JPH07251623A - Air conditioner - Google Patents

Abstract

PURPOSE:To independently vary air quantity blown from each air passage even when both of cooling ability of a Dr air passage blowing air to a driver seat side and the cooling ability of a Pa air passage blowing air to a front passenger seat side reach the maximum so as to improve operation feeling and independent control feeling in an air conditioner in which air conditioning is independently carried out on each of the driver seat side and the passenger seat side by means of a single blower. CONSTITUTION:In a film door 21 carrying out temperature regulation inside a Dr air passage 11, an opening which varies an opening area bypassing a heating means 14 to the maximum cooling area, in which a ratio of the opening area of the heating means 14 to the opening area bypassing the heating means 14 is 0:1, while closing the opening area of the heating means 14 is arranged. A film door regulating a temperature inside a Pa air passage is arranged in the same way. In this way, even in the maximum cooling ability, blow out air quantity can be controlled in each air passage, so that operation feeling and independent control feeling are 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 in which the temperature of air blown from a plurality of air passages can be independently changed.

[0002]

2. Description of the Related Art As an example of the prior art, the temperature of the air blown to the driver's seat side (hereinafter, Dr side) and the temperature of the air blown to the passenger seat side (hereinafter, Pa side) are independently adjusted. There is known an air conditioner for a vehicle that can be installed. This air conditioner includes a driver's seat side air passage that blows air to the Dr side (hereinafter, Dr air passage) and a passenger seat side air passage that blows air to the Pa side (hereinafter, Pa air passage).
With.

Inside the Dr air passage, a driver's seat side cooling means (hereinafter, Dr cooling means) is provided upstream, and a driver's seat side heating means (hereinafter, Dr heating means) is provided downstream thereof. Also,
In the Dr air passage, a driver side bypass passage (hereinafter, Dr bypass passage) that bypasses the Dr heating means is provided. Then, in the Dr air passage, a plate-shaped driver side air mix damper (hereinafter referred to as "Dr mix") that adjusts the amount of air passing through the Dr heating means and the amount of air passing through the Dr bypass passage to adjust the blowout temperature. A damper) is provided.

On the other hand, in the Pa air passage as well as in the Dr air passage, a passenger seat side cooling means (hereinafter, Pa cooling means) is provided upstream, and a passenger seat side heating means (hereinafter, Pa heating means) is provided downstream thereof. At the same time, a plate-shaped passenger side air mix damper (hereinafter, Pa mix damper) that adjusts the amount of air passing through the Pa heating means and the amount of air passing through the Pa bypass passage to adjust the blowout temperature is provided. ing.

In the air conditioner, the driver's seat side temperature setting means (hereinafter, Dr temperature setting device) for manually setting the Dr side temperature and the passenger seat side temperature setting means (hereinafter, referred to as the Dr side temperature setting device) for manually setting the Pa side temperature. , Pa temperature setting device). Then, the control device of the air conditioner sets D based on the Dr temperature setting device.
A target blowout temperature (hereinafter, DrTAO) blown out to the r side is calculated, the opening degree of the Dr mix damper is determined from the relationship between this DrTAO and the graph shown in the upper side of FIG. 16, and the blowout temperature on the Dr side is controlled. . Similarly, the control device of the air conditioner calculates a target blowout temperature (hereinafter, referred to as PaTAO) blown out to the Pa side based on the Pa degree setter, and calculates the PaTA
The opening degree of the Pa mix damper is determined from the relationship between O and the graph shown in the upper side of FIG. 16, and the outlet temperature on the Pa side is controlled.

When the occupant manually changes the set temperature of the Dr temperature setter or the Pa temperature setter, DrTAO or PaTAO is calculated in synchronization with it, and the opening degree of the Dr mix damper or Pa mix damper changes. , The temperature of the blown air changes.
Further, when the Dr temperature setter and the Pa temperature setter are set to different temperatures, the corresponding DrTAO and P are set.
aTAO is calculated, a difference occurs in the opening degree of the Dr mix damper and the Pa mix damper, and a difference occurs between the temperature blown to the Dr side and the temperature blown to the Pa side.

On the other hand, the air conditioner is provided with one blower for generating an air flow toward the room in the Dr air passage and the Pa air passage. The voltage applied to this blower is DrTA
Dr obtained from the relationship between O and the graph shown in the lower part of FIG.
It is determined by the average value (VDr + VPa) / 2 of the applied voltage VDr on the side and the applied voltage VPa on the Pa side obtained from the relationship between PaTAO and the graph shown in the lower side of FIG.

[0008]

However, even if the temperature of one of the temperature setters on the Dr side or the Pa side is changed, the blowout temperature on the side where the set temperature is changed may not change. Further, even if the temperature of one of the temperature setters is set to a temperature different from the temperature of the other temperature setter, there may be no difference in the temperature blown to the Dr side and the Pa side.

A specific example will be described based on maximum cooling. During periods when large cooling capacity is required, such as in summer, D
Maximum cooling capacity that lowers the temperature of the air blown from the r side (Dr mix damper completely closes the air passage of the Dr heating means and fully opens the Dr bypass passage. Door opening 0%
16) in the range of x in FIG. 16 and Pa
The cooling capacity for lowering the temperature of the air blown from the side may be the maximum capacity (a state in which the Pa mix damper completely closes the air passage of the Pa heating means and the Pa bypass passage is fully opened, and the door opening degree is 0%).

In such a case, even if the temperature of one of the temperature setters is changed, the calculated one TAO will be the other TAO.
In the case where it is within the range of x in FIG. 16 together with O, the door opening is both 0%, so the blowout temperature does not change. Also,
Even if the temperature of one of the temperature setters is set to a temperature different from the temperature of the other temperature setter, if the calculated DrTAO and PaTAO are both within the range of x in FIG. It becomes 0%, and there is no difference in blowout temperature. That is, in a state where the temperature control capacity of the air mix damper reaches the maximum cooling, the blowout temperature is the same even if the set temperatures on the Dr side and the Pa side are different.

On the other hand, if the occupant changes the set temperature,
I expect that the outlet temperature will change in synchronization with it. Therefore, even if one of the set temperatures is set to be hotter than the other set temperature, the occupant feels a very bad operation feeling unless the blowout temperature changes due to the above reason.
However, when the set temperature is operated, if the blown air volume on the side where the set temperature is changed changes, a feeling of operation can be obtained, and thus a reduction in operation feeling can be suppressed.

Even when TAO is lower than the boundary target outlet temperature (hereinafter referred to as TAO) at which the door opening becomes 0% (TAO <TAO), as shown in the lower graph of FIG. As the voltage rises, the applied voltage of the blower changes and the blown air volume changes. However, the applied voltage of the blower is the same as the applied voltage VDr obtained by DrTAO and the PaTAO.
Average value (VDr + VPa) / 2 with the applied voltage VPa obtained in
Therefore, the degree of change in the air volume was small in spite of the change in the set temperature, and it was insufficient to suppress the deterioration of the operation feeling. Further, since there is only one blower, the air volume on the side where the set temperature is not changed also changes, resulting in the same air volume on both the Dr side and the Pa side, and there is a problem that a sense of independent control cannot be obtained. It was

A concrete example will be described with reference to FIG.
It is assumed that DrTAO and PaTAO are both located at the point a in FIG. 15 (this point a does not cause TAO to reach point a even if the set temperature of the temperature setter is moved to the 1 ° hot side. is there). Then, for example, when the set temperature of the Pa temperature setting device is operated to the 1 ° hot side, PaTAO rises to the position of point c. Then, the voltage applied to the blower is DrT
The average applied voltage Vc of the applied voltage Va due to AO and the applied voltage Vb due to PaTAO is obtained, and the voltage applied to the blower actually changes from Va to Vc. On the Pa side, the expected air volume is the applied voltage Vb, but since only half the applied voltage Vc changes, the air volume drop is less than the occupant's expectation,
Operation feeling is bad. Further, on the Dr side, the air volume decreases even though the set temperature is not changed, and becomes the same as the Pa side air volume, so that an independent control feeling cannot be obtained.

[0014]

SUMMARY OF THE INVENTION An object of the present invention is to provide an air conditioner for producing an air flow in a plurality of air passages with a single blower, and the temperature varying capacity of the temperature adjusting means provided in each air passage is within the limit capacity range. Even if it reaches, it is to provide an air conditioner capable of independently changing the amount of air blown out from each air passage.

