JP2001063344A - Vehicular air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent conditioned air whose temperature is regulated from receiving a bad influence from arrangement of each conditioned air passage, and improve air condition effect by preventing two conditioned air passages for connecting a blow-out port and a suction port for conditioned air whose temperature is regulated by a conditioned air temperature regulator from mutually thermally interfering. SOLUTION: A tunnel part 71 is arranged on a center part of a floor panel 70, side sills 72 are extendedly arranged along front and rear directions on both side parts of the floor panel 70, and a plurality of cross members 73, 74 are extendedly arranged along right and left directions between the side sills 72. A floor duct 103 and a delivery duct 106 are extendedly arranged in front and rear directions in parallel with each other on the tunnel part 71 until the arranging positions of both cross members 73, 73, and they are branched and connected between both cross members 73, 74. A longitudinal heat insulating material 80 is interposed between the floor duct 103 and the delivery duct 106, and air that circulate in both ducts 103, 106 are mutually not thermally interfered. Accordingly, temperature change of air is suppressed and air condition effect is improved.

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, and more particularly, to a plurality of conditioned air passages (air conditioning ducts) in a vehicle interior.
And a layout structure of the air conditioner.

[0002]

2. Description of the Related Art Conventionally, an air conditioner has been provided with a plurality of conditioned air outlets in a vehicle compartment in order to control the temperature in the vehicle compartment.
The entire vehicle cabin is configured to efficiently adjust the temperature.

For example, Japanese Patent Laid-Open Publication No. Sho 56-39913 discloses that in order to improve the efficiency of temperature control of the entire cabin, air outlets are provided on a roof and a floor, respectively, and conditioned air is blown from above and below the cabin. What is constituted so that it may be issued is described.

According to this air conditioner, conditioned air is circulated more reliably without being affected by seats, occupants, and the like in the vehicle compartment than when air is blown out only from the front or rear outlet of the vehicle compartment. Therefore, it is possible to eliminate the possibility that the vehicle is locally cooled or warmed in the vehicle interior.

However, the conditioned air temperature control device composed of a blower, an evaporator, a heater core and the like inevitably requires a large layout space in relation to the components, so that the installation place is limited, and the cabin is limited. It had to be installed at the front or rear end of the car.

[0006] Therefore, when air outlets are provided on the roof and the floor, respectively, as in JP-A-56-39913, a conditioned air passage (air conditioning duct) connecting the conditioned air temperature control device and the air outlets is provided in the vehicle interior. I needed to prepare.

[0007]

By the way, when the vehicle is parked outdoors during the daytime in summer or at night in winter, the temperature in the vehicle interior becomes extremely high due to the influence of the sunshine and a decrease in the outside temperature. A phenomenon occurs in which the temperature becomes low and the vehicle interior environment becomes poor.

[0008] In order to improve such a poor environment, a method has conventionally been adopted in which the air conditioner is rapidly operated after the engine is started to supply a large amount and rapidly of cooled or heated conditioned air into the vehicle interior.

However, in this method, since hot or cold air remains in the passenger compartment, it takes time to bring the vehicle room temperature to an appropriate temperature even if the air conditioner is quickly operated.

Therefore, the applicant of the present application has previously filed Japanese Patent Application No.
No. 9519 and Japanese Patent Application No. 11-217594 disclose hot and cold air remaining in the cabin to the outside of the cabin or take it into an air conditioner so that the conditioned air can easily flow into the cabin. An air conditioner has been proposed that has an immediate effect.

In these applications, the air is divided into upper and lower parts by the difference in temperature, and the air outlet / inlet of the air conditioner is provided on the floor and the roof of the passenger compartment, respectively. We can do it efficiently.

By the way, when the air outlet / suction port is provided on the floor and the roof of the passenger compartment as described above, the conditioned air passage (air-conditioning duct) connecting the conditioned air temperature controller and the air outlet / suction port is provided as described above. It will be prepared indoors.

