JP2002283843A - Air conditioner for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner for vehicles, which can regulate a warm air jet function when the regulation is necessary and control the decrease of conditioned air directed to an occupant on the front seat. SOLUTION: The air conditioner for vehicles comprises a face blowout hole 120 arranged in the center of a vehicle and a foot blowout hole 130 where an air passage 119 is bifurcated into the direction of a driver seat 211, of the seat 220 next to the driver, and of a walk-through passage 230. The air conditioner is installed in the vehicle 200 having the walk-through passage arranged in the center. An open-and-close mean 150 is provided on a passage side blowhole 130c leading from the foot blowout hole 130 to the walk-through passage 230. If the air temperature on the rear seat 220 side becomes equal to that on the front seat 210 side, or the conditioned air is blown out also from the face blowout hole 120, while the conditioned air is blown out from the foot blowout hole 130, the open-and-close mean 150 is closed by a control mean 160.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a vehicle air conditioner applied to a vehicle having a walk-through passage,
The present invention relates to air-conditioning air blowing control.

[0002]

2. Description of the Related Art A walk-through passage 23 between a driver seat 211 and a passenger seat 212 of a vehicle 200 and leads to a rear seat 220.
When 0 is provided, in the conventional vehicle air conditioner, as shown in FIG. 6, the foot outlet 130 is branched not only to the feet of the front seat occupant but also to the walk-through passage 230. A device having a hot air jet function for blowing air-conditioned air is known.

Accordingly, as shown in FIG. 7, for example, when warm air blown from the foot outlet 130 to the feet of the occupant of the front seat 210 at the time of heating flows toward the rear seat 220, for example,
Since it is possible to suppress the cold air on the 20 side from flowing backward from the walk-through passage 230, it is possible to prevent the occupant from feeling uncomfortable at the beginning of heating.

[0004]

However, since the outlet 130c directed toward the walk-through passage 230 is provided in a branched manner, the driver seat 2 has the same performance as the blower.
11. The amount of air directly hitting the feet of the occupant in the passenger seat 212 is reduced.

An object of the present invention is to provide an air conditioner for a vehicle which restricts the hot air jet function only when necessary and suppresses a decrease in air conditioning airflow to front passengers as much as possible. It is in.

[0006]

The present invention employs the following technical means to achieve the above object.

According to the first aspect of the present invention, the front seat (21
0) and a vehicle (200) having a walk-through path (230) at the center thereof, which can move between the rear seat (220) and the vehicle (200). A face outlet (120) for blowing air-conditioned air toward the upper body, and a lower body and a walk-through passage (230) of the occupant on the driver seat (211) side and the passenger seat (220) side of the front seat (210). Means (130) for branching off the air flow path (119) to blow out conditioned air, and control means (160) for controlling the amount of conditioned air blown from the face outlet (120) and the foot outlet (130). In the vehicular air conditioner having the air passage (130c), the passage-side outlet (130c) toward the walk-through passage (230) among the foot outlets (130) has the air flow path (130). Closing means for opening and closing the 19c) (1
50) is provided, and the air temperature on the rear seat (220) side is increased by the control means (160) when the conditioned air is blown out from the foot outlet (130).
When the air temperature is equal to the air temperature on the side, or when at least one condition of blowing the conditioned air from the face outlet (120) is satisfied, the opening / closing means (1) is opened.
50) is closed.

Accordingly, if the air temperature on the rear seat (220) side is equal to the air temperature on the front seat (210) side, the vehicle passes through the walk-through passage (230) from the rear seat (220) side to the front seat. Front seat (210) even if air flows backward to (210) side
Therefore, it is unnecessary to blow air from the passage-side outlet (130c). The face outlet (12) disposed at the center of the vehicle (200)
In the case where the conditioned air is blowing also from 0), the air flowing backward can be pushed back, and similarly, the blowing from the passage-side outlet (130c) becomes unnecessary.

Thus, the passage-side outlet (130c)
It is possible to close the opening / closing means (150) so as not to blow out the conditioned air under the condition that the conditioned air is not required to be blown out from the driver seat (211) and the passenger seat (212). The air-conditioning airflow to the side can be prevented from lowering.

