JP2002103942A - Air conditioning device for vehicle and air conditioning method for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioning device for a vehicle and an air conditioning method for a vehicle capable of improving comfort by increasing cooling capacity in a driver seat side, operating with low energy consumption, and improving a cooling down performance in a passenger compartment. SOLUTION: In this air conditioning device having an inlet part of a ventilation duct including a driver seat side ventilation passage communicating to a driver seat side below out opening and a passenger seat side ventilation passage communicating to a passenger seat side below out opening connected to an air conditioning unit, the ventilation duct is constructed to make air flow quantity V1 in the driver seat side ventilation passage and air flow quantity V2 in the passenger seat side ventilation passage fulfill a relation of V1>V2 to increase air flow quantity blowing out from the driver seat side below out opening for increasing capacity in the driver seat side, improving comfort, operating with low energy consumption, and improving a cooling down performance in a passenger compartment by swirl flow.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a ventilation duct of a vehicle air conditioner and a vehicle air conditioning method.

[0002]

2. Description of the Related Art A conventional vehicle air conditioner will be described with reference to FIGS. FIG. 4 is an explanatory view of a configuration of a conventional vehicle air conditioner, FIG. 5 is an external perspective view of a vent ventilation duct of FIG. 4, and FIG. 6 is an external view of an instrument panel portion in a general vehicle interior. 1 shows a state in which a vehicle air conditioner or a vehicle air conditioner of the present invention is equipped.

As shown in FIG. 4, a vehicle air conditioner (hereinafter simply referred to as an “air conditioner”) 1 has an air conditioner having main air conditioners such as a blower fan 6, an evaporator 7 and a heater 8 in a casing 4. It is composed of a unit 2 and a ventilation duct such as a VENT ventilation duct 3.

[0004] Incidentally, the "VENT" blast is a blast directed from the chest of the occupant of the vehicle to the face. Usually, an outlet is provided in the instrument panel of the vehicle, and this is also called "FACE" blast. In the specification, the word “VENT” is used in the above meaning, such as “VENT air duct”.

[0005] The VENT air duct 3 has an inlet 3a.
4 and 5, which are connected to the connection portion 5 of the vent vent outlet of the air conditioner unit 2 and extend in the lateral direction as shown in FIGS. , 32 and the passenger seat side outlets 33, 34 are communicated with each other, and are installed in an instrument panel section 50 in the vehicle interior as shown in FIG.

At one end of the casing 4 of the air conditioner unit 2, an inside air suction port 11 and an outside air suction port 12 are provided, and a switching damper 9 is used to supply circulating air from the inside air suction port 11 to the vehicle interior or from the outside air suction port 12 to the outside air of the vehicle. It is selectively switched and introduced.

A blower fan 6 directly connected to the electric motor is provided near both the suction ports 11 and 12.

[0008] An evaporator 7 is provided in the ventilation passage 4 a downstream of the blower fan 6 to cool the air introduced into the casing 4.

A heater 8 is provided in a ventilation passage 4 b downstream of the evaporator 7, and the amount of cooling air flowing through the ventilation passage 4 b is reduced by an air mix damper 10 installed immediately before the heater 8. The amount of heat is adjusted and the temperature is adjusted.

The temperature-controlled air passes through the ventilation passage 4c of the casing 4 downstream of the heater 8, and is blown to each ventilation duct (not shown) as air-conditioned air from the ventilation passage outlet. VENT
The air is blown into the air duct 3 through the connection part 5 of the outlet of the VENT air passage of the air conditioner unit 2, and the driver-side air outlets 31 and 32 of the vehicle instrument panel 50 to which the VENT air duct is connected, and the passenger-side air outlet. Air whose temperature has been adjusted into the vehicle cabin is blown out from the ports 33 and 34 as conditioned air.