However, if the conditioned air passage is appropriately arranged in the vehicle compartment without considering the conditioned air flowing in the conditioned air passage at all, the conditioned air whose temperature has been adjusted by the conditioned air temperature adjustment device may be affected. In addition, there is a possibility that the effect of immediately controlling the effect of the conditioned air may be reduced by half.

Further, when the conditioned air passage is arranged in the vehicle compartment, if the conditioned air passage is arranged without considering the layout of the vehicle compartment, there is a possibility that the limited space in the vehicle compartment may be affected.

Further, it is conceivable that a blower device is installed upstream of the conditioned air passage connected to the suction port to increase the suction force. The blower device is affected by generation of electromagnetic force by a motor, heat generation, and the like. Therefore, when the blower device is appropriately arranged, an undesirable phenomenon may occur.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and in a case where a conditioned air passage is disposed in a vehicle cabin, the conditioned air whose temperature has been adjusted by the conditioned air temperature control device is supplied to the conditioned air passage. It is a main object of the present invention to provide a vehicle air conditioner which is not affected by the arrangement of the vehicle.

[0017]

To solve the above problems, the present invention is configured as follows. According to the first aspect of the present invention, a conditioned air temperature control device is disposed in front of or behind a vehicle compartment, and an air outlet for blowing conditioned air in the center of the vehicle compartment and a suction port for sucking air in the vehicle compartment are provided. A first device that connects the conditioned air temperature control device and the outlet.
The conditioned air passage and the second conditioned air passage connecting the conditioned air temperature control device and the suction port are configured so as not to interfere with each other.

According to a second aspect of the present invention, in the vehicle air conditioner according to the first aspect, the air outlet is provided in an upper part of a vehicle interior, and the suction port is provided in a lower part of the vehicle interior.

According to a third aspect of the present invention, in the vehicle air conditioner according to the first aspect, the air outlet is provided in a lower part of the vehicle interior, and the suction port is provided in an upper part of the vehicle interior.

According to a fourth aspect of the present invention, in the vehicle air conditioner of the first aspect, the first conditioned air passage and the second conditioned air passage are separated from each other by a predetermined distance or more.

According to a fifth aspect of the present invention, in the vehicle air conditioner of the first aspect, a heat shield is interposed between the first conditioned air passage and the second conditioned air passage. .

According to a sixth aspect of the present invention, a conditioned air temperature adjusting device is disposed in front of or behind a vehicle compartment, and an air outlet for blowing conditioned air into the vehicle interior at the center of the vehicle interior, and a suction port for sucking air in the vehicle interior. An air conditioner for a vehicle, comprising: a first conditioned air passage connecting the conditioned air temperature control device and the outlet; and a second conditioned air passage connecting the conditioned air temperature control device and the suction port. The first conditioned air passage and the second conditioned air passage are assembled and arranged along a tunnel portion extending in the front-rear direction formed at the center of the passenger compartment floor, and the first conditioned air passage is arranged at a seat side portion. And the second conditioned air passage are separated from each other, and one of the conditioned air passages is disposed so as to pass below the seat and reach the upper part of the vehicle compartment along the vehicle body pillar.

According to a seventh aspect of the present invention, a conditioned air temperature adjusting device is disposed in front of or behind a vehicle compartment, and a suction port for sucking vehicle interior air is provided at the center of the vehicle compartment. An air conditioner for a vehicle having a second conditioned air passage connecting the mouth, wherein a central processing unit that arranges independent left and right seats in the center of the cabin and controls a control device of the vehicle is provided on one of the left and right sides. Placed under the seat, the second
A blower device connected to the upstream side of the conditioned air passage is arranged below the other sheet.

[0024]

According to the vehicle air conditioner of the first aspect, the first conditioned air passage connecting the conditioned air temperature control device and the outlet, and the second conditioned air passage connecting the conditioned air temperature control device and the suction port. Is configured so as not to cause thermal interference, so that the temperature-controlled conditioned air does not thermally interfere with the air (retentive air) sucked in the vehicle interior, so that the temperature change of the temperature-controlled conditioned air is minimized. Therefore, it is possible to sufficiently secure the effect of the air conditioner that the effect of the conditioned air is immediately exerted.

