JP7010793B2 - Vehicle air conditioner and air conditioning control method using it - Google Patents

Description

The present invention relates to a vehicle air conditioner having a center vent outlet and a side vent outlet, and the outlet can be opened and closed by a vent door. In particular, a vehicle having a function of repeatedly increasing or decreasing the air volume sent from the outlet. The present invention relates to an air conditioner for use and an air conditioner control method using the air conditioner.

A center-side outlet for blowing air flow from the central part of the passenger compartment in the width direction toward the occupants in the air-conditioned area, and an air flow outlet for blowing air flow from the side parts of the passenger compartment toward the occupants in the air-conditioned area. It is equipped with a side outlet, and each outlet is provided with a means for changing the blowing direction (louver device) that changes the blowing direction of the air-conditioned air blown into the vehicle interior, and the means for changing the blowing direction (louver device) is subjected to a swinging motion. A vehicle air conditioner provided with a giving actuator is known (see, for example, Patent Document 1).
In such a configuration, by operating the actuator, the louver device swings and the direction of the air supplied to the occupant changes, and the feeling of airflow felt by the occupant becomes unsteady (variable). By doing so), it becomes possible to improve the comfort of the occupants.

Japanese Unexamined Patent Publication No. 11-129727

However, in the above configuration, it is necessary to provide a louver device equipped with a swing mechanism at each outlet in order to make the feeling of airflow felt by the occupant variable, which increases the number of parts and the product cost. There is an inconvenience. In addition, it is necessary to secure a space for mounting a louver device equipped with a swing mechanism at each air outlet, and there is a disadvantage that it cannot be dealt with only by changing the design on the air conditioner side.

The present invention has been made in view of the above circumstances, and is a vehicle air conditioner capable of repeatedly changing the amount of air blown from the center vent blown portion and the side vent blown portion without increasing the number of parts. The main issue is to provide an air conditioning control method using.

In order to achieve the above problems, the vehicle air conditioner according to the present invention includes an air conditioner in which an air flow path is formed and the temperature of air arranged in the air conditioner case and introduced into the air conditioner case. The temperature adjusting means for adjusting the air pressure and the center vent connecting duct for guiding air to the center vent blowing grill provided on the downstream side of the temperature adjusting means and provided near the center in the vehicle width direction are connected, and the center is connected. The air is guided to the center vent outlet having a center vent opening that sends air to the vent connection duct and the side vent outlet grill that is adjacent to this center vent outlet and is provided on the side in the vehicle width direction. The air conditioning that can open and close the side vent outlet, the center vent opening, and the side vent opening, which are connected to the side vent connection duct and have a side vent opening that sends air to the side vent connection duct. A vehicle air conditioner having a vent door supported by a case.
The vent door is a rotation shaft pivotally supported by the air conditioning case and a plurality of plate-shaped portions extending in different radial directions from the rotation shaft, and is a center vent opening / closing opening / closing that enables opening / closing of the center vent opening. A side having a plurality of plate-shaped portions extending in different radial directions at a portion different from the portion of the rotating shaft where the opening / closing portion for center vent is formed, and the side vent opening 36 can be opened / closed. Has an opening and closing part for venting,
The downstream end of the center vent outlet or the connection end connected to the center vent outlet of the center vent connection duct, and the downstream end of the side vent outlet or the side vent outlet of the side vent connection duct. At least one of the connection ends connected to the portion is formed to be curved along the rotation locus of the opening / closing portion, and a vent air volume regulating wall that narrows the gap between the opening / closing portion over a predetermined rotation region is provided. Provide,
An actuator that supplies a driving force for rotationally driving the vent door, a control unit that drives and controls the actuator so as to reciprocate the vent door, and a control unit.
It is characterized by having.

Therefore, it is connected to the downstream end of the center vent outlet or the connection end connected to the center vent outlet of the center vent connection duct, and the downstream end of the side vent outlet or the side vent outlet of the side vent connection duct. At least one of the connection ends is provided with a vent air volume control wall that narrows the gap between the opening and closing part over a predetermined rotation area. The passage area of the air is reduced, and the amount of air sent from the corresponding opening (blowing portion) can be reduced. Therefore, if the actuator is driven and controlled by the control unit so as to reciprocate the vent door, the flow rates of the center vent blown air and the side vent blown air can be alternately increased or decreased, and the angle change louver dedicated to the vicinity of the blowout grill can be used. Even if no device is provided, it is possible to make the feeling of airflow felt by the occupant non-stationary.