[0011]

In the configuration of the conventional air conditioner 1 as described above, the driver side outlets 31 and 32 installed in the vehicle instrument panel 50 and the assistant are usually used for air conditioning. The air distribution ratio to the seat side outlets 33 and 34 is 50%, 50% equally for the driver's seat side and the passenger side.
Had the following problems.

(1) In order to cope with the cooling capacity on the driver's seat side where the cooling load becomes large, it is necessary to increase the capacity of the air conditioner 1. (2) Even under the frequent driving condition that there is no occupant on the passenger seat side, the same air flow as the driver seat side is distributed to the passenger seat side, resulting in large energy loss. (3) During the cool-down operation in the inside air circulation mode, since the inside air suction port 11 of the air conditioner 1 is near the passenger-side outlets 33 and 34, the blow-out cooling air is short-circuited and the vehicle interior cool-down performance is deteriorated. did.

Therefore, the present invention solves the above-described problems of the conventional air conditioner 1, increases the cooling capacity of the driver's seat side,
It is an object of the present invention to provide a vehicle air conditioner and a vehicle air conditioning method capable of improving comfort, enabling energy-saving driving, and improving the cool-down performance in a vehicle compartment.

[0014]

Means for Solving the Problems (1) The present invention has been made to solve the above-mentioned problems, and as a first means, a driver-side air passage communicating with a driver-side outlet is provided. In a vehicle air conditioner in which an inlet of a ventilation duct having a passenger side air passage communicating with a passenger side air outlet is connected to an air conditioner unit, the air ventilation duct has an air volume V1 of the driver side air passage and the assistant. Air volume V2 of the seat side ventilation path
Are configured to satisfy the relationship of V1> V2.

According to the first means having the above-described structure, the amount of air blown out from the driver side outlet increases, the cooling capacity on the driver side increases, and the temperature is adjusted to the passenger side which is less frequently used. The air volume is reduced to reduce the air volume blown out from the passenger side air outlet.

Further, the wind velocity from the driver's seat side outlet increases, and a flow from the driver's seat side to the inside air suction port near the passenger seat is generated from the driver's seat side to the inside air inlet near the passenger seat. Cooldown performance is improved.

(2) As a second means, in the vehicle air conditioner according to the first means, the pressure loss in the driver side air passage is made smaller than the pressure loss in the passenger side air passage so that the V1 is reduced. > V2 is provided.

According to the second means, only the relationship between the pressure losses of the two air passages is set, and no special control is required.
The operation of the means can be achieved.

(3) As a third means, in the vehicle air conditioner of the first means or the second means, the flow path cross-sectional area of the driver-side air passage is such that the flow path cross-sectional area of the passenger-side air passage is cut off. Provided is a vehicle air conditioner characterized by being larger in area.

According to the third means, the action of the first means or the second means can be more reliably achieved only by setting the flow path cross-sectional areas of the two air passages.

(4) As a fourth means, in the vehicle air conditioner according to the first means or the second means, an air flow rate of the driver seat side air passage at the entrance of the air blow duct is changed to the passenger side air flow. Provided is a vehicle air conditioner, wherein a partition member is provided so as to be larger than a flow rate of a road.

According to the fourth means, the operation of the first means or the second means can be more reliably achieved only by installing the partition member at the inlet of the ventilation duct.

(5) Further, as a fifth means,
An air conditioning system for a vehicle, in which an inlet of a ventilation duct having a driver side outlet and a passenger side outlet is connected to an air conditioner unit, air-conditions the passenger compartment from the driver side outlet and the passenger side outlet. In a vehicle air-conditioning method for blowing air and air-conditioning the passenger compartment by sucking inside air from an inside air suction port provided in the vicinity of a passenger seat, the amount of air blown out from the driver side outlet is changed from the passenger side outlet to the passenger side. A flow rate from the driver's seat side to the inside air suction port through the rear of the cabin is formed in the vehicle cabin.