According to the vehicle air conditioner of the second aspect,
By providing the air outlet at the upper part of the vehicle interior and the intake port at the lower part of the vehicle interior, it is possible to sufficiently secure the function of immediately changing the vehicle interior temperature particularly during cooling.

According to the vehicle air conditioner of the third aspect,
By providing the air outlet at the lower portion of the vehicle interior and the suction port at the upper portion of the vehicle interior, it is possible to sufficiently secure the function of immediately changing the vehicle interior temperature particularly during heating.

According to the vehicle air conditioner of the fourth aspect,
Since the first conditioned air passage and the second conditioned air passage are separated from each other by a predetermined distance or more, a positional relationship that does not cause thermal interference can be obtained. Can be secured.

According to the vehicle air conditioner of the fifth aspect,
By interposing a heat shield between the first conditioned air passage and the second conditioned air passage, even when it is difficult to separate the first conditioned air passage and the second conditioned air passage, thermal interference is prevented. Since it can be avoided, the temperature change of the conditioned air is suppressed, and the effect of the air conditioner can be secured.

According to the vehicle air conditioner of the sixth aspect,
A first conditioned air passage and a second conditioned air passage are collectively arranged along a front-rear tunnel formed at the center of the passenger compartment floor. By separating the conditioned air passage and passing one of the conditioned air passages below the seat and along the vehicle body pillar to reach the upper part of the passenger compartment, the occupant can be located in a limited space in the passenger compartment. The first conditioned air passage and the second conditioned air passage can be efficiently laid out at a position where they do not interfere with the air conditioner.

According to the vehicle air conditioner described in claim 7,
The central processing unit that controls the control device of the vehicle is disposed under one of the left and right seats, and the blower device connected to the upstream side of the second conditioned air passage is disposed under the other seat. Since the influence of the heat generated by the motor and the electromagnetic force during operation does not affect the central processing unit that controls the control device of the vehicle, it is possible to prevent the control device of the vehicle from being adversely affected by the blower operation.

[0031]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows a schematic diagram of an air conditioner of the present invention.
The air conditioner includes various ducts forming a conditioned air passage 100, a main blower 10 and a sub blower 11 forming a blower, an evaporator 12 and a heater core 13 forming a temperature controller, and a controller 14 for controlling operation of the air conditioner. It has.

The main blower 10 is arranged inside the instrument panel in front of the passenger compartment C. This main blower 10
Is connected to one end of a main suction duct 101. The other end of the main suction duct 101 is branched into two, one opening into the vehicle interior and the other opening outside the vehicle interior. The main suction duct 101 is provided with an inside / outside air door 21, and is configured to switch the suction air of the main blower 10 between inside air and outside air by operating the inside / outside air door 21.

One end of a main duct 102 is connected to the discharge side of the main blower 10. In the main duct 102, an evaporator 12 and a heater core 13 are provided.
Are provided. The air discharged from the main blower 10 is cooled by the evaporator 12 and heated by the heater core 13 to generate conditioned air.

The evaporator 12 includes the main duct 1
02, and is connected to a condenser (not shown) by a refrigerant pipe. The evaporator 12 is configured to exchange heat between the air discharged from the main blower 10 and the refrigerant, and to cool the air.
On the other hand, the heater core 13 is provided on a part of the cross section of the main duct 102 at a position downstream of the evaporator 12 and allows the engine cooling water from a radiator (not shown) to flow therein. This heater core 13
Is configured to exchange heat between the air discharged from the main blower 10 and the cooling water, and to heat the air.

The heater core 13 is provided with a roll type air mix damper 15. The air mix damper 15 adjusts the amount of air passing through the heater core 13, thereby adjusting the temperature of the conditioned air.