Here, various modes can be considered as the vent air volume regulating wall. For example, the vent air volume regulating wall is rotated from the edge of the center vent opening at the downstream end of the center vent blowing portion to the opening / closing portion for the center vent. The center vent extension portion extended along the locus, and the side vent opening / closing portion extending from the edge of the side vent opening at the downstream end of the side vent outlet along the rotation locus of the side vent opening / closing portion. At least one of the extension portions for side vents may be provided.
With such a configuration, it is possible to create an unsteady feeling of airflow simply by changing the structure of the vent opening portion of the air conditioning unit.

Further, a curved wall for center vent formed along the rotation locus of the opening / closing portion for center vent on the inner wall of the connection end portion connecting the vent air volume regulating wall to the center vent outlet portion of the connection duct for center vent. , And at least one of the curved walls for side vents formed along the rotation locus of the opening / closing portion for side vents is provided on the inner wall of the connection end portion connected to the side vent outlet portion of the connection duct for side vents. May be configured.
With such a configuration, it is possible to create an unsteady feeling of airflow simply by changing the structure of the connection end portion of the connection duct.

When the center vent extension portion and the side vent extension portion are provided, the center vent extension portion and the side vent extension portion are provided in the rotation direction of the rotation shaft. It is desirable to provide them in different rotation regions.
With such a configuration, it is possible to easily realize a large change in the air volume distribution of the air sent from the center vent outlet and the side vent outlet simply by changing the position of the vent door in the rotational direction. , It is possible to increase the variable feeling of air flow felt by the occupants.

Further, even when the center vent curved wall and the side vent curved wall are provided, the center vent curved wall and the side vent curved wall rotate differently in the rotation direction of the rotation axis. It is desirable to provide it in the area.
With such a configuration, it is possible to easily realize a large change in the air volume distribution leading to each of the center vent outlet grill and the side vent outlet grill by simply changing the position of the vent door in the rotation direction. , It is possible to increase the variable feeling of air flow felt by the occupants.

The above configuration consists of the downstream end of the center vent outlet or the connection end connected to the center vent outlet of the center vent connection duct, and the downstream end of the side vent outlet or the side vent outlet of the side vent connection duct. The air volume distribution between the center vent outlet and the side vent outlet was changed by providing a vent air volume regulation wall at least one of the connection ends connected to the vent door, but by changing the configuration of the bend door itself. The air volume distribution between the center vent outlet and the side vent outlet may be varied.

That is, the vehicle air conditioner of the present invention includes an air conditioner in which an air flow path is formed, and a temperature adjusting means for adjusting the temperature of air arranged in the air conditioner case and introduced into the air conditioner case. A center vent connection duct that guides air to the center vent outlet grill provided on the downstream side of the temperature adjusting means and provided near the center in the vehicle width direction is connected, and air is supplied to the center vent connection duct. A side vent connection duct that guides air to the side vent outlet grill that is adjacent to the center vent outlet and is provided on the side in the vehicle width direction is connected to the center vent outlet that has the center vent opening to be sent out. A side vent outlet having a side vent opening for sending air to the side vent connection duct, and a vent door supported by the air conditioning case so that the center vent opening and the side vent opening can be opened and closed. It is an air conditioner for vehicles that has
The vent door is a rotation shaft pivotally supported by the air conditioning case and a plurality of plate-shaped portions extending in different radial directions from the rotation shaft, and is a center vent opening / closing opening / closing that enables opening / closing of the center vent opening. A side vent that is a plurality of plate-shaped portions extending in different radial directions at a portion different from the portion of the rotating shaft where the opening / closing portion for center vent is formed, and which enables opening / closing of the side vent opening. With an opening and closing part,
The opening / closing portion for the center vent and the opening / closing portion for the side vent extend in different radial directions.
An actuator that supplies a driving force for rotationally driving the vent door,
A control unit that drives and controls the actuator so that the vent door reciprocates.
May have.

According to such a configuration, since the opening / closing part for the center vent and the opening / closing part for the side vent extend in different directions, the amount of delivery from the center vent opening is increased by adjusting the rotation position of the vent door. Since it is possible to form a mode of increasing the amount of air sent from the side vent opening in different rotation regions of the vent door, the air volume of the center vent blown wind and the side vent blown wind can be formed simply by rotating the vent door reciprocating. Can be increased or decreased alternately, and the feeling of airflow felt by the occupant can be made unsteady without providing a dedicated angle changing louver device in the vicinity of the outlet grill.