[0015]

The air conditioner adopts the following technical means in order to achieve the above object. (Means of Claim 1) An air conditioner comprises: (a-1) a first air passage for blowing air toward a first air conditioning zone in a room; and (b-1) a first air passage different from the first air conditioning zone. A second air passage for blowing air toward the two air conditioning zones;
-1) One blower for generating an air flow toward the room in the first air passage and the second air passage,
(D-1) a first heat exchanger provided in the first air passage for changing the temperature of the passing air, and (e-1) first heat for flowing the air whose temperature has been changed by the first heat exchanger. And (f-1) the first air passage, the first passage
A first bypass path for flowing air bypassing the heat exchange path;
1) Having a first film door movably provided in the first air passage, and by moving the first film door, the first opening provided in the first film door and the first film door are provided. The first heat exchange opening area with the heat exchange passage and the first bypass opening area between the first opening and the first bypass passage are changed, and the amount of air passing through the first heat exchange passage and the first bypass passage. First temperature adjusting means for changing the ratio with the amount of air passing through the passage, and (h-1) a second heat exchanger provided in the second air passage for changing the temperature of the passing air, -1) A second heat exchange passage through which the air whose temperature has been changed by the second heat exchanger flows, and (j-1) a second heat passage that is provided in the second air passage and that bypasses the second heat exchange passage. Two
It has a bypass path and (k-1) a second film door movably provided in the second air passage, and is provided on the second film door by moving the second film door. A second heat exchange opening area between the second opening and the second heat exchange passage and a second bypass opening area between the second opening and the second bypass passage are changed to pass through the second heat exchange passage. Second temperature adjusting means for changing the ratio of the air amount and the air amount passing through the second bypass passage.

(L-1) And, in the first film door, one of the first heat exchange opening area and the first bypass opening area is changed in the limit capacity range of the temperature variable capacity by the first temperature adjusting means. Instead, the pattern of the first openings is determined so as to change the other of the first heat exchange opening area and the first bypass opening area. (M-1) Further, the second opening of the second film door is
The second heat exchange opening area or the second bypass opening area without changing one of the second heat exchange opening area or the second bypass opening area in the limit capacity region of the temperature variable capacity by the second temperature adjusting means. The pattern of the second openings is determined so as to change the other.

(Means of Claim 2) The air conditioner is (a)
-2) A first air passage that blows air toward the first air conditioning zone in the room, and (b-2) a second air passage that blows air toward the second air conditioning zone different from the first air conditioning zone. , (C-2) one blower for generating an air flow toward the room in the first air passage and the second air passage, and (d-2) provided in the first air passage and pass therethrough. A first cooler for cooling air, and (e-2) this first cooler
A first heater provided in the first air passage downstream of the cooler for heating passing air; and (f-2) a first heat exchange passage for flowing air whose temperature has been changed by the first heater. (G
-2) a first bypass passage that is provided in the first air passage and flows air that bypasses the first heat exchange passage; and (h-2) a first bypass passage that is movable in the first air passage. A film door is provided, and by moving the first film door, a first heat exchange opening area between the first opening provided in the first film door and the first heat exchange passage, and the first opening. And a first bypass opening area between the first bypass passage and the first bypass opening area are changed to change a ratio of an air amount passing through the first heat exchange passage and an air amount passing through the first bypass passage. (I-2) a second cooler provided in the second air passage for cooling the passing air, and (j-2) provided in the second air passage downstream of the second cooler, A second heater for heating the passing air, and (k-2) a temperature by this second heater. A second heat 交路 flowing phased air,
(L-2) a second bypass passage that is provided in the second air passage and flows air that bypasses the second heat exchange passage, and (m-2)
A second film door movably provided in the second air passage is provided, and by moving the second film door, the second opening and the second heat exchange provided in the second film door are moved. Second heat exchange opening area with the passage, and the second
The second bypass opening area between the opening and the second bypass passage is changed, and the amount of air passing through the second heat exchange passage and the second bypass passage area are changed.
Second temperature adjusting means for changing the ratio with the amount of air passing through the bypass passage, (n-2) first temperature setting means for setting the temperature of the first air conditioning zone, and (o-2) this first First target temperature calculation means for calculating a first target outlet temperature blown out from the first air passage based on a temperature setting means,
(P-2) A first temperature at which the temperature of air blown out from the first air passage is changed by moving the first film door based on the first target blowout temperature calculated by the first target temperature calculation means. Control means, (q-2) second temperature setting means for setting the temperature of the second air conditioning zone, and (r-
2) Second target temperature calculation means for calculating a second target outlet temperature blown out from the second air passage based on the second temperature setting means, and (s-2) calculation of the second target temperature calculation means. Second temperature control means for moving the second film door based on the second target blowing temperature and varying the temperature of the air blown from the second air passage.

(R-2) Then, in the first film door, when the ratio of the first heat exchange opening area to the first bypass opening area is in the maximum cooling capacity range of approximately 0: 1, the first film door is opened. When the first film door is moved in the direction of reducing the bypass opening area, the pattern of the first opening is determined so as to reduce only the first bypass opening area without changing the first heat exchange opening area. To be done. (S-2) Further, in the second film door, the ratio of the second heat exchange opening area to the second bypass opening area is in the maximum cooling capacity area of approximately 0: 1, and the second bypass opening area is The pattern of the second opening is determined so as to reduce only the second bypass opening area without changing the second heat exchange opening area when the second film is moved in the direction of decreasing.

(Means of Claim 3) (a-3) In the first film door of the air conditioner of Claim 2, the first heat exchange opening area and the first bypass opening area are 0: 1. When changing to a state of not being and a state of 0: 1, the end of the first opening is located at the opening end of the first heat exchange path, and the first bypass opening area is increased in the direction. When the first film door is moved, the pattern of the first opening is determined so that the first bypass opening area increases up to the movement limit of the first film door. (B-3) Further, in the second film door of the air conditioner according to claim 2, the second heat exchange opening area and the second bypass opening area are not 0: 1 and 0: 1. When the second film door is moved in a direction in which the end portion of the second opening is located at the opening end portion of the second heat exchange path and the second bypass opening area is increased during the change to the state ,
The pattern of the second opening is determined so that the second bypass opening area increases up to the movement limit of the second film door.

[0020]

[Operation of the invention]

(Operation of Claim 1) By moving the first film door of the first temperature adjusting means, the ratio between the first heat exchange opening area and the first bypass opening area is changed. Then, the ratio between the amount of air passing through the first heat exchange passage and the amount of air passing through the first bypass passage changes, and the temperature of the air blown out from the first air passage to the first air conditioning zone is adjusted. Similarly, by moving the second film door of the second temperature adjusting means,
The ratio between the heat exchange opening area and the second bypass opening area changes. Then, the ratio between the amount of air passing through the second heat exchange passage and the amount of air passing through the second bypass passage changes, and the temperature of the air blown out from the second air passage to the second air conditioning zone is adjusted.

In the limit capacity range of the temperature variable capacity by the first temperature adjusting means, the ratio of the first heat exchange opening area to the first bypass opening area does not change, and the air blown from the first air passage to the first air conditioning zone. It becomes impossible to control the temperature. However,
In the limit capacity range of the temperature variable capacity by the first temperature adjusting means,
By moving the first film door, one of the first heat exchange opening area or the first bypass opening area does not change,
The other of the first heat exchange opening area and the first bypass opening area changes. As a result, the passage area in the first air passage changes, and the air volume of the air blown from the first air passage to the first air conditioning zone is adjusted.

Similarly, the ratio of the second heat exchange opening area to the second bypass opening area does not change in the limit capacity range of the temperature variable capacity by the second temperature adjusting means, and the second air passage to the second air conditioning zone. It becomes impossible to control the temperature of the air blown out into. However, by moving the second film door within the limit capacity range of the temperature variable capacity by the second temperature adjusting means, one of the second heat exchange opening area and the second bypass opening area does not change, and the second heat exchange area does not change. The other of the opening area and the second bypass opening area changes. As a result, the passage area in the second air passage changes, and the air volume of the air blown from the second air passage to the second air conditioning zone is adjusted.

[0023]

【The invention's effect】

(Effect of claim 1) The air conditioner according to claim 1
The opening patterns of the first and second openings of the first and second film doors are set to the first and second heat exchange opening areas or the first and second heat exchange opening areas in the limit capacity range of the temperature variable capacity by the first and second temperature adjusting means.
By providing one of the first and second heat exchange opening areas or the other of the first and second bypass opening areas without changing one of the second bypass opening areas, the temperature of the first and second temperature adjusting means can be changed. In the limit capacity range of the variable capacity, the air volume of the air blown to the first and second air conditioning zones can be adjusted independently.

That is, according to the present invention, only the opening patterns of the first and second openings of the first and second film doors are determined, and the first and second temperature adjusting means are used in the first range in the limit capacity range of the temperature variable capacity. The amount of air blown to the second air conditioning zone can be adjusted independently. For this reason, even in the limit capacity range of the temperature variable capacity by the first and second temperature adjusting means, the blowing air volume changes, so that the operation feeling is very excellent. Further, since the amount of air blown from the first air passage and the second air passage is adjusted independently, it is possible to give the occupant an independent control feeling.