The main duct 102 is connected to the heater core 1
On the downstream side of 3, there is communication with a plurality of outlets formed in the instrument panel. Specifically, the instrument panel has a defroster outlet 5 that blows out conditioned air toward the windshield.
1, a side outlet 52 that opens to the left and right of the front of the instrument panel and blows out conditioned air toward the occupant, and a foot outlet 53 that blows out conditioned air toward the foot of the occupant. The main duct 102 communicates with a defroster outlet 51, a side outlet 52, and a foot outlet 53, respectively.

The defroster outlet 51 has a defroster door 22, and the foot outlet has a foot door 23, which can be opened and closed. The side outlet 52 is provided with a side register 52A, and is configured to be freely openable and closable and to be able to manually change a blowing direction.

One end of a floor duct 103 is connected to the main duct 102. This floor duct 1
Numeral 03 extends from the front of the passenger compartment toward the center along the floor panel, and is provided with a main door 24 at a connection portion with the main duct 102 so as to be able to freely communicate with the main duct. The floor duct 103 has a floor outlet 54 opening near the front seats SL and SR.
Are formed. The floor outlet 54 includes a floor door 25 and is configured to be freely opened and closed. The main duct 102 and the floor duct 103 constitute a main passage.

One pillar duct 104 is provided on each of the left and right sides of the cabin, and extends vertically along the center pillar. The pillar duct 104 constitutes a pillar passage. On the other hand, the floor duct 10
3 is branched into two at the other end, and each pillar duct 104
Is connected to the lower end. In addition, the pillar duct 10
Numeral 4 extends to the cabin roof position, and its upper end is connected to a roof outlet / suction port 55 that opens at the cabin roof.

A sub-blower 11 is provided below the front seat S provided in the passenger compartment. One end of a sub suction duct 105 is connected to the suction side of the sub blower 11. The other end of the sub suction duct 105 is connected between the floor outlet 54 of the floor duct 103 and a connection portion to the pillar duct 104 to form a sub suction passage. At the other end of the sub suction duct 105, a sub suction door 26 is provided.

The sub suction door 26 shuts off the sub suction duct 105 and the floor duct 103 in the closed state, and connects the sub suction duct 105 to the pillar duct 104 via a part of the floor duct 103 in the open state. It is configured. Further, the sub-suction duct 105 is formed with a sub-suction port 56 that opens at the center of the vehicle compartment.
The sub suction port 56 includes an inside air door 27 and is configured to be freely opened and closed.

One end of a sub discharge duct 106 is connected to the discharge side of the sub blower 11. The other end of the sub-discharge duct 106 is connected to the suction side of the main blower 10 to form a sub-discharge passage. Further, one end of a recycling duct 107 is connected to the sub discharge duct 106.

The other end of the recycle duct 107 is connected between the floor outlet 54 of the floor duct 103 and the connecting portion between the sub suction duct 105 and forms a recycle passage. Further, the sub-discharge duct 10
A recycle door 28 as a damper mechanism is provided at a connection between the recycle duct 6 and the recycle duct 107. The recycle door 28 is configured to shut off the sub discharge duct 106 and the recycle duct 107 in a closed state, and to communicate with the sub discharge duct 106 and the recycle duct 107 in an open state.

As described above, the main duct 102 and the floor duct 103 are connected to each other,
And the sub blower 11 are connected to form a conditioned air passage. Further, the sub suction door 2 of the sub suction duct is provided.
6. The inside air door 27 and the recycle door 28 constitute switching means.

Although not shown in this air conditioner,
A vehicle room temperature sensor for detecting the vehicle interior temperature is provided. The detected values of the vehicle room temperature sensor and the like are input to the controller, and the set temperature is input to the controller by the occupant.

The controller controls each blower and the door of the suction port so as to attain a predetermined operation state based on a temperature difference or the like which is a difference between the set temperature and the actually measured temperature detected by the vehicle room temperature sensor. It constitutes control means for outputting a signal.