In any of the configurations described above, the vent door may be one in which the driving force from the actuator is transmitted directly to the rotating shaft or via a link mechanism. Further, the plurality of center vent opening / closing portions and the plurality of side vent opening / closing portions may have various modes, and are composed of, for example, two plate-shaped portions extending in directions 180 ° different from the rotation axis. You may do so.

As an air conditioning control method for reciprocating the vent door using the above configuration, the vehicle air conditioner has a function of setting a blowout mode and a function of adjusting the amount of air introduced into the air flow path. The control unit is set to at least a blowout mode in which the vehicle air conditioner sends out air from the center vent opening and the side vent opening, and the amount of air introduced into the air flow path is not the maximum. When set, the actuator may be driven and controlled so as to reciprocate the vent door.

During the air-conditioning control set to the blowout mode in which air is sent out from the center vent opening and the side vent opening, the temperature control in the vehicle interior is targeted in the temperature control transition period that maximizes the amount of air introduced into the air flow path. It is preferable to give priority to the temperature control state in order to form a comfortable interior environment, and even if the reciprocating rotation control of the vent door is performed in such a transitional period, the contribution to comfort is small. .. Therefore, the reciprocating rotation control of the bend door is not performed until the above conditions are satisfied, and the vent door is reciprocally rotated after the temperature control in the vehicle interior is stable (after the above conditions are satisfied) to improve the comfort of the occupant. It will be possible to improve.

Here, the movement of reciprocating the vent door is such that the amount of air blown out from the side vent opening is longer than the amount of air blown out from the center vent opening, and the amount of air blown out from the center vent opening is from the side vent opening. It is better to move it so that it is longer than the time when it becomes larger than the amount of blowout.
The area closer to the side in the vehicle width direction in the vehicle interior is more susceptible to the heat load from the outside than the area closer to the center. Therefore, by making the time when the amount of air blown out from the side vent opening larger than the amount of air blown out from the center vent opening longer than the time when the amount of air blown out from the center vent opening becomes larger than the amount of air blown out from the side vent opening. It is possible to mitigate the influence of heat load from the outside.

Further, the center vent opening, the side vent opening, and the vent door for opening and closing these are separately provided on the driver's seat side and the passenger seat side, and the solar radiation for detecting the amount of solar radiation on the driver's seat side and the passenger seat side. In the case of having a sensor, when the amount of solar radiation differs between the driver's seat side and the passenger seat side, the control unit measures the amount of air blown out from the side vent opening from the center vent opening on the side where the amount of solar radiation increases. It is preferable to drive and control the actuator so that the time when the amount of air blown out from the center vent opening is longer than the time when the amount of air blown out from the center vent opening is longer than the time when the amount of air blown out from the side vent opening is larger than the amount of air blown out.
On the side with a large amount of solar radiation, the time when the amount of blown out from the side vent opening is larger than the amount of blown out from the center vent opening is larger than the time when the amount of blown out from the center vent opening is larger than the amount of blown out from the side vent opening. By lengthening it, it is possible to alleviate the feeling of heat on the side with a large amount of solar radiation while giving a feeling of unsteady airflow.

Here, specifically, the time when the amount of air blown out from the side vent opening is larger than the amount of air blown out from the center vent opening is longer than the time when the amount of air blown out from the center vent opening is larger than the amount of air blown out from the side vent opening. There are various possible methods, but for example, the time for stopping the vent door at a position where the amount of air blown out from the side vent opening is larger than the amount of air blown out from the center vent opening is set. It may be longer than the time for stopping the vent door at a position where the amount is larger than the amount blown out from the side vent opening.

Further, in the rotation section of the vent door where the amount of air blown out from the side vent opening is larger than the amount of air blown out from the center vent opening, the amount of air blown out from the center vent opening is larger than the amount of air blown out from the side vent opening. It may be larger than the number of rotation sections of the vent door.

Alternatively, the rotation speed when the vent door is in a rotation section in which the amount of air blown out from the side vent opening is larger than the amount of air blown out from the center vent opening, and the amount of air blown out from the center vent opening is from the side vent opening. The rotation speed of the actuator may be controlled by the control unit so as to be slower than the rotation speed when the rotation section is in a rotation section larger than the blowout amount of.

Further, the center vent opening, the side vent opening, and the vent door for opening and closing these are provided separately on the driver's seat side and the passenger seat side, and when a boarding sensor for confirming whether or not the passenger is in the passenger seat is provided. The control unit stops the reciprocating rotation of the vent door on the passenger seat side and reciprocates only the vent door on the driver's seat side when it is determined by the boarding sensor that the passenger seat is not boarded. The actuator may be driven and controlled so as to be driven.
According to such a configuration, it is possible to suppress unnecessary energy consumption by not controlling the vent door to rotate back and forth with respect to the passenger seat in which no person is sitting.