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an air conditioner of the present invention will be described based on an embodiment applied to an air conditioner for a vehicle with reference to the drawings. [Structure of Embodiment] In this embodiment, claims 1 to 3 are provided.
1 and 2 are schematic diagrams of the air conditioning unit, and FIG. 3 is a block diagram of the control device. An air conditioner for a vehicle includes an air conditioning unit 1 arranged in a dashboard at a front portion of a vehicle compartment, a refrigeration cycle (not shown),
It is composed of a control device (described later).

(Description of Air Conditioning Unit 1) Air Conditioning Unit 1
Is a duct 2 that forms an air passage for sending air toward the passenger compartment.
Equipped with. The duct 2 is arranged in the vehicle compartment, and one end of the duct 2 is connected to a blower 3 having an inside / outside air switching unit (not shown).

The inside / outside air switching means (not shown) will be briefly described. The inside / outside air switching unit includes an inside air introducing port that communicates with the vehicle interior to introduce the inside air, and an outside air introducing port that communicates with the outside of the vehicle to introduce the outside air. The inside / outside air switching unit includes an inside / outside air switching damper, and the inside / outside air switching damper can switch the air guided into the duct 2 between the inside air and the outside air. The inside / outside air switching actuator that drives the inside / outside air switching damper is energized by a control device (described later) via an inside / outside air switching drive circuit (not shown).

The blower 3 includes a fan case 4, a fan 5,
Blower motor 6 (see Fig. 3)
Rotates the fan 5 according to the applied voltage, and sends the inside air or the outside air into the vehicle compartment through the duct 2. The blower motor 6 is energized and controlled by a control device (described later) via a motor drive circuit 7.

On the upstream side of the duct 2, cooling means 10 (for example, an evaporator of a refrigeration cycle) for cooling the air passing through the duct 2 is provided over the entire surface of the duct 2. The cooling means 10 in the Dr air passage 11 corresponds to the first cooler of the present invention, and similarly, the Pa air passage 1
The cooling means 10 in 2 corresponds to the 2nd cooler of this invention.
Downstream of the cooling means 10 of the duct 2 is the air conditioning zone on the driver's seat side (corresponding to the first air conditioning zone of the present invention.
Dr air passage 11 (corresponding to the first air passage of the present invention) for blowing air toward the Dr air conditioning zone (see FIG. 1) and an air conditioning zone on the passenger side (corresponding to the second air conditioning zone of the present invention) In the following, a Pa air passage 12 (second embodiment of the present invention) for blowing air toward a Pa air conditioning zone
It corresponds to an air passage) (see FIG. 2) and a partition wall 13 (see FIG. 1).

This Dr air passage 11 and Pa air passage 1
A heating means for heating the air passing through the Dr air passage 11 and the Pa air passage 12 (for example, a heater core using engine cooling water as a heat source) is provided in the partition wall 13 that divides
14 is provided so as to penetrate the partition wall 13. The heating means 14 in the Dr air passage 11 is the first of the present invention.
Corresponding to a heat exchanger, heating means 14 in the Dr air passage 11
The air passage that has passed is referred to as a Dr heat exchange passage 15 (corresponding to the first heat exchange passage of the present invention). Similarly, the heating means 14 in the Pa air passage 12 corresponds to the second heat exchanger of the present invention, and the air passage passing through the heating means 14 in the Pa air passage 12 is the Pa heat exchange passage 16 (the first heat exchanger of the present invention). Equivalent to 2 heat exchangers).

(Explanation of means for adjusting the outlet temperature on the Dr side) In the Dr air passage 11, two upper Dr bypass passages 17 (first of the present invention) that bypass both upper and lower sides of the heating means 14 are provided.
A lower Dr bypass passage 18 (corresponding to the first bypass passage of the present invention) is provided. Also, D
In the r air passage 11, the opening area of the Dr heat exchange passage 15, the opening area of the upper Dr bypass passage 17, and the opening area of the lower Dr bypass passage 18 are changed, and the amount of air passing through the heating means 14 is changed. And a temperature ratio of the amount of air passing through the upper Dr bypass passage 17 and the lower Dr bypass passage 18 to adjust the temperature of the air blown from the Dr air passage 11 to the Dr air conditioning zone. (Corresponding to the first temperature adjusting means of the present invention) is provided.

The Dr temperature adjusting means 19 of the present embodiment is a strip-shaped Dr having a flexibility which is movable while being passed to the upper Dr bypass passage 17, the Dr heat exchange passage 15 and the lower Dr bypass passage 18. Temperature control film door 21 (corresponding to the first film door of the present invention) and this Dr temperature control film door 2
Dr drive shaft 22 and Dr supporting both ends of 1
A driven shaft 23, a Dr guide means 24 for guiding the Dr temperature control film door 21 upstream of the heating means 14, and D
It is composed of a Dr temperature adjusting servomotor 25 (see FIG. 3) that rotationally drives the r drive shaft 22.

The Dr temperature control film door 21 is made of, for example, a polyethylene resin plastic film, and has a cloth molded therein to improve durability. Further, the Dr temperature control film door 21 includes the upper Dr bypass passage 17, the Dr heat exchange passage 15 and the lower Dr.
The bypass passage 18 is closely sealed to the periphery. Further, the Dr drive shaft 22 and the Dr driven shaft 23 are drivingly connected by a Dr wire (not shown), and when the Dr temperature adjustment servomotor 25 rotationally drives the Dr drive shaft 22, the Dr drive shaft 2
The rotation of 2 is driven by the Dr driven shaft 23 through the Dr wire.
And the Dr driven shaft 23 is also rotated together with the Dr drive shaft 22. On the other hand, Dr
The temperature control servomotor 25 is provided with a Dr temperature control drive circuit 26.
Energization is controlled by a control device (described later) via (see FIG. 3).

As shown in FIG. 4, the Dr temperature adjusting film door 21 has an opening area of the Dr heat exchange path 15 and an opening area of the upper Dr bypass path 17 depending on the moving position of the Dr temperature adjusting film door 21, Further, two upper Dr openings 27 and two lower Dr openings 28 (corresponding to the first openings of the present invention) for changing the opening area of the lower Dr bypass passage 18 are provided.

The upper Dr opening 27 and the lower Dr opening 28 completely close the Dr heat exchange passage 15 as the Dr temperature adjusting film door 21 moves (max cool 0/8 to max hot 8/8). The opening area of Dr heat exchanger 15 is 0
%), The upper Dr bypass passage 17 and the lower Dr bypass passage 18 are completely opened (the opening area of the upper Dr bypass passage 17 and the lower Dr bypass passage 18 is 100%) from the state of max cool (0/8) , The Dr heat exchange passage 15 is completely opened (the opening area of the Dr heat exchange passage 15 is 100%), and the upper Dr bypass passage 17 and the lower Dr bypass passage 18 are completely closed (the upper Dr bypass passage 17 and the lower Dr bypass passage 17). Max hot (8% of opening area of bypass 18)
/ 8).

Further, the Dr temperature control film door 21 of the present embodiment is used when the Dr temperature control film door 21 is moved from the max cool (0/8) to the predetermined opening (2/8) hot side (the present invention. When moving the first film door in the direction of decreasing the first bypass opening area of the), the Dr heat exchange path 15
Is completely closed (the opening area of the Dr heat exchange passage 15 is 0
%, That is, in a state where the first heat exchange opening area of the present invention does not change), the lower Dr bypass passage 18 is closed (lower D
The patterns of the upper Dr opening 27 and the lower Dr opening 28 are determined so that the opening area of the r bypass passage 18 decreases, that is, the first bypass opening area of the present invention decreases.

That is, the Dr temperature control film door 21 is
The opening area of the Dr heat exchange passage 15 and the opening areas of the upper Dr bypass passage 17 and the lower Dr bypass passage 18 while moving from the max cool (0/8) to the predetermined opening (2/8) hot side. Is in the maximum cooling capacity range of 0: 1, but the movement of the lower Dr opening 28 reduces only the opening area of the lower Dr bypass passage 18, and the applied voltage of the blower 3 is constant. Also, the amount of air blown from the Dr air passage 11 is reduced. On the contrary, while the Dr temperature control film door 21 is moved from the predetermined opening (2/8) to the max cool (0/8) cool side, the opening area of the Dr heat exchange path 15 and the upper Dr bypass path are increased. The ratio of the opening area of 17 and the opening area of the lower Dr bypass passage 18 is 0: 1, which is the maximum cooling capacity range.
By moving the lower Dr opening 28, the lower Dr bypass path 1
Only the opening area of 8 increases, and even if the voltage applied to the blower 3 is constant, the amount of air blown out from the Dr air passage 11 increases.