The operation of the air conditioner during cooling and during heating will be described below. (1) Cooling operation First, the operation during the cooling operation will be described with reference to FIG.
During this cooling operation, refrigerant flows into the evaporator,
By the heat exchange with the refrigerant, the air discharged from the main blower is cooled, and low-temperature conditioned air is generated. On the other hand, cooling water for the engine is also supplied to the heater core. Then, the amount of air flowing to the heater core is adjusted by the air mix damper, thereby adjusting the temperature of the conditioned air.

The conditioned air thus adjusted is shown in FIG.
The air is blown out as conditioned air cooled into the vehicle cabin through a route indicated by a black arrow.

The main door 24 is opened, the defroster door 22 is opened, the foot door 23 is closed, the floor door 25 is closed, the sub suction door 26 is closed, and the inside air door 2 is opened.
By opening the recycle door 7 and closing the recycle door 28, the cooled conditioned air is blown out from the defroster outlet 51, the side outlet 52, and the roof outlet / suction port 55.

At the same time, the air remaining in the lower part of the passenger compartment is blown from the sub suction port 56 to the main blower 10 through the sub discharge duct 106 via the suction sub blower 11.

As described above, in the cooling operation, the conditioned air cooled from the upper part of the passenger compartment is blown, and the air remaining in the passenger compartment is sucked from the lower part of the passenger compartment. Can be immediately reduced.

(2) Heating Operation Operation Next, the operation during the heating operation will be described with reference to FIG.
During this heating operation, engine cooling water flows only in the heater core, and the amount of air flowing in the heater core is adjusted by the air mix damper to generate high-temperature conditioned air and adjust the temperature.

The conditioned air thus adjusted is shown in FIG.
The air is blown into the cabin as heated conditioned air through the path indicated by the black arrow.

The main door 24 is opened, the defroster door 22 is closed, the foot door 23 is opened, the floor door 25 is opened, the sub suction door 26 is opened, and the inside air door 2 is opened.
By controlling the closed state of the recycle door 7 and the closed state of the recycle door 28, the heated conditioned air is blown out from the foot outlet 53, the side outlet 52, and the floor outlet 54.

At the same time, the air staying in the upper part of the vehicle interior is sucked from the roof outlet / suction port 55 and the sub blower 11 is sucked.
Through the sub-discharge duct 106 through the main blower 10
It is blown to.

As described above, in the heating operation, the conditioned air heated from the lower part of the passenger compartment is blown, and the air remaining in the passenger compartment is sucked from the lower part of the passenger compartment. Can be raised instantly.

Hereinafter, a specific layout and structure of the air conditioner will be described. FIG. 4 is a schematic layout diagram in a state where the air conditioner is mounted on the vehicle. A power unit P including an engine E and a mission M is horizontally disposed in an engine room provided at a front portion of the vehicle V,
A condenser 60 and a radiator 61 are provided in front of the power unit P.

Inside the instrument panel I in the passenger compartment, a main duct 102 of the air conditioner and a controller 14 are arranged. In the main duct 102, the main blower 10 and the evaporator 1 receiving the supply of the refrigerant from the condenser 60 are provided.
2 and a heater unit 13 that receives supply of cooling water from the radiator 60 are provided.

From the main duct 102 to the center of the cabin, a floor duct 103 and a sub-discharge duct 106 are installed so as to extend in parallel at the center of the floor and rearward of the vehicle.

The floor duct 103 has a floor outlet 54 that branches off from the middle and opens toward the rear of the passenger compartment.
The left and right pillar ducts 1 are provided at the tip.
There is provided a branch portion 103a that branches toward 04.

On the other hand, a recycling duct 105 that connects the floor duct 103 and the sub-discharge duct 106 is connected to the sub-discharge duct 106 on the way, and a tip of the sub-discharge duct 106 is connected to the sub-blower 11.

A sub-suction duct 105 is provided between the sub-blower 11 and the upstream side of the branch portion 103a of the floor duct.