Furthermore, in the case of providing a speed change amount detecting means for detecting the change amount of the vehicle speed in a unit time and a rotation angle change amount detecting means for detecting the change amount of the rotation angle in the unit time of the handle of the vehicle. In the control unit, the change amount of the vehicle speed in the unit time detected by the speed change amount detecting means is within a predetermined change range, and the handle of the handle in the unit time detected by the rotation angle change amount detecting means. When it is determined that the amount of change in the angle of rotation is within a predetermined change range, the actuator may be driven and controlled so as to reciprocate the vent door.
The driver feels during monotonous driving in which the amount of change in vehicle speed in a unit time is within a predetermined range of change and the amount of change in the angle of rotation of the handle in a unit time is within a predetermined range of change. By making the feeling of flow non-stationary, it becomes possible to perform a drowsiness prevention effect and awakening assist.

As described above, according to the present invention, the downstream end of the center vent outlet, the connection end connected to the center vent outlet of the center vent connection duct, and the downstream end of the side vent outlet or the side vent. A vent air volume control wall is provided at least at one of the connection end connected to the side vent outlet of the connection duct, or the center vent opening / closing part and side vent opening that can open / close the center vent opening of the vent door can be opened / closed. The side vent opening / closing part is extended in a different radial direction, and the actuator that drives the vent door to rotate is driven and controlled by the control unit so that the vent door reciprocates, so the number of parts increases. It is possible to change the amount of air blown out from the center vent blowing portion and the side vent blowing portion unsteadily without the need for, and only by changing the design on the air conditioner side. For this reason, the feeling of airflow felt by the occupant can be made unsteady without installing a dedicated angle changing louver device near the outlet grill, and the comfort of the occupant can be improved with a small number of parts. Is possible.