While the Dr temperature control film door 21 is moved from the predetermined opening (2/8) to the max hot (8/8), the opening area of the Dr heat exchange path 15 and the upper Dr bypass path 17 are increased. And the ratio to the opening area of the lower Dr bypass passage 18 changes from 0: 1 to 1: 0.
As the opening area of No. 5 increases, the opening areas of the upper Dr bypass passage 17 and the lower Dr bypass passage 18 decrease, and the temperature of the air blown from the Dr air passage 11 rises. On the contrary, while the Dr temperature control film door 21 is moved from the maximum hot (8/8) to the predetermined opening (2/8), the opening area of the Dr heat exchange path 15 and the upper Dr bypass path 17 and the lower side. The ratio of the opening area of the side Dr bypass passage 18 changes from 1: 0 to 0: 1, the opening area of the Dr heat exchange passage 15 decreases, and the upper Dr bypass passage 17 increases.
And the opening area of the lower Dr bypass passage 18 increases,
The temperature of the air blown out from the Dr air passage 11 decreases.

Inside the Dr air passage 11, cooling means 1 is provided.
D for bypassing the Dr heat exchange path 15, the upper Dr bypass path 17, and the lower Dr bypass path 18 in order to directly guide the cold air passing through 0 to the Dr face outlet (described later)
An r cold air bypass passage 31 and a Dr cold air bypass door 32 that opens and closes the Dr cold air bypass passage 31 are provided (cold air amount increasing means for increasing the cold air amount). The Dr cold air bypass door 32 is driven by a Dr cold air amount increasing servo motor (not shown), and this Dr cold air amount increasing servo motor is controlled by a control device (described later) via a Dr cold air amount increasing drive circuit (not shown). Energization is controlled by

(Explanation of the blowing mode switching means on the Dr side) D
At the downstream end of the r air passage 11, there is formed an air outlet that blows out the air passing through the Dr air passage 11 toward each part of the Dr air conditioning zone. This outlet is a Dr face outlet 33 that mainly blows cold air toward the driver's head and chest from the center of the front of the room, a Dr foot outlet 34 that mainly blows warm air toward the driver's feet, and the front. It mainly comprises a Dr defroster outlet 35 that blows out warm air toward the glass.

In the downstream portion of the Dr air passage 11,
Dr face outlet 33, Dr foot outlet 34, Dr
Dr mode switching door means 36 for switching the blowing mode by changing the opening area of the defroster outlet 35 is arranged. The Dr mode switching door means 36 has the same basic configuration as the Dr temperature adjusting means 19 described above.

That is, the Dr mode switching door means 36 is
A flexible strip-shaped member having an opening (not shown) that moves along the opening of the duct 2 communicating with each of the air outlets 33, 34, 35 to change the opening area of each of the air outlets 33, 34, 35. Dr mode film door 37, Dr drive shaft 38 and Dr driven shaft 39 that support both ends of Dr mode film door 37, and Dr intermediate shaft 41 that extends Dr mode film door 37 along the inner wall of duct 2. , Dr for rotating the Dr drive shaft 38
And a mode servo motor 42 (driving means, see FIG. 3). The Dr mode servo motor 42 is
Energization is controlled by a control device (described later) via the Dr mode drive circuit 43 (see FIG. 3).

Further, the Dr drive shaft 38 and the Dr driven shaft 39 are drivingly connected by a Dr wire (not shown), and when the Dr mode servomotor 42 rotationally drives the Dr drive shaft 38, the Dr drive shaft 38 is driven. Is transmitted to the Dr driven shaft 39 via the Dr wire, and the Dr driven shaft 39 is also rotated together with the Dr drive shaft 38.

(Explanation of means for adjusting the outlet temperature on the Pa side) The Pa air passage 12 has the same structure as the Dr air passage 11. Specifically, as shown in FIG. 2, the Pa air passage 12 includes two upper Pa bypass passages 51 (corresponding to a second bypass passage of the present invention) that bypass the upper and lower sides of the heating means 14 and a lower Pa bypass passage. A passage 52 (corresponding to the second bypass passage of the present invention) is provided. Also, Pa
In the air passage 12, the opening area of the Pa heat exchange passage 16, the opening area of the upper Pa bypass passage 51, and the opening area of the lower Pa bypass passage 52 are changed to change the heating means 1
The temperature of the air blown from the Pa air passage 12 to the Pa air conditioning zone is adjusted by adjusting the ratio of the amount of air passing through 4 to the amount of air passing through the upper Pa bypass passage 51 and the lower Pa bypass passage 52. Pa temperature control means 5
3 (corresponding to the second temperature adjusting means of the present invention) is provided.

The Pa temperature adjusting means 53 of the present embodiment is a strip-shaped Pa having flexibility that is movable while being passed to the upper Pa bypass passage 51, the Pa heat exchange passage 16 and the lower Pa bypass passage 52. Temperature control film door 54 (corresponding to the second film door of the present invention) and the Pa temperature control film door 5
4 and Pa drive shaft 55 and Pa supporting both ends of
A driven shaft 56, a Pa guiding means 57 for guiding the Pa temperature adjusting film door 54 on the upstream side of the heating means 14, and a P guiding means 57.
a Pa temperature adjustment servomotor 58 (see FIG. 3) that rotationally drives the drive shaft 55.

The Pa temperature control film door 54 is made of, for example, a polyethylene resin plastic film, and has a cloth molded therein to improve durability. In addition, the Pa temperature control film door 54 includes the upper Pa bypass path 51, the Pa heat exchange path 16 and the lower Pa path.
The periphery of the bypass passage 52 is closely contacted and sealed. Further, the Pa drive shaft 55 and the Pa driven shaft 56 are drivingly connected by a Pa wire (not shown). When the Pa temperature adjusting servomotor 58 rotationally drives the Pa drive shaft 55, the Pa drive shaft 5
5 rotation is Pa driven shaft 56 via Pa wire
And the Pa driven shaft 56 is also rotated together with the Pa drive shaft 55. On the other hand, Pa
The temperature adjustment servomotor 58 is provided with a Pa temperature adjustment drive circuit 59.
Energization is controlled by a control device (described later) via (see FIG. 3).

As shown in FIG. 5, the Pa temperature adjusting film door 54 has an opening area of the Pa heat exchange passage 16 and an opening area of the upper Pa bypass passage 51 depending on the moving position of the Pa temperature adjusting film door 54. An upper Pa opening 61 and a lower Pa opening 62 (corresponding to the second opening of the present invention) for changing the opening area of the lower Pa bypass passage 52 are provided.

The upper Pa opening 61 and the lower Pa opening 62 completely close the Pa heat exchange path 16 as the Pa temperature adjusting film door 54 moves (max cool 0/8 to max hot 8/8). The opening area of the Pa heat exchanger 16 is 0
%), The upper Pa bypass passage 51 and the lower Pa bypass passage 52 are completely opened (the opening area of the upper Pa bypass passage 51 and the lower Pa bypass passage 52 is 100%) from the max cool (0/8) state. , Pa heat exchange passage 16 is completely opened (the opening area of Pa heat exchange passage 16 is 100%), and upper Pa bypass passage 51 and lower Pa bypass passage 52 are completely closed (upper Pa bypass passage 51 and lower Pa bypass passage 51. Max hot (8% opening area of bypass 52)
/ 8).

Further, the Pa temperature control film door 54 of the present embodiment is used when the Pa temperature control film door 54 is moved from the max cool (0/8) to the predetermined opening (2/8) hot side (the present invention. When moving the second film door in the direction of decreasing the second bypass opening area of the), the Pa heat exchanger 16
Is completely closed (when the opening area of the Pa heat exchanger 16 is 0
%, That is, in a state where the second heat exchange opening area of the present invention does not change), the lower Pa bypass passage 52 is closed (lower P
The patterns of the upper Pa opening 61 and the lower Pa opening 62 are determined so that the opening area of the a bypass passage 52 decreases, that is, the second bypass opening area of the present invention decreases.

That is, the Pa temperature control film door 54 is
The opening area of the Pa heat exchange path 16 and the opening areas of the upper Pa bypass path 51 and the lower Pa bypass path 52 while moving from the max cool (0/8) to the hot side by the predetermined opening (2/8). Is in the maximum cooling capacity range of 0: 1, but the movement of the lower Pa opening 62 reduces only the opening area of the lower Pa bypass passage 52, and the applied voltage of the blower 3 is constant. Also, the amount of air blown out from the Pa air passage 12 decreases. Conversely, while the Pa temperature adjustment film door 54 is moved from the predetermined opening (2/8) to the Max Cool (0/8) cool side, the opening area of the Pa heat exchange path 16 and the upper Pa bypass path are increased. The ratio of the opening area of 51 and the opening area of the lower Pa bypass path 52 is 0: 1, which is the maximum cooling capacity range.
By moving the lower Pa opening 62, the lower Pa bypass path 5
Only the opening area of No. 2 increases, and even if the voltage applied to the blower 3 is constant, the amount of air blown out from the Pa air passage 12 increases.

