occupant when the conditioned air is blown out from the spot air conditioning outlet 15, the air is blown out to the front occupant. Needless to say, a configuration in which the amount is reduced may be adopted.

In addition, since the instrument panel outlet is set as the spot air-conditioning outlet 15, the following effects are obtained. That is, the instrument panel outlet is the spot air conditioning outlet 1
When it is set to 5, the possibility of the collision of the conditioned air increases, and the turbulence of the airflow is likely to occur. However, according to the blowing of the conditioned air from the instrument panel outlet (spot air conditioning outlet 15),
Since the blowing direction of the roof air outlet (see the roof side unit 17) is changed or the amount of air blown out to the front seat occupant is regulated, spot air conditioning can be achieved while preventing the above-described turbulence of the airflow.

Further, the above-described increasing means (refer to the 23rd step S23) is provided at the instrument panel outlet (spot air conditioning outlet 15).
When the air-conditioning air is turned on (see the roof side unit 17), the blowout amount of the roof outlet (see the roof side unit 17) is increased. As described above, when the conditioned air from the instrument panel outlet (see the spot air-conditioning outlet 15) for which the occupant requests a strong air-conditioning effect is ON, the increasing means (see the 23rd step S23) uses the roof outlet (the roof-side unit). 17), the occupant's comfort can be further improved.

When the conditioned air from the instrument panel outlet (see spot air-conditioning outlet 15) is turned on, the above-described regulating means (see step S22) changes the roof outlet (see roof side unit 17) as shown in FIG. Since the blowing of the front occupant from the vehicle is prohibited, the turbulence of the airflow can be surely prevented.

Further, a plurality of outlets 18a for the front occupant are provided at the roof outlet (see the roof side unit 17).
18b, and by switching between these outlets 18a, 18b, the passenger's instrument panel outlet (spot air conditioning outlet 15
(Refer to the spot air-conditioning air outlet 15) from the side opposite to the occupant's instrument panel outlet (see spot air-conditioning air outlet 15). (See FIG. 8) and the mode in which the conditioned air a hits the entire occupant (see FIG. 7) can be easily achieved by switching the plurality of outlets 18a and 18b of the roof outlet 18. The air-conditioning air d from the instrument panel outlet (see spot air-conditioning outlet 15) is selected according to the selection of 18a and 18b.
There is an effect that the conditioned air a and b can be blown out from the roof outlet 18 in accordance with ON (see FIG. 1) and OFF.

As shown in the embodiment, when the spot air conditioning outlets 15 are provided at both left and right ends of the instrument panel 7 and the roof side unit 17 (roof outlet) is provided at the center of the roof 3, the spot air conditioning is provided. Since the conditioned air d from the air outlet 15 and the conditioned air from the roof air outlet 18 in the roof side unit 17 can be blown from the diametrically opposite portion to the occupant, the comfort of the front occupant can be further improved. it can.

Further, as shown in the embodiment, the front roof air outlet 18 provided with a plurality of air outlets 18a and 18b.
In FIG. 8, when the lower air outlet 18 b on the opposite side to the air conditioning air outlet b (see FIG. 8) on the opposite side of the passenger air conditioning air outlet 15 is set as a spot air conditioning air outlet (an air outlet having a small air outlet area), The air-conditioning wind d (see FIG. 1) from the spot air-conditioning outlet 15 on the
Air conditioning b from the small outlet 18b on the side to the occupant (see FIG. 8)
Therefore, the comfort of the front passenger can be further improved. Note that each of the above-described outlets 18
A, 18b, and 19 may be configured by variable louvers, and may be configured to finely adjust the discharge directions of the conditioned air a, b, and c according to the physique and the like of the occupant.

FIG. 12 shows another embodiment of the roof side unit 17, in which a sub-outlet 18b in the front side roof outlet 18 is replaced with the roof outlet door 54 of the embodiment shown in FIGS. A roof outlet door 63 that opens and closes is provided.

With this configuration, the sub-outlet 18b can be quickly opened and closed by the compact door 63 with respect to the previous door 54. Since the same operation and effect as those of the previous embodiment can be obtained by controlling the opening and closing of the doors 53 and 63, the same reference numerals in FIG. 12 denote the same parts as in the previous figure, and a detailed description thereof will be omitted.

FIGS. 13 and 14 show still another embodiment of the roof side unit 17. In this embodiment, conditioned air is introduced into the housing 50 from the left and right pillar ducts 41, 41 via the communication ducts 52, 52. It is configured to be surprising. Further, the housing 50 is provided with a cross-shaped partition portion 64 for partitioning the inside of the housing into front, rear, left and right, and both ends extending in the vehicle width direction of the partition portion 64 are provided with left and right communication ducts 52, 52 and front left and right roof blowers. Each roof outlet door 65 is provided to open and close between the outlets 18.