FIG. 1 (a) is a cross-sectional view showing an overall configuration example of the vehicle air conditioner according to the present invention, and FIG. 1 (b) shows a defrost blowout portion and a vent blowout portion provided in the upper part of the air conditioner case. It is a plan view which shows. FIG. 2 is a diagram showing the relationship between the defrost outlet portion and the vent outlet portion provided in the upper part of the air conditioning case and the connection duct connected to each outlet portion, and FIG. 2A is a cross-sectional view of the upper part of the air conditioning case. The figure showing the relationship between the air conditioning case and the connecting duct, (b) is a diagram showing the relationship between the plan view of the upper part of the air conditioning case and the connecting duct. FIG. 3 is a perspective view showing the bent outlet portion in a state where the vent door is attached and the vent door attached to the vent outlet portion side by side in the first embodiment. FIG. 4 is a diagram showing an embodiment in which a vent door on the driver's seat side and a vent door on the passenger's seat side are separately formed, and these are connected to be rotatably supported by an air conditioning case. 5A and 5B are cross-sectional views showing a bent blowout portion in the first embodiment, FIG. 5A shows a center vent blowout portion cut along the line AA of FIG. 3, and FIG. 5B shows a center vent blowout portion of FIG. The side vent outlet cut by a line is shown. FIG. 6 shows an example of control operation in the control unit, and is a flowchart illustrating a precondition for shifting to a swing mode in which swing control for reciprocating the vent door is performed. FIG. 7 is a flowchart illustrating a basic form of swing control when the swing mode is entered. FIG. 8 is a diagram illustrating a mode in which the air volume sent from the center vent blowing portion and the air volume sent from the side vent blowing portion are alternately increased / decreased by swing control in the configuration shown in FIG. The figure showing the moment when the air volume sent from the center vent outlet by control becomes larger than the air volume sent from the side vent outlet, (b) shows the air volume sent from the side vent outlet by swing control from the center vent outlet. It is a figure which shows the moment when it became more than the air volume to send. In FIG. 9, the increase / decrease in the air volume sent from the center vent outlet and the air volume sent from the side vent outlet by the swing control shown in FIG. 8 is the air volume sent from the center vent outlet grill to the passenger compartment and the vehicle from the side vent outlet grill. It is a figure which shows the state which is reflected in the increase / decrease of the air volume sent to a room. FIG. 10 is a diagram showing a modified example having the same function as the configuration of FIG. FIG. 11 is a perspective view showing the bent outlet portion in a state where the vent door is attached and the vent door attached to the vent outlet portion side by side in the second embodiment. 12A and 12B are cross-sectional views showing a bent blowout portion in the second embodiment, FIG. 12A shows a center vent blowout portion cut along the line AA of FIG. 11, and FIG. 12B shows a center vent blowout portion of FIG. The side vent outlet cut by a line is shown. FIG. 13 is a diagram illustrating an embodiment in which the air volume sent from the center vent blowing portion and the air volume sent from the side vent blowing portion are alternately increased or decreased by swing control in the configuration shown in FIG. 11, and FIG. 13A is a diagram for explaining a mode in which the air volume sent from the side vent blowing portion is alternately increased or decreased. The figure showing the moment when the air volume sent from the center vent outlet by control becomes larger than the air volume sent from the side vent outlet, (b) shows the air volume sent from the side vent outlet by swing control from the center vent outlet. It is a figure which shows the moment when it became more than the air volume to send. In FIG. 14, the increase / decrease in the air volume sent from the center vent blowing portion and the air volume sent from the side vent blowing portion by the swing control shown in FIG. 13 is the air volume sent from the center vent blowing grill to the passenger compartment and the vehicle from the side vent blowing grill. It is a figure which shows the state which is reflected in the increase / decrease of the air volume sent to a room. FIG. 15 is a perspective view showing the vent blowing portion in a state where the vent door is attached and the vent door attached to the vent blowing portion side by side in the third embodiment. 16A and 16B are views for explaining an embodiment in which the air volume sent from the center vent blowing portion and the air volume sent from the side vent blowing portion are alternately increased / decreased by swing control in the configuration shown in FIG. The figure showing the moment when the air volume sent from the center vent outlet by control becomes larger than the air volume sent from the side vent outlet, together with the state of the air volume sent from the center vent grill and the side vent grill to the passenger compartment. In (b), the moment when the air volume sent from the side vent outlet by swing control becomes larger than the air volume sent from the center vent outlet is sent from the center vent outlet grill and the side vent outlet grill to the passenger compartment. It is the figure which showed with the state of the air volume. FIG. 17 is a perspective view showing the vent blowing portion in a state where the vent door is attached and the vent door attached to the vent blowing portion side by side in the fourth embodiment. FIG. 18 is a diagram illustrating an embodiment in which the air volume sent from the center vent blowing portion and the air volume sent from the side vent blowing portion are alternately increased / decreased by swing control in the configuration shown in FIG. 17, and FIG. 18A is a diagram for explaining a mode in which the air volume is alternately increased / decreased. The figure showing the moment when the air volume sent from the center vent outlet by control becomes larger than the air volume sent from the side vent outlet, together with the state of the air volume sent from the center vent grill and the side vent grill to the passenger compartment. In (b), the moment when the air volume sent from the side vent outlet by swing control becomes larger than the air volume sent from the center vent outlet is sent from the center vent outlet grill and the side vent outlet grill to the passenger compartment. It is the figure which showed with the state of the air volume. FIG. 19 is a flowchart showing a control operation example in which the mode door swing control mode is different depending on the driver's seat side solar radiation amount Sd and the passenger seat side solar radiation amount Sa. FIG. 20 is a flowchart showing an example of control operation in which the mode door swing control mode is different depending on the presence or absence of a passenger on the passenger seat side. FIG. 21 is a diagram illustrating an example of swing control when there is no passenger in the passenger seat in the control of FIG. 20, and FIG. It is a figure showing the moment when the air volume becomes larger than the air volume sent from the seat side side vent outlet, together with the state of the air volume sent from the center vent outlet grill and the side vent outlet grill to the passenger compartment, and (b) is a swing control. The state of the air volume sent from the center vent outlet grill and the side vent outlet grill to the passenger compartment at the moment when the air volume sent from the driver's side side vent outlet becomes larger than the air volume sent from the driver's side center vent outlet. It is a figure shown with. FIG. 22 is a flowchart showing a control operation example in which the mode door swing control mode is different depending on the driver's seat side solar radiation amount Sd and the passenger seat side solar radiation amount Sa and the presence or absence of a passenger on the passenger seat side. .. FIG. 23 is a flowchart showing an example of performing swing control of the mode door according to the amount of change in vehicle speed and the amount of change in steering wheel rotation angle.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows an air conditioner unit 1 of a center-mounted type vehicle air conditioner mounted on a center console portion of a vehicle. The air conditioning unit 1 is arranged on the vehicle interior side of the partition plate that separates the engine room and the vehicle interior, and the outside air (outside the vehicle interior air) and / or the inside air (vehicle interior air) is the blower unit (blower unit). It is introduced into the air conditioning case 2 via (not shown).