While the Pa temperature adjusting film door 54 is moved from the predetermined opening (2/8) to the max hot (8/8), the opening area of the Pa heat exchange path 16 and the upper Pa bypass path 51 are increased. And the ratio of the opening area of the lower Pa bypass path 52 to 0: 1 changes from 0: 1 to Pa heat exchange path 1
As the opening area of 6 increases, the opening areas of the upper Pa bypass passage 51 and the lower Pa bypass passage 52 decrease, and the temperature of the air blown out from the Pa air passage 12 rises. On the contrary, while the Pa temperature control film door 54 is moved from the maximum hot (8/8) to the predetermined opening (2/8), the opening area of the Pa heat exchange path 16 and the upper Pa bypass path 51 and the lower Pa bypass path 51 and the lower Pa bypass path 51 are changed. The ratio of the opening area of the side Pa bypass path 52 changes from 1: 0 to 0: 1, the opening area of the Pa heat exchange path 16 decreases, and the upper Pa bypass path 51 increases.
And the opening area of the lower Pa bypass path 52 increases,
The temperature of the air blown from the Pa air passage 12 decreases.

Inside the Pa air passage 12, the cooling means 1 is provided.
P for bypassing the Pa heat exchange path 16, the upper Pa bypass path 51, and the lower Pa bypass path 52 in order to directly guide the cold air passing through 0 to the Pa face outlet (described later).
The a-cool air bypass passage 63 and the Pa-cool air bypass door 64 that opens and closes the Pa-cool air bypass passage 63 are provided (cold-air amount increasing means for increasing the cold-air amount). The Pa cold air bypass door 64 is driven by a Pa cold air amount increasing servo motor (not shown), and this Pa cold air amount increasing servo motor is controlled by a control device (described later) via a Pa cold air amount increasing drive circuit (not shown). Energization is controlled by

(Explanation of the outlet mode switching means on the Pa side) P
At the downstream end of the a air passage 12, there is formed an air outlet for blowing the air passing through the Pa air passage 12 toward each part of the Pa air conditioning zone. This outlet is a Pa face outlet 65 that mainly blows cold air toward the driver's head and chest from the center of the front of the room, a Pa foot outlet 66 that mainly blows warm air toward the driver's feet, and the front. It is mainly composed of a Pa defroster outlet 67 that blows warm air toward the glass.

Further, in the downstream portion of the Pa air passage 12,
Pa face outlet 65, Pa foot outlet 66, Pa
Pa mode switching door means 68 for changing the opening area of the defroster outlet 67 to switch the outlet mode is arranged. The Pa mode switching door means 68 has the same basic configuration as the Pa temperature adjusting means 53 described above.

That is, the Pa mode switching door means 68 is
A flexible strip-shaped member having an opening (not shown) that moves along the opening of the duct 2 communicating with each of the outlets 65, 66, 67 to change the opening area of each of the outlets 65, 66, 67. A Pa mode film door 69, a Pa drive shaft 71 and a Pa driven shaft 72 that support both ends of the Pa mode film door 69, and a Pa intermediate shaft 73 that allows the Pa mode film door 69 to follow the inner wall of the duct 2. , Pa that drives the Pa drive shaft 71 to rotate
And a mode servo motor 74 (driving means, see FIG. 3). The Pa mode servo motor 74 is
Energization is controlled by a control device (described later) via the Pa mode drive circuit 75 (see FIG. 3).

The Pa drive shaft 71 and the Pa driven shaft 72 are drivingly connected by a Pa wire (not shown). When the Pa mode servomotor 74 drives the Pa drive shaft 71 to rotate, the Pa drive shaft 71 is rotated. Is transmitted to the Pa driven shaft 72 via the Pa wire, and the Pa driven shaft 72 is also rotated together with the Pa drive shaft 71.

(Description of control device 80) Each electric functional component of the air conditioner (internal / external air switching drive circuit, motor drive circuit 7, Dr temperature adjustment drive circuit 26, Dr mode drive circuit 43, Pa temperature adjustment not shown) The operation of the drive circuit 59, the Pa mode drive circuit 75, the refrigerant compressor of the refrigeration cycle (not shown), etc. is controlled by the control device 80 shown in FIG.

The controller 80 uses a computer, and is powered by a battery (not shown) mounted on the vehicle through an ignition switch (not shown) to be in an operating state. RO in the computer according to the input signals of various sensors
A program stored in advance in M is executed to control each electric functional component to control the air conditioning state in the vehicle compartment.

The control device 80 receives, as an input signal, the required temperature (hereinafter, Dr set temperature) T of the Dr air conditioning zone that is air-conditioned by the air blown from the Dr air passage 11.
Dr temperature setting means 82 capable of manually setting setDr (corresponding to the first temperature setting means of the present invention), the required temperature of the Pa air conditioning zone that is air-conditioned by the air blown out from the Pa air passage 12 (hereinafter, Pa set temperature ) Pa temperature setting means 83 capable of manually setting Tset Pa (corresponding to the second temperature setting means of the present invention) and an inside air temperature sensor 84 detecting the temperature Tr of the passenger compartment air (in the middle of the Dr air conditioning zone and the Pa air conditioning zone) Provided), the outside air temperature sensor 8 for detecting the outside air temperature Tam
5, Dr solar radiation sensor 86 that detects the solar radiation amount TsDr on the Dr air conditioning zone side, Pa solar radiation sensor 87 that detects the solar radiation amount TsPa on the Pa air conditioning zone side, and after-evaporation temperature that detects the temperature TE of the air that has passed through the cooling means 10. Signals from a sensor (not shown), a water temperature sensor (not shown) that detects the temperature of the air that has passed through the heating means 14, and a temperature TW of the cooling water supplied to the heating means 14 are input.

Then, when the occupant selects an auto air conditioner switch (not shown), the controller 80 controls the Dr air passage 11 so that the temperature of the Dr air conditioning zone is set to the temperature set by the Dr temperature setting means 82. Dr target temperature calculation means 91 for calculating the Dr target blowout temperature TAODr (corresponding to the first target blowout temperature of the present invention) to be blown out.
(Corresponding to the first target temperature calculation means of the present invention) and Dr
Dr target outlet temperature T calculated by the target temperature calculation means 91
The opening degree (moving position) of the Dr temperature adjusting film door 21 so that the air of AODr is blown out from the Dr air passage 11.
From Max Cool (0/8) to Max Hot (8 /
The function of the Dr temperature control means 92 (corresponding to the first temperature control means of the present invention) for controlling during 8) is provided.

Similarly, when the automatic air conditioner switch is selected, the controller 80 changes the temperature of the Pa air conditioning zone to P
a Pa target temperature calculation means 93 for calculating the Pa target outlet temperature TAOPa (corresponding to the first target outlet temperature of the present invention) blown out from the Pa air passage 12 so that the temperature is set by the temperature setting means 83. (Corresponding to the second target temperature calculating means of the present invention) and the Pa target temperature calculating means 93.
The opening (moving position) of the Pa temperature adjusting film door 54 is set to the maximum cool (0) so that the air having the Pa target blowout temperature TAOPa calculated in step 2 is blown out from the Pa air passage 12.
/ 8) -Max hot (8/8)
Temperature control means 94 (corresponding to the second temperature control means of the present invention)
Function is provided.

The control device 80 of the present embodiment independently and automatically controls the outlet mode blown to the Dr air conditioning zone and the outlet mode blown to the Pa air conditioning zone. (Not shown)
An air volume control unit (not shown) for automatically controlling the air volume of the blower 3 is provided.

The controller 80 of this embodiment is provided with a cooldown control means for fully opening the Dr cold air bypass door 32 or the Pa cold air bypass door 64 during the cooldown control to increase the air volume and reduce the blowing noise. In this cooldown control means, the Dr target outlet temperature TAODr or the Pa target outlet temperature TAOPa is equal to the first temperature (for example, -1).
(0 ° C.) or less, the Dr cold air bypass door 32 or the Pa cold air bypass door 64 is fully opened, and the Dr target outlet temperature TAODr or the Pa target outlet temperature TAOPa is set to the second value.
When the temperature rises above the temperature (for example, −5 ° C.), the Dr cold air bypass door 32 or the Pa cold air bypass door 64 is fully closed.

Further, in the bi-level mode, the control device 80 of the present embodiment controls the solar radiation correction control means for opening the Dr cold air bypass door 32 or the Pa cold air bypass door 64 on the solar radiation side in order to cool the solar radiation side. Equipped with. In the bilevel mode, the solar radiation correction control means increases the opening degree of the Dr cold air bypass door 32 or the Pa cold air bypass door 64 in accordance with the amount of solar radiation, and widens the reduction range of the face blowing temperature.

(Explanation of Flowchart) Next, the control of the air conditioner executed by the controller 80 will be described with reference to the flowchart of FIG. First, when the controller 80 is powered by the battery and the air conditioner switch is selected (start), initialization processing is performed in step S1.
In step S2, the sensor signal of each sensor and the operation panel 81
The signal of the instruction signal of is read.

Subsequently, in step S3, the Dr air passage 11
The Dr target blowout temperature TAODr of the air blown out more and the Pa target blowout temperature TAOPa of the air blown out from the Pa air passage 12 are calculated by the following equations.