According to the second aspect of the present invention, the front seat (21
0) and a vehicle (200) having a walk-through passage (230) at the center thereof which can move between a rear seat (220) and a front seat air conditioner disposed on the front seat (210) side. (100a), a rear seat air conditioner (100b) disposed on the rear seat (220) side, and the front seat air conditioner (100a) is arranged at least in the center of the vehicle (200), A face outlet (120) for blowing air-conditioned air toward the upper body of the occupant; a lower body and a walk-through passage (230) of the occupant on the driver's seat (211) side and the passenger's seat (212) side of the front seat (210); A foot air outlet (130) for branching out the air flow path (119) toward the air outlet and blowing out the conditioned air; and a control means for controlling the air conditioned air volume blown out from the face outlet (120) and the foot air outlet (130). 160 A moving vehicle air-conditioning apparatus having the bets, of the foot outlet (130), closing means for walkthrough passage (230) in toward aisle air outlet (130c) for opening and closing the air passage (119c) (15
0) is provided, and when the control means (160) blows out the conditioned air from the foot outlet (130),
When the air temperature at the rear seat (220) is equal to the air temperature at the front seat (210), or when the face air outlet (12
0), the opening / closing means (150) is opened when at least one condition of the case where the rear air conditioner (100b) is operated for a predetermined time or more is satisfied. It is characterized by being closed.

Thus, in the air conditioner having the rear seat air conditioner (100b), if the rear seat air conditioner (100b) has been operating for a predetermined time or more, the walk-through passage (23) is not required.
0), even if air flows backward from the rear seat (220) side to the front seat (210) side, the front seat (21
Since no discomfort is given to the occupant in 0), it is not necessary to blow air from the passage-side outlet (130c).

[0012] Therefore, in addition to the first aspect of the present invention, the condition that the conditioned air is not required can be further added, and the blowing of the conditioned air from the passage-side outlet (130c) can be suppressed. Seat (211) side and passenger seat (21)
2) A decrease in the air-conditioning airflow to the side can be suppressed.

According to the third aspect of the present invention, the control means (1
The opening / closing means (150) is based on at least the temperature in the passenger compartment, the solar radiation, and the operating state of the rear seat air conditioner (100b).
The opening / closing means (150) is characterized in that the opening / closing means (150) is opened / closed based on the determination result of the determining equation.

Thus, the passage-side outlet (130c)
It is possible to finely set the conditions under which the ventilation from the air is not required, and it is possible to suppress a decrease in the air-conditioning air volume to the driver's seat (211) side and the passenger's seat (212) side.

Note that the reference numerals in parentheses of the above-mentioned means indicate the correspondence with specific means described in the embodiment described later.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) FIGS. 1 to 4 show a first embodiment of the present invention, and a specific configuration thereof will be described below. FIGS. 1 to 4 show the present invention applied to an air conditioner for a vehicle, and show the overall configuration thereof.

The target automobile (hereinafter referred to as a vehicle) 200
Is, for example, a minivan type vehicle in which a walk-through passage 230 through which an occupant can move between a front seat 210 and a rear seat 220 is provided at the center.

A vehicle air conditioner (hereinafter, air conditioner) 100
Is composed of a blowing unit (not shown) and an air conditioning unit 110, and is arranged in front of the vehicle 200 on the front side of the instrument panel.

The air conditioning unit 110 is provided with an evaporator 112 for cooling the blown air and a heater 113 for heating the blown air in an air-conditioning case 111 made of polypropylene and having a small thickness.
Is provided.

An air mixing door 114 is provided on the upstream side of the heater 113. The air mixing door 114 is provided from a state in which the front surface of the heater 113 is closed by the servomotor 141 to a state in which the air flow path X bypassing the heater 113 is closed. It rotates continuously. As the air mix door 114 rotates, an air flow path X that passes through the heater 113 and is heated by the air, and an air flow path Y that bypasses the heater 126 are selected. The air temperature is adjusted according to the ratio between the heating air and the cooling air passing through X and Y.

Further, on the downstream side of the air-conditioning case 111, a defroster duct 101 for forming an air flow path toward the window glass in front of the passenger compartment, a face duct 118 for forming an air flow path toward the upper body of the occupant, A foot duct 119 that forms an air flow path toward the lower body of the occupant is provided.

The respective ducts 101, 11
The defroster door 103, the face door 115, and the foot door 116 are provided on the side of the air conditioning case 111 of 8 and 119, and each air flow path is opened and closed in conjunction with the servo motor 142 and the link mechanism 117.

Each of the ducts 101, 118,
On the downstream side of 119, a defroster outlet 102, a face outlet 120, and a foot outlet 130 are formed so as to open into the vehicle interior.