The branching and connection of these ducts are performed between the front seats SL and SR, and the ducts are laid out so as not to interfere with the occupants of the front seats and other occupants.

The sub blower 11 is provided below the left front seat SL.

As a result, the sub-blower 11 having a large volume can be laid out at a position that does not affect the occupant. Further, the influence of heat generation and noise of the motor is reduced by the fact that the seat is located upward, so that Can be reduced.

Further, below the right front seat SR,
Vehicle control devices (eg, engine, mission, ABS)
, Etc.) for controlling the CPU 62 (central processing unit).

As a result, the CPU 62 sets the sub blower 11
Because it is installed at a position away from the motor, stable performance can be maintained without being affected by heat generated by the motor or electromagnetic force.

FIG. 5 to FIG. 7 are concrete structural diagrams of the air conditioner. FIG. 5 is a perspective view of a specific structure of a main duct, FIG. 6 is a perspective view of a specific structure of various ducts arranged on a floor panel, and FIG. 7 is a specific structure diagram of a roof panel provided with a roof outlet / suction port. is there.

Inside the hollow box-shaped main duct 102, a circular main blower 10, a box-shaped evaporator 12, and a heater core 13 are installed linearly so as to generate conditioned air, respectively.

A main suction duct 101 is provided above the main duct 102 to take air inside and outside the vehicle into the main duct 102, and is configured to take in air before generating conditioned air.

A sub-discharge duct 106 is connected to the upper side of the main duct 102, and the stagnant air sucked in the vehicle compartment is taken into the upper space of a partition wall 102a that partitions the inside of the main duct. , And is generated again in the conditioned air.

A side outlet duct 108 connected to the side outlet 52 and a floor duct 103 connected to the floor outlet 54 and the roof outlet / suction port 55 are connected to the lower side of the main duct 102, respectively.
It is configured to send conditioned air to each duct.

Of the ducts connected to the main duct 102, the floor duct 103 and the sub discharge duct 10
6 is the tunnel portion 71 of the floor panel 70 as described above.
Above, it is arrange | positioned so that it may extend in the front-back direction.

The floor panel 70 has a tunnel portion 71 formed so as to extend in the front-rear direction at the center, and side sills 72 formed on both sides of the floor panel 70 so as to extend in the front-rear direction.

Further, a tunnel portion 71 and a side sill 72 are provided.
A second cross member 73 and a third cross member 74 are joined in the vehicle width direction to install the front seats SL and SR respectively above the floor panel 70 between them.
It is configured.

The floor duct 103 and the sub-discharge duct 106 extend in the front-rear direction in parallel on the tunnel portion to the position where the second cross member 73 and the third cross member 74 are provided, and the front seat SL , SR, are branched and connected between the second cross member 73 and the third cross member 74, respectively.
This branching and connection is as described with reference to FIG.

The floor duct 103 and the sub-discharge duct 106 extending in the front-rear direction on the tunnel 71 in parallel.
A long heat shielding material 80 is interposed between the air passages and so that the air flowing through the ducts 103 and 106 does not receive thermal interference with each other.

The ducts branched from the branch portion 103a of the floor duct both extend in the vehicle width direction and are connected to the pillar duct 104. This pillar duct 104
Is a through-hole 7 formed in the vehicle-side panel of the side sill 72.
2a is inserted, and is arranged in the center pillar 75.

The sub blower 11 and the CPU 62 installed on the floor panel 70 between the second cross member 73 and the third cross member 74 are also the same as those described with reference to FIG. I do.

In the passenger compartment roof, the conditioned air blown by the pillar duct 104 is blown out to the upper part of the passenger compartment. Therefore, a projecting portion 77 connected to the vehicle interior side of the roof panel 76 from the center pillar 75 and projecting into the passenger compartment is provided. A roof outlet / suction port 55 having a louver is formed on the front and rear surfaces of the protrusion 77.