[Equation 1] TAO Dr = Kset-Tset Dr-Kr-Tr-K
am ・ Tam-Ks ・ TsDr + C

[Equation 2] TAOPa = Kset-Tset Pa-Kr-Tr-K
am · Tam−Ks · TsPa + C Here, Kset is a temperature setting gain, Kr is an inside air temperature gain, Kam is an outside air temperature gain, Ks is an insolation gain, and C is a correction constant. Stored in the ROM. Note that T shown in Equation 1
The calculation of AODr is based on the operation of the Dr target temperature calculation means 91, and the calculation of TAOPa shown in Formula 2 is based on the operation of the Pa target temperature calculation means 93.

Next, in step S4, the applied voltage of the blower 3 is determined. In this step S4, first, according to FIG. 7, the Dr target outlet temperature TAO calculated in step S3 is calculated.
The Dr applied voltage VDr is calculated from Dr, and then the Pa applied voltage VPa is calculated from the Pa target outlet temperature TAOPa calculated in step S3 according to FIG. Then, the Dr and Pa applied voltages VDr and VPa are averaged, and the average value V is set as the applied voltage of the blower 3.

In the next step S5, the Dr air passage 11
The outlet of the air blown out from the air outlet and the outlet of the air blown out from the Pa air passage 12 are determined. Dr air passage 11
The blowout port of the air blown out from determines the blowout port mode from the Dr target blowout temperature TAODr according to FIG. Similarly,
The outlet of the air blown out from the Pa air passage 12 is shown in FIG.
Accordingly, the outlet mode is determined from the Pa target outlet temperature TAOPa. In addition, in the present embodiment, an example in which the blowing modes are provided in stages (three stages of the face mode, the bi-level mode, and the foot mode) has been shown. Film doors 37,6
9 may be moved continuously or in multiple stages to change the blowing mode.

Next, in step S6, the Dr air passage 11
The temperature of the air blown out of the chamber becomes the Dr target blowout temperature TAODr, and the temperature of the air blown out from the Pa air passage 12 is Pa.
The target opening degree SWDr of the Dr temperature adjusting film door 21 and the target opening degree SWPa of the Pa temperature adjusting film door 54 are calculated by the following mathematical expressions so that the target blowout temperature TAOPa is obtained.

[Formula 3] SWDr = {(TAO Dr-TE) / (TW-T
E)} × 100 (%)

[Formula 4] SWPa = {(TAOPa-TE) / (TW-T
E)} × 100 (%)

Next, in step S7, the above step S4
A control signal is output to the motor drive circuit 7 so that the applied voltage V obtained in step 3 is applied to the blower 3. The control in steps S4 and S7 is based on the operation of the air volume control means.

In step S8, a control signal is output to the Dr temperature adjustment drive circuit 26 so that the target opening degrees SWDr and SWPa obtained in step S6 are obtained, and Pa temperature adjustment is performed so that the target opening degree SWPa is obtained. The control signal is output to the drive circuit 59. In addition, the mathematical expression 3 in step S6
The calculation of SWDr shown in (1) and the output of the control signal to the Dr temperature adjustment drive circuit 26 in step S8 are based on the operation of the Dr temperature control means 92, and the calculation of SWPa shown in equation 4 in step S6 and step S8 Pa at
The output of the control signal to the temperature adjustment drive circuit 59 is based on the operation of the Pa temperature control means 94.

In step S9, a control signal is output to the Dr mode drive circuit 43 so that the outlet of the air blown out from the Dr air passage 11 becomes the outlet mode obtained in step S5, and the Pa air passage 12 A control signal is output to the Pa mode drive circuit 75 so that the outlet of the air blown out from the outlet is in the outlet mode obtained in step S5. Note that step S5 and step S9
Is controlled by the operation of the air outlet mode control means. Then, after that, the process returns to step S2.

[Operation of Embodiment] Next, the operation of the Dr, Pa temperature control film doors 21 and 54 will be described in comparison with the conventional Dr temperature control film door 101 (see FIG. 11).
Since the Dr and Pa temperature control film doors 21 and 54 perform the same operation, only one Dr temperature control film door 21 will be described here.

(Description of Conventional Dr Temperature Control Film Door 101) First, FIG. 11 shows patterns of the upper Dr opening 102 and the lower Dr opening 103 of the conventional Dr temperature control film door 101 used for comparison. The upper Dr opening 102 and the lower D of the conventional Dr temperature control film door 101
The r opening 103, the opening area of the Dr heat exchange passage 15, the upper Dr bypass passage 17 and the lower Dr bypass passage along with the movement of the Dr temperature control film door 101 (max cool 0/8 to max hot 8/8). The ratio to the opening area of 18 continuously changes from 0: 1 to 1: 0,
The opening area of the upper Dr bypass passage 17 and the lower Dr bypass passage 18 are continuously decreased while the opening area of the above is continuously increased.

More specifically, the conventional Dr temperature control film door 101 is set to Max Cool 0/8 to Max Hot 8/8.
The operation of the upper Dr opening 102 when moved to will be described.
Immediately after the upper Dr opening 102 starts moving from the Max Cool to the hot side, the upper Dr opening 102 continuously increases the opening area of the Dr heat exchange path 15 and reaches the Max hot when the Dr heat exchange path 15 is reached. The maximum opening area is shown in the lower graph of FIG. 12 (see solid line J1).

On the other hand, the conventional Dr temperature control film door 10
Until the opening of No. 1 reaches Max Cool 0/8 to the opening of 4/8, the upper Dr opening 102 is connected to the upper Dr bypass passage 17
Although the opening area is maximized, the upper Dr opening 102 moves to the upper Dr side when moving from the opening 4/8 to the max hot 8/8.
The reduction of the opening area of the bypass passage 17 is started, and when the maximum hot is reached, the opening area of the upper Dr bypass passage 17 is set to 0 (the upper graph of FIG. 12, see the alternate long and short dash line J2).

Similarly, a conventional Dr temperature control film door 1
Opening 01 is Max Cool 0/8 ~ Max Hot 8
The operation of the lower Dr opening 103 when moved to / 8 will be described. Immediately after the lower Dr opening 103 starts moving from the Max Cool to the hot side, the lower Dr opening 103 starts decreasing the opening area of the lower Dr bypass passage 18, and the opening 6
Between / 8 and Maxhot, the opening area of the lower Dr bypass passage 18 is set to 0 (upper graph of FIG. 12, dashed line J).
See 3). Note that the total opening area of the upper Dr bypass passage 17 and the lower Dr bypass passage 18 continuously decreases as the conventional Dr temperature adjustment film door 101 is moved from Max Cool 0/8 to Max Hot 8/8. Yes (Fig. 1
2 upper graph, see solid line J4).

On the other hand, the conventional Dr temperature control film door 10
When 1 is moved from Max Cool 0/8 to Max Hot 8/8, the blowing air volume of the Dr air passage 11 when the applied voltage of the blower 3 is constant and the blowing mode is constant is shown by the solid line J5 in FIG. As shown, the air volume gradually decreases. The reason for the decrease is that the maximum opening area of the Dr heat exchange passage 15, the upper Dr bypass passage 17, and the lower Dr
This is due to the ratio with the maximum opening area of the bypass passage 18.

Also, the conventional Dr temperature control film door 10 is used.
The blowout temperature of the Dr air passage 11 when moving 1 from Max Cool 0/8 to Max Hot 8/8 is Dr Cool Exchange Path 15 from Max Cool 0/8 to Max Hot 8/8.
The opening area of the upper Dr bypass passage 17 and the lower Dr bypass passage 18 continuously decreases as the opening area of No. 2 continuously increases, so that the blowout temperature continuously changes as shown by the solid line J6 in FIG. To rise.

(Film Door 21 for Dr Temperature Control of this Embodiment)
Description) First, the operation of the upper Dr opening 27 when the Dr temperature adjusting film door 21 is moved from Max Cool 0/8 to Max Hot 8/8 will be described. The upper Dr opening 27 sets the opening area of the Dr heat exchange passage 15 to 0 until the upper Dr opening 27 starts moving from the max cool 0/8 to the hot side and reaches a predetermined opening 2/8. Then, the upper Dr opening 27 starts to continuously increase the opening area of the Dr heat exchange passage 15 from the predetermined opening degree 2/8, and when the maximum hot is reached, the opening area of the Dr heat exchange passage 15 is maximized. (See the lower graph in FIG. 12, the alternate long and short dash line A1).

On the other hand, in the upper Dr opening 27, the opening degree of the Dr temperature adjusting film door 21 is from Max Cool 0/8 to 4 degrees.
The opening area of the upper Dr bypass passage 17 is maximized until reaching / 8, but when moving from the opening degree 4/8 to the max hot 8/8, the upper Dr opening 27 is changed to the upper Dr bypass passage 1
The opening area of 7 starts to decrease, and when the maximum hot is reached, the opening area of the upper Dr bypass passage 17 is set to 0 (the upper graph of FIG. 12, see the alternate long and short dash line A2).