Then, as shown in FIG. 13, the roof outlet doors 65, 65 are opened and the left and right communication ducts 52, 52 are opened.
When all the roof outlets 18, 18, 19, and 19 communicate with each other, the conditioned air a, c is blown out from each of the roof outlets 18, 19 to the left and right front occupants and the left and right rear occupants. As shown in FIG. 14, the roof outlet doors 65, 65 are closed, and the left and right communication ducts 52, 52 are closed.
When only the rear-side roof outlets 19, 19 are communicated with each other, the blowing of the conditioned air a, a from the front-side roof outlets 18, 18 is restricted (prohibited), and the rear-side roof outlets 19, 19 are restricted. From 19, the conditioned air c can be blown out to the left and right rear passengers.

The above configuration (corresponding to claims 2, 3 and 5)
Even when the control circuit of FIG. 10 and the flowchart of FIG. 11 are used, substantially the same operation and effect as in the previous embodiment can be obtained. Therefore, in FIG. 13 and FIG. The detailed description is omitted.

FIGS. 15 and 16 show still another embodiment of the roof-side unit 17. In this embodiment, conditioned air is guided from the left pillar duct 41 into the housing 50 through the communication duct 52 and the opening 51. It is configured as follows.

In this embodiment, partitioning plates 69, 70, 71 are provided to partition the inside of the housing 50 into a front left chamber 66, a front right chamber 67, and a rear chamber 68, and the partition plates extend in the front-rear direction. 70 is provided with a roof outlet door 72 for opening and closing between the front left chamber 66 and the opening 51, and a partition plate 71 extending in the vehicle width direction opens and closes between the front right chamber 67 and the opening 51. A roof outlet door 73 is provided.

As shown in FIG. 15, the roof outlet doors 72 and 73 are opened to connect the communication duct 52 to all the chambers 66 and 6.
7, 68, all roof outlets 18,
Air conditioning winds a, c can be blown out to the left and right front seat occupants and the left and right rear seat occupants from 18, 19, 19, and FIG.
When the roof outlet doors 72 and 73 are closed and only the communication duct 52 and the rear chamber 68 communicate with each other as shown in FIG.
Air-conditioning air a from the roof outlets 18, 18 on the front side,
restricting (prohibiting) the blowing of a
From 9 and 19, the conditioned air c can be blown to the left and right rear passengers.

Structure as described above (corresponding to claims 2, 3 and 5)
Even when the control circuit of FIG. 10 and the flowchart of FIG. 11 are used, substantially the same operation and effects as those of the previous embodiment can be obtained. Therefore, in FIGS. The detailed description is omitted.

FIGS. 17 to 21 show still another embodiment of the roof side unit 17. In this embodiment, conditioned air is guided from the right pillar duct 41 into the housing 50 through the communication duct 52 and the opening 51. It is configured as follows.

In this embodiment, the opening 5 formed in the center of the housing 50 is provided due to the provision of the pyramid-shaped roof outlet door 75 which is driven and controlled by the door driving device 74.
Reference numeral 1 designates a valve seat 76 (a quadrangular pyramid-shaped valve seat having neither a top nor a bottom) corresponding to a part of a pyramid-shaped door 75.

The above-described pyramid-shaped roof outlet door 75 is driven and controlled back and forth and right and left along the inner bottom of the housing 50 via a drive arm 77 by a door driving device 74 provided on the inner bottom of the housing 50. .

As shown in FIG. 18, the pyramid-shaped door 75 is located at the opening 51, that is, at the center of the valve seat 76, and the door 75 is in contact with any of the four sides of the valve seat 76. When there is no air, the conditioned air from the communication duct 52 passes through the opening 51 to each of the roof outlets 18, 1.
Since the air circulates equally through the air outlets 8, 19 and 19, the conditioned air a and c can be blown out from the roof outlets 18 and 19 to the left and right front passengers and the left and right rear passengers.

As shown in FIG. 19, when the front left side and the front right side of the four sides of the valve seat 76 are simultaneously closed by the pyramid-shaped door 75, the conditioned air from the communication duct 52 passes through the opening 51. Since the air flows through the rear-side roof outlets 19, 19, the air-conditioning air a, a from the front-side roof outlets 18, 18 is restricted (prohibited), and the rear-side roof outlets 19, 19 are controlled. The conditioned air c, c can be blown to the left and right rear passengers.

Further, as shown in FIG. 20, when only the front left side of the four sides of the valve seat 76 is closed by the pyramid-shaped door 75, the conditioned air from the communication duct 52 passes through the opening 51 to the right side of the front side. Because the air flows through the roof outlets 19 on the rear side, which is the roof outlet 18, the blowout of the conditioned air a from the roof outlet 18 on the front left side is restricted.
(Prohibited), the conditioned air a, c, c can be blown out from the remaining roof outlets 18, 19, 19 to the three directions shown in the figure.

Furthermore, as shown in FIG. 21, when only the front right side of the four sides of the valve seat 76 is closed by the pyramid-shaped door 75, the conditioned air from the communication duct 52 is opened.
1, the air flows to the front left roof air outlet 18 and the rear roof air outlets 19, 19, so that the blowing of the conditioned air a from the front right roof air outlet 18 is restricted (prohibited). , The remaining roof outlets 18, 19, 19
, The conditioned air a, c, c can be blown to the three directions shown in the figure.