The air conditioning mode depends on the open / close state of each of the doors 103, 115 and 116.
0, bi-level mode in which conditioned air blows from foot outlet 130, foot mode in which conditioned air blows out from foot outlet 130, foot differential mode in which conditioned air blows out from foot outlet 130 and defroster outlet 102, defroster blowout The mode is divided into a differential mode in which the conditioned air blows from the opening 102.

Here, the face outlet 120 is shown in FIG.
As shown in the figure, the instrument panel is arranged at the center and both sides. Further, as shown in FIG. 4, the foot duct 119 is a driver side duct 119a toward the driver's seat 211 side, a passenger side duct 119b toward the passenger side, and a passage side duct 119c toward the walk-through passage 230 side. As shown in FIG. The foot outlet 130 is divided into a driver side outlet 130a, a passenger side outlet 130b, and a passage side outlet 130c.

Further, near the passage-side outlet 130c, a passage-side door 1 as an opening / closing means which is a main part of the present invention is provided.
The servo motor 143 opens and closes the air flow path in the passage-side duct 119c. The details will be described later.

An electronic control unit (hereinafter referred to as E
CU) 160 includes a front seat inside air sensor 171 and a rear seat inside air sensor 172 provided on the front seat 210 side and the rear seat 220 side in the vehicle interior, an outside air sensor (not shown), a solar radiation sensor, a temperature setting switch, and a blowing mode. Upon receiving a detection signal from a switch or the like, the servo motors 141 to 143 are received.
Is operated to control the degree of opening of each of the doors 114, 103, 115, 116 and 150. In particular,
The temperature of the blown air is controlled by varying the opening of the air mix door 114, and each blowing mode is controlled by varying the opening of each of the doors 103, 115, and 116. The control of the passage-side door 150 will be described in detail below.

The passage door 150 is connected to the foot outlet 13.
0 (actually, the outlets 130a, 130b that branch off,
When the air conditioned from 130c) is being blown out (that is, in the bi-level mode or the foot mode)
In addition, among the detection signals input to the ECU 160, the front seat 2 obtained by the inside air sensors 171 and 172
When the air temperature on the 10 side is equal to the air temperature on the rear seat 220 side, when the air-conditioned air is also blown out from the face outlet 120 (that is, in the bi-level mode), If at least one condition is satisfied, the ECU 16
0 controls the air passage in the passage-side duct 119c to be closed.

According to the above configuration, if the air temperature on the rear seat 220 side is equal to the air temperature on the front seat 210 side, the vehicle passes through the walk-through passage 230 from the rear seat 220 side to the front seat 21 side.
Even if the air flows backward to the zero side, it does not cause discomfort to the occupant in the front seat 210, so that the hot air jet function described in the section of the related art does not need to blow air from the passage-side outlet 130c. . Further, when the conditioned air is also blown out from the face outlet 120 arranged in the center of the vehicle 200, the air flowing backward can be pushed back, so that the blowing from the passage-side outlet 130c becomes unnecessary similarly.

As described above, the conditions under which the conditioned air is not required to be blown out from the passage-side outlet 130c are determined as described above, and under such conditions, the passage-side door 150 is closed so that the conditioned air is not blown out. Therefore, it is possible to suppress a decrease in the air-conditioning airflow to the driver's seat 211 side and the passenger's seat 212 side.

(Second Embodiment) As shown in FIG. 5, an air conditioner 100 is provided in addition to a front seat air conditioner 100a arranged in front of a normal instrument panel and a dedicated air conditioner provided below a rear seat 220. When the rear air conditioner (heater exclusively for rear seats) 100b is used, the passage-side door 150 is closed when the rear air conditioner 110b is operated for a predetermined time or more with respect to the first embodiment. In addition, through the walk-through passage 230, the rear seat 220
Rear air conditioner 1 even if air flows backward from the side to the front seat 210
Since the air is already air-conditioned by 00b, the occupant in the front seat 210 does not feel uncomfortable and does not need to blow air from the passage-side outlet 130c.

Therefore, a condition that air-conditioning air is not required can be further added to the first embodiment, and the passage-side outlet 13
Because the air-conditioning air blow from 0c can be suppressed,
It is possible to suppress a decrease in the air-conditioning airflow toward the driver's seat 211 and the passenger's seat 212.