Similarly, the operation of the lower Dr opening 28 when the Dr temperature adjusting film door 21 is moved from Max Cool 0/8 to Max Hot 8/8 will be described. Immediately after the lower Dr opening 28 starts moving from Max Cool to the hot side, the lower Dr opening 28 starts decreasing the opening area of the lower Dr bypass passage 18, and during the opening 6/8 to Max Hot. Sets the opening area of the lower Dr bypass passage 18 to 0 (see the upper graph of FIG. 12, the alternate long and short dash line A3).

The upper Dr bypass passage 17 and the lower Dr bypass passage 17
The total opening area of the bypass passage 18 is Dr as in the conventional case.
As the temperature control film door 21 is moved from Max Cool 0/8 to Max Hot 8/8, the temperature decreases continuously (see the upper graph of FIG. 12, solid line A4).

On the other hand, when the Dr temperature control film door 21 is moved from Max Cool 0/8 to Max Hot 8/8, the voltage applied to the blower 3 is constant and the blowing mode is constant. The blown air volume is shown in Fig. 1.
As shown by the alternate long and short dash line A5, Max Cool 0/8
Up to the predetermined opening 2/8, the opening area of the Dr heat exchange passage 15 does not increase, so the air volume decreases sharply, and the air volume gradually decreases from the predetermined opening 2/8 to the max hot 8/8.

Further, the blowing temperature of the Dr air passage 11 when the Dr temperature adjusting film door 21 is moved from Max Cool 0/8 to Max Hot 8/8 is Max Cool 0 /
Since the opening area of the Dr heat exchange passage 15 does not increase from 8 to the predetermined opening degree 2/8, as shown in the range a of the alternate long and short dash line A6 in FIG. It blows out from the air passage 11. Subsequently, the opening area of the Dr heat exchange passage 15 continuously increases and the opening areas of the upper Dr bypass passage 17 and the lower Dr bypass passage 18 continuously decrease from the predetermined opening degree 2/8 to the max hot. Then
As shown by the alternate long and short dash line A6, the blowout temperature continuously rises.

(Explanation of Operation when Both Dr Side and Pa Side are in Maximum Cooling Area) Next, Dr target temperature calculating means 91
The target temperature TAODr calculated by Dr is lower than the lower boundary target temperature TAOi (TAODr <TAOi).
Also, the operation in the state where the Pa target outlet temperature TAOPa calculated by the Pa target temperature calculating means 93 is lower than the low temperature side boundary target outlet temperature TAOi (TAOPa <TAOi) will be described with reference to FIG. .

Dr target blow-out temperature TAODr and P
a The target outlet temperature TAOPa is the low-temperature boundary target outlet temperature TAO ((Dr, Pa) temperature control film door 21,
It is assumed that the openings of 54 are both smaller than the predetermined opening of 2/8 (opening smaller than the predetermined opening of 2/8) (the position of the point shown in this example is to operate the set temperature Tset to the 1 ° hot side). Even if the target outlet air temperature TAO does not reach the low-temperature boundary target outlet air temperature TAO, even if it is set at a position). In this state, the Dr temperature control film door 21 and the Pa temperature control film door 54 are
In both cases, the heating means 14 is completely closed to cool the Dr air-conditioning zone and the Pa air-conditioning zone (Dr air passage 11 and Pa).
There is no difference in the outlet temperature of the air passage 12).

On the other hand, the voltage applied to the blower 3 is obtained from the position of the point a and the graph on the lower side of FIG. That is, the applied voltage V of the blower 3 is (Va + Va) / 2, that is, V
a. Further, Dr, Pa temperature control film door 21,
Since the opening degree of 54 is also the same, the amount of air blown from the Dr air passage 11 and the Pa air passage 12 is the same.

Next, the occupant, for example, Pa set temperature Tset
An example will be described in which only Pa is set higher by 1 °. The Dr target outlet temperature TAODr is located at the point A, and the Pa target outlet temperature TAOPa rises to the point C. In this state,
Both the Dr temperature adjusting film door 21 and the Pa temperature adjusting film door 54 are in a state in which the heating means 14 is completely closed, and there is no difference in the blowing temperature between the Dr air passage 11 and the Pa air passage 12.

On the other hand, the applied voltage of the blower 3 is an average voltage (Va + Vb) / 2 of the applied voltage Va obtained from the position of the point a and the applied voltage Vb obtained from the position of the point c, that is, the applied voltage of the blower 3. Drops to Vc. Also, Dr
Although the opening degree of the temperature control film door 21 does not change, the opening degree of the Pa temperature control film door 54 moves to the hot side, so that only the opening area of the lower Pa bypass path 52 decreases.
The air volume blown out from the Pa air passage 12 is reduced by Vα as shown by the solid line B1 in the lower graph of FIG.

Here, regarding the target air volume on the Pa air passage 12 side where the set temperature was changed, the applied voltage of the blower 3 was Vb. The actual voltage applied to the blower 3 is Vc, but since the air volume is reduced by Vα due to the movement of the Pa temperature adjustment film door 54, the air volume actually blown out from the Pa air passage 12 is (Vc− Vα) and approaches the target air volume Vb on the Pa air passage 12 side. That is, when the Pa set temperature Tset Pa is set to 1 ° higher, the Pa air passage 12
The amount of air blown out is greatly reduced compared to the conventional one, and P
a The required air volume of the air passage 12 is approached.

[Effects of the Embodiment] As shown in the above operation, in the maximum cooling capacity range of the limit of the temperature variable capacity by the Dr, Pa temperature adjusting means 19, 53, the change of the target outlet temperature (TAODr or TAOPa). The air volume of the air blown to the Dr, Pa air-conditioning zone is independently adjusted according to.
That is, even in the maximum cooling capacity range where the temperature controllability of the Dr and Pa temperature control means 19 and 53 is at the limit, the blown air volume is the target blown air temperature (TAO Dr and TAOPa).
It changes independently according to. Therefore, the air flow rate changes when the temperature setting means (Tset Dr or Tset Pa) is operated, so that the operation feeling is very excellent. In addition, the occupant can be given a sense of independent control by changing the amount of air blown from the Dr air passage 11 and the Pa air passage 12.

[Modification] In the above embodiment, the solar radiation sensor (Dr solar radiation sensor) for detecting the solar radiation amount in the first air conditioning zone.
And a solar radiation sensor (Pa) that detects the amount of solar radiation in the second air conditioning zone.
The solar radiation sensor) is provided separately, but the first solar radiation sensor is provided based on the output of one solar radiation sensor provided in the center of the left and right of the passenger compartment, for example, in the middle of the first air conditioning zone and the second air conditioning zone. , The second target outlet temperature may be calculated.
In the above embodiment, an example in which the room temperature is detected by one inside air sensor provided in the middle of the first air conditioning zone and the second air conditioning zone has been shown. However, the inside air temperature of each of the first air conditioning zone and the second air conditioning zone is independent. The temperature sensor may be used to calculate the first and second target blowout temperatures.

Although an example in which the cooling means is arranged on the upstream side of the heating means (first and second heat exchangers) has been shown, the cooling means may be omitted in an air conditioner only for heating. The heating means has been shown as an example of the first and second heat exchangers. However, in an air conditioner that does not require heating means, the present invention is applied by applying cooling means to the first and second heat exchangers. Is also good. In the above embodiment, an example was shown in which the opening area of the bypass passage was changed without changing the opening area of the heating means at the time of maximum cooling capacity, but conversely, the opening area of the bypass passage was changed at the time of maximum heating capacity. Alternatively, the opening area of the heating means may be changed.

An example in which two independent air-conditioning zones are set by independent temperature setters (temperature setting means) is shown, but the set temperature is raised or lowered with respect to the temperature set by one temperature setting means. Then, a bias type temperature setting means for setting another temperature may be used. Although the example in which the set temperature of the air conditioning zone is set to the target temperature has been shown, a temperature setting means for changing the required temperature to the cool side or the hot side may be used in a volume type. That is, a temperature setting means for varying the required temperature depending on the number of pushes to the dial type, lever type, hot side or cool side may be used. Although the example of automatically controlling the first and second film doors of the temperature adjusting means has been shown, the first and second film doors may be manually operated using operating means such as dials and levers.

Although the present invention is applied to an air conditioner having two air passages, it may be applied to an air conditioner in which three or more air passages are independently temperature-controlled in three or more air conditioning zones. . Although the example applied to the vehicle air conditioner is shown, it may be provided so as to air-condition at two or more locations of a general building such as home, store, commercial, factory, and company building.

Although the example in which the cold air bypass passage for guiding the cool air directly to the face air outlet side is provided by bypassing the temperature adjusting means is shown, the cold air bypass passage may not be provided.