FIG. 8 is a sectional view taken along the line AA of FIG. 6. As can be seen from FIG. 8, a belt-like shape is provided between the floor duct 103 installed on the tunnel 71 and the sub-discharge duct 106. A heat shield 80 having a rectangular cross section is interposed.

A center console 78 is mounted above the ducts 103 and 106 and the heat shield 80 so that the ducts 103 and 106 and the heat shield 80 are not exposed to the vehicle interior. . In addition, 79 is a floor carpet, and EP is an exhaust pipe.

As described above, the following effects can be obtained by the configuration and arrangement of the air conditioner. First, by interposing a long heat shield between the floor duct 103 and the sub-discharge duct 106, the conditioned air whose temperature has been adjusted and the air sucked in the vehicle cabin (remaining air) do not interfere with each other. For,
The change in temperature of the conditioned air whose temperature has been adjusted is suppressed as much as possible, and the effect of the air conditioner, which has an immediate effect of the conditioned air, can be sufficiently ensured.

Further, the upper part of the tunnel portion 71 and the front seat S
By arranging various ducts, sub-blowers, etc. under the R and SR, many air conditioning components can be efficiently laid out in a limited space in the vehicle cabin so as not to obstruct occupants. Can be.

Further, by disposing the sub-blower and the CPU apart from each other, it is possible to prevent the motor of the blower from being adversely affected by the CPU. Next, another embodiment will be described with reference to FIGS.

FIGS. 9 and 10 show another embodiment of the first embodiment, and FIG. 10 is a sectional view taken along the line BB of FIG.

In this embodiment, the sub-discharge duct 206 is disposed at a position apart from the floor duct 103 by repositioning the sub-discharge duct 206 from above the tunnel portion 71 to the side of the tunnel portion 71. are doing.

As described above, by arranging the floor duct 103 and the sub discharge duct 206 apart from each other, the floor duct 103 and the sub discharge duct 206 can be heated without providing a heat shielding material as in the above embodiment. Interference can be prevented.

The remaining structure is the same as that of the above-described embodiment, and the description is omitted by assigning the reference numerals.

FIGS. 11 and 12 show another embodiment of the second aspect, and FIG. 12 is a sectional view taken along the line CC of FIG.

In this embodiment, the pillar duct 204 and the sub suction duct 205 are separated from the floor duct 103 from the front position of the passenger compartment, and the pillar duct 204 and the sub suction duct 205 are separated from the front position of the passenger compartment.
Along the front and rear direction.

By arranging the pillar duct 204 and the sub-suction duct 205 along the side sill 72 in this manner, the pillar duct 204, particularly, the pillar duct 204 can be largely separated from the sub-discharge duct 106 arranged on the tunnel portion 71. Therefore, the pillar duct 204 through which the cooled conditioned air flows most does not receive any thermal influence from the sub-discharge duct, so that the temperature rise of the conditioned air can be reliably prevented.

Further, the separation from the tunnel portion is not affected by the high-temperature exhaust pipe, so that the temperature of the conditioned air can be further prevented from rising.

The other structure is the same as that of the above-described embodiment, and the description is omitted by assigning the reference numerals.

The preferred embodiment has been described above.
The present invention is not limited to these embodiments. A plurality of conditioned air passages (air-conditioning ducts) are provided in the vehicle compartment, and in order to immediately obtain the effect of the conditioned air, an outlet for blowing the conditioned air at least to the center of the vehicle compartment. And a suction port that sucks in-cabin air, so that the conditioned air whose temperature has been adjusted by the conditioned air temperature adjustment device is not affected by the arrangement of the conditioned air passages, and includes all It is.

Therefore, for example, all air conditioning ducts may be arranged on the left and right side sills, or ducts may be arranged on both sides of the tunnel.

Further, as for the heat shield, the heat shield may be wrapped around an air conditioning duct connected to the outlet for blowing out the conditioned air to prevent a temperature change.

In addition, the detailed structure may be appropriately changed without departing from the spirit of the present invention.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of an air conditioner of the present invention.