(Other Embodiments) Each Inside Air Sensor 17
A determination formula for closing the passage-side door 150 is created in advance in consideration of the conditions of the solar radiation obtained by the solar radiation sensor in addition to the cabin temperature obtained by the first and 172 and the operating state of the rear seat air conditioner 100b, and the ECU 160 If it is stored, the condition that the air is not required to be blown from the passage-side outlet 130c can be finely set, and a decrease in the air-conditioning airflow to the driver's seat 211 and the passenger's seat 212 can be suppressed.

In the first embodiment, two inside air sensors 171 and 172 have been described to detect the air temperature between the front seat 210 and the rear seat 220. One inside air sensor 171 is provided on the 210 side,
The air temperature on the rear seat 220 side may be used as the detected value using a predetermined correlation equation of the temperature between the front seat 210 side and the rear seat 220 side.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a vehicle mounted state according to a first embodiment of the present invention.

FIG. 2 is a schematic diagram illustrating an entire configuration according to the first embodiment of the present invention.

FIG. 3 is a plan view mainly showing a face outlet in a vehicle mounted state.

FIG. 4 is a plan view mainly showing a foot outlet in a vehicle mounted state.

FIG. 5 is a schematic diagram showing a vehicle mounted state according to a second embodiment of the present invention.

FIG. 6 is a perspective view showing a state in which conditioned air is blown out from a foot outlet of the related art.

FIG. 7 is a plan view showing the flow of conditioned air in the entire vehicle in the related art.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 air conditioner for vehicle 100a front air conditioner 100b rear air conditioner 119 foot duct (air passage) 119c passage side duct (air passage) 120 face outlet 130 foot outlet 130c passage side outlet 150 passage side door ( Opening / closing means) 160 ECU (control means) 200 Vehicle 210 Front seat 211 Driver seat 212 Passenger seat 220 Rear seat 230 Walk-through passage

Claims (3)

[Claims] 1. The present invention is applied to a vehicle (200) having a walk-through passage (230) at a center thereof, which can move between a front seat (210) and a rear seat (220), and at least one of the vehicles (200). A face outlet (120) that is arranged at the center and blows air-conditioning air toward the upper body of the occupant, and a driver (211) side and a passenger (220) side of the front seat (210). A foot outlet (130) from which an air flow path (119) branches toward the lower body and the walk-through passage (230) to blow out conditioned air; a face outlet (120) and the foot outlet (130). ), A control means (160) for controlling the amount of air-conditioning air blown out of the foot air outlet (130). Toward passage side air outlet (130
c) is provided with opening / closing means (150) for opening and closing the air flow path (119c), and the control means (160) controls the foot outlet (13
0), the air temperature on the rear seat (220) side is changed to the front seat (210).
The opening / closing means (150) is closed when the air temperature is equal to the air temperature on the side or when at least one condition of conditioned air is also blown out from the face outlet (120). An air conditioner for a vehicle, characterized in that: 2. A vehicle (200) having a walk-through passage (230) at the center thereof, which can move between a front seat (210) and a rear seat (220), wherein the front seat (210) side is used. Front air conditioner (10
0a), a rear seat air conditioner (100b) disposed on the rear seat (220) side, wherein the front seat air conditioner (100a) is provided on the vehicle (200).
And a face outlet (120) for blowing air-conditioned air toward the upper body of the occupant; and a driver seat (211) side and a passenger seat (212) side of the front seat (210). An air flow path (119) branches toward the lower body of the occupant and the walk-through passage (230) to blow out conditioned air, a foot outlet (130), the face outlet (120) and the foot outlet ( 130) a control unit (160) for controlling the amount of air-conditioning air blown out from the air-conditioning airflow from the foot-side outlet (130).
c) is provided with an opening / closing means (150) for opening and closing the air flow path (119c).
0), the air temperature on the rear seat (220) side is changed to the front seat (210).
When the air temperature is equal to the air temperature on the side, or when the conditioned air is blown out from the face outlet (120), or when the rear air conditioner (100b) has been operating for a predetermined time or more. The air conditioner for a vehicle, wherein the opening / closing means (150) is closed when at least one of the conditions is satisfied. 3. The control means (160) has a judgment formula for judging whether to open or close the opening / closing means (150) based on at least the temperature in the passenger compartment, solar radiation, and the operating state of the rear seat air conditioner (100b). The vehicle air conditioner according to claim 2, wherein the opening / closing means (150) is opened / closed according to a result of the determination.