[Brief description of drawings]

FIG. 1 is a schematic view of an air conditioning unit showing a Dr air passage (embodiment).

FIG. 2 is a schematic view of an air conditioning unit showing a Pa air passage (embodiment).

FIG. 3 is a block diagram of a control device (embodiment).

FIG. 4 is a diagram showing patterns of an upper Dr opening and a lower Dr opening (Example).

FIG. 5 is a diagram showing patterns of an upper Pa opening and a lower Pa opening (Example).

FIG. 6 is a flowchart showing the operation of the control device (embodiment).

FIG. 7 is a graph showing the relationship between the target outlet temperature of the Dr air passage and the applied voltage of the blower (Example).

FIG. 8 is a graph showing the relationship between the target outlet temperature of the Pa air passage and the voltage applied to the blower (Example).

FIG. 9 is a graph showing a relationship between a target outlet temperature and a driver side outlet mode (Example).

FIG. 10 is a graph showing a relationship between a target outlet temperature and a passenger side outlet mode (Example).

FIG. 11 is a diagram showing patterns of an upper Dr opening and a lower Dr opening of a conventional Dr air-conditioning film door used for comparison.

FIG. 12 is a graph showing the relationship between the opening degree of the Dr temperature adjustment film door and the cold air area and the warm air area.

FIG. 13 is a graph showing the relationship between the opening degree of the Dr temperature control film door and the amount of air blown from the Dr air passage.

FIG. 14 is a graph showing the relationship between the opening degree of the Dr temperature adjustment film door and the blowing temperature of the Dr air passage.

FIG. 15 is a graph for explaining the operation of the embodiment.

FIG. 16 is a graph for explaining the operation of the conventional technique.

[Explanation of symbols]

 3 Blower 10 Cooling means (first and second coolers) 11 Dr Air passage (first air passage) 12 Pa Air passage (second air passage) 14 Heating means (first and second heat exchanger) 15 Dr heat Intersection path (first heat exchange path) 16 Pa Heat exchange path (second heat exchange path) 17 Upper Dr bypass path (first bypass path) 18 Lower Dr bypass path (first bypass path) 19 Dr temperature adjusting means ( First temperature adjusting means) 21 Dr temperature control film door (first film door) 27 Upper Dr opening (first opening) 28 Lower Dr opening (first opening) 51 Upper Pa bypass path (second bypass path) 52 Lower Side Pa bypass path (second bypass path) 53 Pa temperature control means (second temperature control means) 54 Pa temperature control film door (second film door) 61 Upper Pa opening (second opening) 62 Lower Pa opening (second 2 openings) 8 Dr temperature setting means (first temperature setting means) 83 Pa temperature setting means (second temperature setting means) 91 Dr target temperature calculation means (first target temperature calculation means) 92 Dr temperature control means (first temperature control means) 93 Pa target temperature calculation means (second target temperature calculation means) 94 Pa temperature control means (second temperature control means)

Claims (3)

[Claims] 1. (a-1) A first air passage for blowing air toward a first air conditioning zone in the room; (b-1) Air toward a second air conditioning zone different from the first air conditioning zone. A second air passage that blows out air, (c-1) one blower that causes an air flow toward the room in the first air passage and the second air passage, and (d-1) the first air A first heat exchanger provided in the passage for changing the temperature of passing air; (e-1) a first heat exchange passage for flowing the air whose temperature has been changed by the first heat exchanger; (f-1) A first bypass passage that is provided in the first air passage and flows air that bypasses the first heat exchange passage; and (g-1) a first film door that is movably provided in the first air passage. Having the first film door, by moving the first film door The first heat exchange passage between the first heat exchange passage and the first heat exchange passage, and the first heat exchange passage between the first heat exchange passage and the first heat exchange passage. First temperature adjusting means for changing the ratio of the amount of air passing therethrough and the amount of air passing through the first bypass passage, and (h-1) provided in the second air passage to change the temperature of the passing air. A second heat exchanger; (i-1) a second heat exchange passage through which air whose temperature has been changed by the second heat exchanger is flown; (j-1) provided in the second air passage; A second bypass passage for flowing air bypassing the intersection passage, and (k-1) a second film door movably provided in the second air passage. By moving the second film door, A second heat exchange opening between a second opening provided in the second film door and the second heat exchange passage The product and the second bypass opening area between the second opening and the second bypass passage, and the ratio of the amount of air passing through the second heat exchange passage to the amount of air passing through the second bypass passage is changed. In the air conditioner provided with the 2nd temperature control means to change, (l-1) The 1st film door is the 1st above-mentioned in the limit capacity range of temperature variable capacity by the 1st temperature control means.
The pattern of the first openings is determined so as to change the other of the first heat exchange opening area or the first bypass opening area without changing one of the heat exchange opening area or the first bypass opening area; -1) The second opening of the second film door does not change one of the second heat exchange opening area or the second bypass opening area in the limit capacity range of the temperature varying capacity of the second temperature adjusting means, The air conditioner, wherein the pattern of the second opening is determined so as to change the other of the second heat exchange opening area and the second bypass opening area. 2. (a-2) a first air passage for blowing air toward a first air conditioning zone in the room; and (b-2) air toward a second air conditioning zone different from the first air conditioning zone. A second air passage for blowing out air, (c-2) one blower for generating an air flow toward the room in the first air passage and the second air passage, and (d-2) the first air. A first cooler provided in the passage for cooling the passing air; and (e-2) a first heater provided in the first air passage downstream of the first cooler for heating the passing air. (F-2) a first heat exchange passage through which the air whose temperature has been changed by the first heater flows, and (g-2) air provided in the first air passage and bypassing the first heat exchange passage. A first bypass passage, and (h-2) a first fill movably provided in the first air passage. And a first heat exchange passage between the first opening provided in the first film door and the first heat exchange passage, and the first opening. First temperature adjusting means for changing a first bypass opening area with the first bypass passage and changing a ratio of an air amount passing through the first heat exchange passage and an air amount passing through the first bypass passage. (I-2) a second cooler provided in the second air passage for cooling the passing air, and (j-2) provided in the second air passage downstream of the second cooler and passing therethrough. A second heater for heating the air to be heated, (k-2) a second heat exchange passage for flowing the air whose temperature has been changed by the second heater, (l-2) provided in the second air passage, and A second bypass path for flowing air that bypasses the second heat exchange path; and (m-2) the second sky. A second film door movably provided in the passage, and by moving the second film door, the second opening provided in the second film door and the second heat exchange passage The amount of air passing through the second heat exchange passage and the amount of air passing through the second bypass passage are changed by changing the second heat exchange opening area and the second bypass opening area between the second opening and the second bypass passage. And (n-2) a first temperature setting means for setting the temperature of the first air conditioning zone, and (o-2) based on the first temperature setting means, First target temperature calculating means for calculating a first target outlet temperature blown out from the first air passage, and (p-2) the first target outlet temperature calculated by the first target temperature calculating means. Move the film door to blow from the first air passage. A first temperature control means for varying the temperature of the discharged air; (q-2) a second temperature setting means for setting the temperature of the second air conditioning zone; and (r-2) based on the second temperature setting means. A second target temperature calculating means for calculating a second target outlet temperature blown out from the second air passage, and (r-2) the second target outlet temperature calculated by the second target temperature calculating means. An air conditioner comprising: a second temperature control unit that moves the second film door and changes the temperature of the air blown out from the second air passage, wherein (s-2) the first film door is the The ratio of the first heat exchange opening area to the first bypass opening area is approximately 0: 1.
To the maximum cooling capacity range of the first bypass opening area in the direction of decreasing the first bypass opening area.
When moving the film door, the pattern of the first opening is determined so as to reduce only the first bypass opening area without changing the first heat exchange opening area, (t-2) the second film The door has a ratio of the second heat exchange opening area to the second bypass opening area of approximately 0: 1.
To the maximum cooling capacity range of the second bypass opening area in the direction of decreasing the second bypass opening area.
The air conditioner, wherein when moving the film door, the pattern of the second opening is determined so as to reduce only the second bypass opening area without changing the second heat exchange opening area. 3. The air conditioner according to claim 2, wherein (a-3) the first film door has a state in which the first heat exchange opening area and the first bypass opening area are not 0: 1. When changing to a 0: 1 state, the end of the first opening is located at the opening end of the first heat exchange path, and the first bypass opening area is increased in the direction of increasing the first bypass opening area.
When moving the film door, the pattern of the first opening is determined so that the first bypass opening area increases to the movement limit of the first film door, and (b-3) the second film door is When the second heat exchange opening area and the second bypass opening area change between a state other than 0: 1 and a state of 0: 1, the end portion of the second opening has the end of the second heat exchange path. The second bypass opening is located at the opening end and increases in the second bypass opening area.
The air conditioner, wherein when the film door is moved, the pattern of the second opening is determined so that the second bypass opening area is increased to the movement limit of the second film door.