The air conditioning case 2 forms an air passage (air flow path 3) flowing toward the passenger compartment, is formed of a synthetic resin material, and introduces air from the blower unit through the air introduction port 4. It includes a space 5, a first blowing passage 6 that guides air to the upper side of the case 2, and a second blowing passage 7 that guides air to the lower side of the case 2.

In the air conditioning case 2, an evaporator 8 forming a cooling heat exchanger is arranged on the downstream side of the air introduction space 5, and a heater core 9 forming a heating heat exchanger is arranged on the downstream side of the evaporator 8. ..

The evaporator 8 constitutes a part of the refrigeration cycle, and is erected in the air passage so that all the air introduced from the air inlet 4 can pass through, and cools the passing air as needed. It is possible. Further, the heater core 9 is erected near the lower part of the air conditioning case 2 located on the downstream side of the evaporator 8.
A bypass passage 10 is formed in the air-conditioning case to bypass the heater core 9 and guide the air that has passed through the evaporator 8 to the downstream side. The ratio of the air passing through the bypass passage 10 to the air passing through the heater core 9 is adjusted by the air mix door 11 pivotally supported on the upper upstream side of the heater core 9.
Therefore, a temperature control means for controlling the temperature of the air introduced into the air conditioning case 2 is formed by the evaporator 8, the heater core 9, and the air mix door 11 described above.

On the downstream side of the air mix door 11, a mixing area 12 for mixing the air passing through the bypass passage 10 and the air passing through the heater core 9 is formed, and the first blowing passage 6 and the second blowing passage 6 and the second blowing passage 6 are formed in the mixing area 12. It is connected to the passage 7.
At the downstream end of the first outlet passage 6, a defrost outlet portion 20 provided on the upper front side of the air conditioning case 2 and through which air sent toward the windshield of the vehicle flows, and an upper rear side of the air conditioning case 2 are provided. A vent blowing portion 30 is formed so that air sent toward the upper part of the vehicle interior flows. Further, at the downstream end of the second blowing passage 7, a foot blowing portion 40 is provided on the lower rear side of the air conditioning case 2 and through which air sent out toward the lower part of the vehicle interior flows.

Here, as shown in FIGS. 1 (b) and 2 (b), the vent blowout portion 30 is provided on each of the driver's seat side and the passenger seat side, and is provided in the lateral width direction (vehicle width direction). ), The center vent outlet 31 (center vent outlet 31a for the driver's seat, center vent 31b for the passenger seat) provided near the center, and the center vent outlet 31 adjacent to the center vent outlet 31 in the lateral width direction (vehicle width direction). ), It is composed of a side vent blowing portion 32 (driver's seat side vent blowing portion 32a, passenger seat side vent blowing portion 32b) provided on the side side.

As shown in FIG. 2A, the defrost blowing portion 20 is connected to a defrost connecting duct 23 for guiding air to a defrost blowing grill (not shown) provided on the upper surface of the dashboard of the vehicle, as shown in FIG. 2A. A defrost opening 24 for sending air to the defrost connection duct 23 is formed on the downstream end surface (upper end surface) thereof.

A center vent connecting duct 33 for guiding air to a center vent blowing grill 51 provided near the center in the vehicle width direction of the dashboard of the vehicle is connected to the downstream end of the center vent blowing portion 31, and downstream thereof. A center vent opening 34 (center vent opening 34a for the driver's seat, center vent opening 34b for the passenger seat) is formed on the side end surface (upper end surface) to send air to the connection duct 33 for the center vent. Further, the side vent blowing portion 32 is connected to a side vent connecting duct 35 that guides air to the side vent blowing grill 52 provided on the side side of the dashboard in the vehicle width direction at the downstream end thereof, and is downstream thereof. A side vent opening 36 (side vent opening 36a for the driver's seat, side vent opening 36b for the passenger seat) is formed on the side end surface (upper end surface) to send air to the side vent connecting duct 35.

Therefore, in the vent blowing portion 30, the driver's seat side vent opening 36a, the driver's seat center vent opening 34a, the passenger seat center vent opening 34b, and the passenger seat side vent opening 35b are in this order in the lateral width direction (vehicle width direction). A driver's seat side partition wall 37a is formed between the driver's seat side vent opening 36a and the driver's seat center vent opening 34a, and the driver's seat center vent opening 34a and the passenger seat center vent opening 34b are arranged. A central partition wall 37b is formed between them, and a passenger seat side partition wall 37c is formed between the passenger seat center vent opening 34b and the passenger seat side vent opening 36b.