As described above, according to the embodiment shown in FIGS. 17 to 21, the drive control of the pyramid-shaped door 75
According to the opening position and the opening amount of the opening 51, various blowing modes such as the air-conditioning air blowing modes and other blowing modes shown in FIGS. 18, 19, 20, and 21 can be obtained. There is an effect that the driving amount of 75 may be small.

The other points (points corresponding to claims 2, 3 and 5) are substantially the same as those in the previous embodiment by using the control circuit of FIG. 10 and the flowchart of FIG. Therefore, in FIGS. 17 to 21, the same parts as those in the previous figures are denoted by the same reference numerals, and detailed description thereof will be omitted.

In the correspondence between the configuration of the present invention and the above-described embodiment, the roof outlet of the present invention corresponds to the roof-side unit 17 having the roof outlets 18 and 19 of the embodiment, and the same applies to the instrument panel. The outlet corresponds to the spot air conditioning outlet 15, the control means corresponds to the CPU 60, the regulating means corresponds to the 22nd step S22 controlled by the CPU, and the increasing means corresponds to the 23rd step S22 controlled by the CPU.
23, and the plurality of outlets are the outlets 18a, 18b.
However, the present invention is not limited to the configuration of the above-described embodiment.

For example, the roof outlet doors 53 shown in FIGS. 7 to 9 are added to the roof outlets 18 on the front side in the embodiment shown in FIGS. The configuration shown in FIG.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing a vehicle air conditioner of the present invention.

FIG. 2 is a perspective view showing the vehicle air conditioner of the present invention when viewed from the side of the passenger compartment.

FIG. 3 is an explanatory diagram showing the device as viewed from the rear of a vehicle cabin.

FIG. 4 is a sectional view showing a layout inside an instrument panel of the air conditioner unit.

FIG. 5 is a system diagram showing the overall configuration of the air conditioner.

FIG. 6 is a system diagram showing a flow of air during heating.

FIG. 7 is a sectional view of a roof-side unit.

FIG. 8 is an explanatory diagram of an operation of the roof side unit.

FIG. 9 is an explanatory view of the operation of the roof side unit.

FIG. 10 is a control circuit block diagram.

FIG. 11 is a flowchart showing air conditioning control.

FIG. 12 is a sectional view showing another embodiment of the roof side unit.

FIG. 13 is a plan view showing still another embodiment of the roof-side unit.

FIG. 14 is an explanatory diagram of an operation of the roof side unit.

FIG. 15 is a plan view showing still another embodiment of the roof-side unit.

FIG. 16 is an operation explanatory view of the roof side unit.

FIG. 17 is a plan view showing still another embodiment of the roof-side unit.

FIG. 18 is a sectional view taken along the line AA of FIG. 17;

FIG. 19 is an explanatory diagram of an operation of the roof side unit.

FIG. 20 is a diagram illustrating the operation of the roof side unit.

FIG. 21 is an explanatory diagram of an operation of the roof side unit.

[Explanation of symbols]

 3 Roof 7 Instrument panel 15 Spot air conditioning outlet (instrument panel outlet) 17 Roof side unit (roof outlet) 18a, 18b Outlet 60 CPU (control means) S22 regulating means S23 increasing means

Claims (6)

[Claims] 1. A roof outlet which is arranged on a roof and blows conditioned air from behind a front seat occupant to a front seat occupant, and is arranged on a side portion of an instrument panel to air-condition a front seat occupant from the front of the front seat occupant. An air conditioner for a vehicle, comprising: an instrument panel outlet for blowing wind; and no central instrument panel outlet at the center of the instrument panel, wherein the air conditioning air from the instrument panel outlet is turned on.
Alternatively, an air conditioner for a vehicle including control means for changing the blowing method of the roof outlet in accordance with OFF, and applying a conditioned air to the side opposite to the occupant instrument panel outlet or to the entire occupant. 2. A roof air outlet which is arranged on a roof and blows air-conditioned air from behind a front seat occupant to a front seat occupant or from the front of a rear seat occupant to a rear seat occupant, and is arranged at a side portion of an instrument panel. An instrument panel outlet for blowing the conditioned air of the front passenger from the front of the front passenger, and a vehicle air conditioner having no instrument panel central outlet in the center of the instrument panel, wherein the air conditioning air from the instrument panel outlet is provided. An air conditioner for a vehicle, comprising a restricting means for restricting only the amount of air blown to the front seat occupant from the roof air outlet in response to ON. 3. The vehicle air conditioner according to claim 1, wherein said instrument panel outlet is set as a spot air conditioning outlet. 4. An air conditioner for a vehicle according to claim 1, further comprising means for increasing an amount of air blown out from said roof air outlet when the air conditioning air from said instrument panel air outlet is turned on. 5. A vehicle air conditioner according to claim 2, wherein said restricting means prohibits air from being blown out from a roof air outlet to a front seat occupant. 6. The roof outlet has a plurality of outlets for a front seat occupant, and by switching the plurality of outlets,
2. The air conditioner for a vehicle according to claim 1, wherein the air conditioning air is applied to a side opposite to an instrument panel outlet of the occupant or to the entire occupant.