According to the fifth means, the amount of air blown out of the driver side outlet increases, the cooling capacity of the driver side increases, and the air volume of the temperature-controlled air to the infrequently used passenger side is reduced. In addition, the wind speed from the driver's seat side outlet increases, and a flow from the driver's seat side to the inside air suction port near the passenger seat from the driver's seat side occurs in the passenger compartment, Cool down performance in the vehicle interior is improved.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A vehicle air conditioner and a vehicle air conditioning method according to a first embodiment of the present invention will be described based on FIGS. 1 and 2 and with reference to FIG. FIG. 1 is an explanatory diagram of a configuration of a vehicle air conditioner of the present embodiment, and FIG. 2 is an explanatory diagram of a flow of VENT blown air in a vehicle cabin in the present embodiment.

In each of the drawings, FIG.
6 are denoted by the same reference numerals as those shown in FIG. 6, and the description thereof will not be repeated. This is the same in other embodiments described later.

As shown in FIG. 1, VEN of the present embodiment
The inlet 103 a of the T air duct 103 is connected to the outlet of the VENT air passage of the air conditioner unit 2 of the air conditioner 100 at the connection 5.

The VENT air duct 103 has driver-side outlets 131 and 132 and a passenger-side outlet 133 and 13.
4 is provided, and air whose temperature is adjusted is blown out from the instrument panel 50 as conditioned air.
Is the same as that shown in FIG.

However, the driver side outlets 131, 132
Sectional area A1 of the driver side air passage 130a communicating with
Is larger than the passage cross-sectional area A2 of the passenger side air passage 130b communicating with the passenger side outlets 133 and 134 (A1>
A2) The pressure loss in the air passage 130a on the driver's seat side is surely reduced by this setting.
Is set to be smaller than the pressure loss.

In the present embodiment as described above,
VENT ventilation duct 103 connected to connection part 5 of the VENT ventilation passage outlet of air conditioner unit 2 of air conditioner 100
Sets the passage cross-sectional area A1 of the air passage 130a communicating with the driver side outlets 131, 132 to the air passage 130 to the passenger seat side.
b is larger than the passage cross-sectional area A2, the pressure loss in the driver side air passage 130a is reduced by the passenger side air passage 1a.
It is smaller than the pressure loss of 30b.

Therefore, a large amount of temperature-controlled air blown from the air conditioner unit 2 and introduced into the VENT blow duct 103 flows into the blower passage 130a on the driver's seat side where the pressure loss (ventilation resistance) is small, and the operation is started. Ventilation path 130 on the seat side
The air volume V1 of a is the air volume V2 of the air passage 130b on the passenger seat side.
It becomes larger, and only the relationship between the pressure losses of the two air passages 130a and 130b is set, and no special control is required.
1> V2. Therefore, the airflow volume of the driver seat side outlets 131 and 132 is increased, and the cooling capacity of the driver seat side is increased, so that the comfort can be improved.

Further, the air volume of the temperature-controlled air to the side of the passenger seat, which is used less frequently, is reduced, and the outlets 133, 1 on the passenger side are reduced.
By reducing the amount of air blown from the air conditioner 34, energy saving operation can be performed.

Further, in the vehicle air conditioning method as described above, the wind speed blown out from the driver side outlets 131 and 132 increases, and as shown in FIG. Rear side of the vehicle interior (rear seat) 62
A flow 70 is generated toward the inside air suction port 11 near the passenger seat 63 through the side, and the flow 70 goes around the vehicle interior, so that the cool-down performance in the vehicle interior can be improved.

A vehicle air conditioner and a vehicle air conditioning method according to a second embodiment of the present invention will be described with reference to FIG. FIG.
VENT is a main part of the vehicle air conditioner of the present embodiment.
FIG. 2 is an explanatory view of a configuration of a blower duct, in which an air conditioner unit 2 is the same as the first embodiment shown in FIG. 1 and is not shown.

In FIG. 3, as in the first embodiment,
The VENT ventilation duct 203 of the present embodiment connected to the outlet of the VENT ventilation passage of the air conditioner unit 2 of the air conditioner 100 at the connection portion 5 has a driver seat side outlet 23.
1, 232 and a passenger side outlet 233, 234 are provided.