Further, in this example, the foot blowing portion 40 is not connected to a duct, and a foot opening 41 is formed on the end surface (lower end surface) thereof to send air toward the lower part of the vehicle interior.
The opening degree of the defrost opening 24 is adjusted by the defrost door 25 provided so as to face the defrost opening 24, and the opening degree of the center vent opening 34 and the opening degree of the side vent opening 36 are the center vent opening. It is adjusted by a vent door 60 provided so as to face the 34 and the side vent opening 36. Further, the air volume sent out from the foot opening 41 is adjusted by a foot door 45 provided in the middle of the second blowing passage 7.

The defrost door 25 is a rotating shaft 26 rotatably supported by the defrost blowing portion 20 of the air conditioning case 2, and is rotated integrally with the rotating shaft 26 for the defrost door extended from the rotating shaft 26. It is configured to have a plate-shaped portion 27. In this example, the defrost plate-shaped portion 27 is a differential between the defrost blowing portion 20 and the vent blowing portion 30 from a position where the defrost plate-shaped portion 27 abuts on the seat wall 2a extending diagonally downward from the downstream upper portion of the evaporator 8. It can rotate toward the position where it abuts on the vent partition wall 2b.

The foot door 45 includes a rotating shaft 46 rotatably supported in the vicinity of connecting to the mixing area 12 of the second outlet passage 7 of the air conditioning case 2, and two foot doors extending in two different directions from the rotating shaft 46. It is configured to have plate-shaped portions 47a and 47b. In this example, the two foot door plate-shaped portions 47a and 47b are fixed with a phase difference that is an obtuse angle with respect to the rotating shaft 46, and both foot door plate-shaped portions 47a and 47b are the car of the air conditioning case 2. From the fully closed position where the inner surface of the side wall on the chamber side and the partition wall 2c defining the second outlet passage 7 are simultaneously in contact with each other to close the second outlet passage 7, both foot door plate-shaped portions 47a and 47b are second. It is rotatable toward a fully open position that is substantially parallel to the blowout passage 7.

In this example, the vent door 60 is provided with the driver's seat side vent door 60a and the passenger seat side vent door 60b rotatably separately, as shown in FIG. Each of the vent doors 60a and 60b is a rotating shaft 61a and 61b and a plurality of (two) plate-shaped portions extending in different radial directions from the rotating shafts 61a and 61b, and can open and close the center vent opening 34. The center vent opening / closing portions 62a, 62b and the rotating shafts 61a, 61b extending in different radial directions at different portions in the axial direction of the rotating shafts 61a, 61b from the forming portions of the center vent opening / closing portions 62a, 62b. It is a plurality (two) plate-shaped portions, and has side vent opening / closing portions 63a and 63b that can open / close the side vent opening 36.

In this example, the center vent opening / closing portions 62a and 62b on the driver's seat side and the passenger's seat side have two plate-shaped portions 620 extending in the radial direction 180 ° different from the rotating shafts 61a and 61b, respectively. The plate-shaped portion 620 includes a plate-shaped and rectangular rigid portion 621 and elastic portions 622 provided on the edges of three sides excluding the sides connected to the rotating shafts 61a and 61b of the respective rigid portions 621. have.
Further, the side vent opening / closing portions 63a and 63b also have two plate-shaped portions 630 extending in the radial direction different from the rotating shafts 61a and 61b by 180 °, and each plate-shaped portion 630 has a plate-shaped and rectangular shape. Has a rigid portion 631 and elastic portions 632 provided on the edges of three sides excluding the sides connected to the rotating shafts 61a and 61b of the respective rigid portions 631.
In this example, the plurality (two) plate-shaped portions 620 of the center vent opening / closing portions 62a and 62b and the plurality (two) plate-shaped portions 630 of the side vent opening / closing portions 63a and 63b have extending diameters. The directions are matched.

The rotary shaft 61a of the vent door 60a on the driver's seat side and the rotary shaft 61b of the vent door 60b on the passenger seat side are rotatably supported with respect to the air conditioning case 2, and are rotatably connected to each other.
Specifically, the rotation shaft 61a of the vent door 60a on the driver's seat side is rotatably supported by the side wall 37d of the vent outlet portion 30 defining the side vent opening 36 on the driver's seat side and the partition wall 37a on the driver's seat side. Further, as shown in FIG. 4, the end portion of the vent door 60b on the passenger seat side connected to the rotating shaft 61b is expanded in diameter, and the expanded diameter portion 611 is rotatably supported by the central partition wall 37b.