FIG. 2 is a schematic diagram of the air conditioner during a cooling operation.

FIG. 3 is a schematic diagram of an air conditioner during a heating operation.

FIG. 4 is a schematic layout diagram of an air conditioner.

FIG. 5 is a specific structural perspective view of a main duct.

FIG. 6 is a perspective view showing a specific structure of various ducts on a floor panel.

FIG. 7 is a specific structural view of a roof panel.

FIG. 8 is a sectional view taken along line AA of FIG. 6;

FIG. 9 is a specific structural perspective view of another first embodiment.

FIG. 10 is a sectional view taken along line BB of FIG. 9;

FIG. 11 is a specific structural perspective view of another second embodiment.

FIG. 12 is a sectional view taken along line CC of FIG. 11;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Main blower 11 ... Sub blower 12 ... Evaporator 13 ... Heater core 54 ... Floor outlet 55 ... Roof blow-off / suction port 56 ... Sub-suction port 62 ... CPU (Central processing unit) 71 ... Tunnel part 80 ... Heat shielding material 102 … Main duct 103… Floor duct 104, 204… Piler duct 105… Sub suction duct 106, 206… Sub discharge duct SL… Left front seat SR… Right front seat

Continuing from the front page (72) Inventor Takami Kirita 3-1 Shinchi, Fuchu-cho, Aki-gun, Hiroshima Mazda Co., Ltd. (72) Inventor Toshifumi Suzuki 3-1 Shinchi, Fuchu-cho, Aki-gun, Hiroshima Mazda F-term (Reference) 3L011 BS02

Claims (7)

[Claims] An air conditioner for a vehicle, comprising: a conditioned air temperature control device disposed in front of or behind a cabin, and an air outlet for blowing conditioned air in the center of the cabin and a suction port for sucking air in the cabin. A first conditioned air passage connecting the conditioned air temperature control device and the outlet, and a second conditioned air passage connecting the conditioned air temperature control device and the suction port, wherein the first conditioned air passage does not interfere with heat. Air conditioner. 2. An air conditioner for a vehicle according to claim 1, wherein said air outlet is provided in an upper part of a vehicle interior, and said suction port is provided in a lower part of the vehicle interior. 3. The air conditioner for a vehicle according to claim 1, wherein said air outlet is provided in a lower part of the vehicle interior, and said suction port is provided in an upper part of the vehicle interior. 4. The air conditioner for a vehicle according to claim 1, wherein the first conditioned air passage and the second conditioned air passage are separated by a predetermined distance or more. 5. An air conditioner for a vehicle according to claim 1, wherein a heat shield is interposed between said first conditioned air passage and said second conditioned air passage. 6. A conditioned air temperature control device is disposed in front of or behind a vehicle compartment, and an air outlet for blowing conditioned air into the vehicle interior at the center of the vehicle compartment and a suction port for sucking air in the vehicle interior are provided. An air conditioner for a vehicle, comprising: a first conditioned air passage connecting a temperature control device and the air outlet; and a second conditioned air passage connecting the conditioned air temperature control device and the suction port. The first conditioned air passage and the second conditioned air passage are assembled and arranged along a formed tunnel portion extending in the front-rear direction, and the first conditioned air passage and the second conditioned air passage are arranged at a seat side. An air conditioner for a vehicle, in which one of the conditioned air passages is arranged so as to pass under the seat and to reach the upper part of the passenger compartment along the vehicle body pillar. 7. A conditioned air temperature control device is disposed in front of or behind the vehicle compartment, and a suction port for sucking vehicle interior air is provided in the center of the vehicle compartment, and a second harmony device connecting the conditioned air temperature control device and the suction port is provided. An air conditioner for a vehicle having an air passage,
In the center of the cabin, left and right independent seats are arranged, and a central processing unit that controls a control device of the vehicle is arranged below one of the left and right seats and connected to an upstream side of the second conditioned air passage. A blower device was placed under the other sheet,
Vehicle air conditioner.