Inlet 203 of VENT air duct 203
In a, a partition member 235 for increasing the air flow rate to the driver-side air flow path 230a than the air flow rate to the passenger-side air flow path 230b is installed.

That is, at the entrance 203a of the VENT ventilation duct 203, an opening 235a communicating with the ventilation passage 230a on the driver's seat side and an opening 235b communicating with the ventilation passage 230b on the passenger's seat side are formed by the partition member 235.
5a is formed larger than the opening 235b. Therefore, the pressure loss of the air passage 230a can be surely smaller than the pressure loss of the air passage 230b.

In the present embodiment as described above, the conditioned air introduced from the air conditioner unit 2 to the vent ventilation duct 203 as the conditioned air is supplied to the partition member 23.
5, a large amount of air flows into the driver side air passage 230a, and the air volume V1 blown out from the driver side air outlets 231 and 232 becomes larger than the air volume V2 blown out from the passenger side air outlets 233 and 234 (V1> V2). , Partition member 23
By simply installing the fifth embodiment, no special control or the like is required, and the same operation and effect as those of the first embodiment can be obtained.

The embodiment of the present invention has been described above.
It is needless to say that the present invention is not limited to the above-described embodiment, and various changes may be made to the specific structure and configuration within the scope of the present invention.

For example, in the above embodiment, VENT
Although the ventilation ducts 103 and 203 have been described, the present invention is not limited to the VENT ventilation ducts 103 and 203, but may be any ventilation duct that is distributed to the driver's seat side and the passenger's seat side. The same can be applied to other air ducts.

[0041]

(1) According to the first aspect of the invention, the vehicle air conditioner is provided with a driver side air passage communicating with the driver side air outlet and a passenger side air air passage communicating with the passenger side air outlet. In the air conditioner for a vehicle in which an inlet portion of a ventilation duct having an air conditioning unit is connected to an air conditioning unit, the ventilation duct has an air volume V1 of the driver side air channel and an air volume V2 of the passenger side air channel.
Are configured so as to satisfy the relationship of V1> V2, so that the blowing air volume of the driver side outlet increases, the cooling capacity of the driver side increases, and the comfort can be improved. In addition, the airflow of the temperature-controlled air to the passenger seat, which is less frequently used, is reduced, and the airflow from the passenger-side air outlet is reduced, thereby enabling energy-saving operation.

Also, the wind velocity from the driver side outlet increases, and a flow is generated in the vehicle interior from the driver side through the rear side of the vehicle interior toward the inside air suction port near the passenger seat. Can improve the cool down performance.

(2) According to the invention of claim 2, claim 1
In the vehicle air conditioner described in the above, the pressure loss in the driver's seat side air passage is made smaller than the pressure loss in the passenger seat side air passage so as to satisfy the relationship of V1> V2. By simply setting the relationship of the pressure loss described above, no special control or the like is required, and the effect of the invention of claim 1 can be obtained.

(3) According to the invention of claim 3, claim 1
Alternatively, in the vehicle air conditioner according to claim 2, since the flow path cross-sectional area of the driver-side air flow path is configured to be larger than the flow path cross-sectional area of the passenger-side air flow path, the flow paths of both air flow paths are formed. Only by setting the cross-sectional area, the effect of the first or second aspect of the invention can be more reliably achieved.

(4) According to the invention of claim 4, claim 1
Alternatively, in the vehicle air conditioner according to claim 2, a partition member is provided at an inlet portion of the air duct so that an air volume ratio of the driver side air channel is larger than an air volume ratio of the passenger side air channel. With such a configuration, the effect of the first or second aspect of the present invention can be more reliably achieved only by installing the partition member at the inlet of the ventilation duct.

(5) According to the fifth aspect of the present invention, a vehicle air conditioning method is provided in which an inlet of a ventilation duct having a driver side outlet and a passenger side outlet is connected to an air conditioner unit. A vehicle air-conditioning method in which air-conditioning air is blown into the vehicle interior from the driver side air outlet and the passenger side air outlet by a device, and air is sucked from a room air inlet provided near the passenger seat to air the vehicle interior. At
The amount of air blown out from the driver side outlet is made larger than the amount of air blown out from the passenger side air outlet, so that a flow is formed in the same cabin from the driver seat side to the inside air inlet through the rear of the cabin. With this configuration, the amount of air blown from the driver side outlet increases, the cooling capacity of the driver side increases, the comfort can be improved, and the temperature of the air that is adjusted to the passenger side, which is less frequently used, is adjusted to the passenger side. In addition to reducing the amount of air flow, energy-saving operation becomes possible, the wind speed from the driver's seat side air outlet will increase, and from the driver's seat side to the inside air suction port near the passenger seat from the driver's seat side into the passenger compartment. The flow is generated, and the cool-down performance in the vehicle compartment can be improved.

[Brief description of the drawings]

FIG. 1 is a configuration explanatory diagram of a vehicle air conditioner according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram of a flow of VENT blown air in a vehicle cabin according to the present embodiment.

FIG. 3 is an explanatory diagram of a configuration of a VENT ventilation duct which is a main part of a vehicle air conditioner according to a second embodiment of the present invention.

FIG. 4 is a diagram illustrating the configuration of a conventional vehicle air conditioner.

FIG. 5 is an external perspective view of the vent ventilation duct of FIG. 4;

FIG. 6 is an external view of an instrument panel portion in a general vehicle compartment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 100 Air-conditioning apparatus 2 Air-conditioning unit 3, 103, 203 VENT ventilation duct 3a, 103a, 203a Inlet part 4 Casing 5 Connection part 6 Ventilation fan 7 Evaporator 8 Heater 9 Switching damper 10 Air mix damper 11 Inside air suction port 12 Outside air suction port 50 Instrument panel section 60 Vehicles 130a, 130b Ventilation path 131, 132 Driver side outlet 133, 134 Passenger side side outlet 230a, 230b Ventilation path 231 232 Driver side side vent 233, 234 Passenger side side vent 235 Partition member 235a, 235b Opening

Claims (5)

[Claims] 1. An air conditioner for a vehicle, wherein an inlet of a ventilation duct having a driver side air passage communicating with a driver side air outlet and a passenger side air passage communicating with a passenger side air outlet is connected to an air conditioner unit. In the apparatus, the air duct has an air volume V1 of the driver side air channel and an air volume V of the passenger seat air channel.
2 is configured to satisfy the relationship of V1> V2. 2. The vehicle air conditioner according to claim 1, wherein the pressure loss of the driver-side air passage is smaller than the pressure loss of the passenger-side air passage so that V1> V2.
The vehicle air conditioner is configured to satisfy the following relationship. 3. The vehicle air conditioner according to claim 1, wherein a flow path cross-sectional area of the driver-side air flow path is larger than a flow path cross-sectional area of the passenger-side air flow path. Vehicle air conditioner. 4. The air conditioner for a vehicle according to claim 1, wherein an air flow rate of the driver side air flow path at an inlet of the air blow duct is larger than an air flow rate of the passenger air flow path. A vehicle air conditioner comprising a partition member provided as described above. 5. An air conditioning system for a vehicle, wherein an inlet of a ventilation duct having a driver side outlet and a passenger side outlet is connected to an air conditioner unit, the driver side outlet and the passenger side outlet. A vehicle air-conditioning system that blows air-conditioned air into the passenger compartment from the front and air-conditions the vehicle interior by sucking inside air from an inside air suction port provided near a passenger seat. A vehicle air-conditioning method, comprising: increasing the amount of air blown out from a seat-side outlet to form a flow from the driver's seat side to the inside air inlet through the rear of the cabin in the vehicle interior.