Further, the rotation shaft 61b of the vent door 60b on the passenger seat side is rotatably supported by the side wall 37e of the vent outlet portion 30 defining the side vent opening 36 on the passenger seat side and the partition wall 37c on the passenger seat side. As shown in FIG. 4, the end of the vent door 60a on the driver's seat side facing the end of the rotation shaft 61a rotates into the insertion hole 611a formed in the enlarged diameter portion 611 of the vent door 60a on the driver's seat side. An insertion portion 612 that can be inserted is formed, and the insertion portion 612 is rotatably supported by the central partition wall 37b via the enlarged diameter portion 611.

Then, as shown in FIG. 5A, the center vent blowing portion 31 is farthest from the end sides 620a of the center vent opening / closing portion 62a (62b) (rotary shafts 61a and 61b of the plate-shaped portion 620 described later). A sheet portion 38 having an elastic portion 622 provided at the edge portion (side side) as a sheet is formed so as to project. Further, as shown in FIG. 5B, the side vent blowing portion 32 is farthest from the end sides 630a of the side vent opening / closing portion 63a (63b) (rotating shafts 61a and 61b of the plate-shaped portion 630 described later). A sheet portion 39 having an elastic portion 632 provided on the edge portion of the side surface) as a sheet is formed so as to project.

In such a configuration, the edge of the center vent opening 34 at the downstream end of the center vent outlet 31 is curved along the rotation locus of the center vent opening / closing portions 62a and 62b, and the center vent opening / closing portion 62a, A vent air volume regulating wall 300 is formed to narrow the gap between the 62b and the 62b over a predetermined rotation region. Further, the edge of the side vent opening 36 at the downstream end of the side vent blowing portion 32 is curved along the rotation locus of the side vent opening / closing portions 61a and 61b, and is formed between the side vent opening / closing portions 61a and 61b. A vent air volume regulating wall 300 is formed to narrow the gap between the two to a predetermined rotation region.

In this example, the vent air volume regulating wall 300 provided at the edge of the center vent opening 34 is formed by the center vent extension portion 311 extending along the rotation locus of the center vent opening / closing portions 62a and 62b. There is. Further, the vent air volume regulating wall 300 provided at the edge of the side vent opening 36 is formed by a side vent extension portion 321 extending along the rotation locus of the side vent opening / closing portions 63a and 63b.

The center vent extension portion 311 is formed so that the inner wall of the center vent outlet portion 31 extends continuously, and the gap is formed while leaving a gap between the center vent opening / closing portions 62a and 62b and the end sides 620a. It is curved so as to have a small size over a predetermined rotation region. On both side surfaces of the center vent extension portion 311, side walls 312 erected from the edge of the center vent opening 34 are provided, and the end edges 620a of the center vent opening / closing portions 62a and 62b are the center vent extension portions. It prevents a large amount of unintended conditioned air from flowing from the side surfaces of the center vent opening / closing portions 62a and 62b when approaching 311.

Further, the side vent extension portion 321 is also formed so that the inner wall of the side vent outlet portion 32 extends continuously, and the side vent opening / closing portion 63a, 63b is formed with a gap between the end sides 630a and the side vent opening / closing portion 63a, 63b. The gap is curved so as to have a small dimension over a predetermined rotation region. Side walls 322 erected from the edge of the side vent opening 36 are provided on both side surfaces of the side vent extension portion 321, and the end sides 630a of the side vent opening / closing portions 63a and 63b are side vent extension portions. It prevents a large amount of unintended conditioned air from flowing from the side surfaces of the side vent opening / closing portions 63a and 63b when approaching 321.

Here, the small dimension is, for example, 1 to 2 mm, and the dimension of the gap may be maintained at a constant dimension over a predetermined rotation region in order to stably obtain the effect of reducing the air volume. preferable.

Further, in this example, in the extension portion 311 for center vent, when the rotation starting point is the position where the opening / closing portions 62a and 62b for center vent close the center vent opening 34, the vent door rotates greatly from this closed position (this implementation). In the example, it is formed in a predetermined rotation region at the end of rotation (rotating counterclockwise in FIG. 5).
On the other hand, the side vent extension portion 321 is provided in a rotation region different from that of the center vent extension portion 311 in the rotation direction of the side vent opening / closing portions 63a and 63b. That is, when the position where the side vent opening / closing portions 63a and 63b close the side vent opening 36 is the rotation starting point, the side vent extension portion 321 rotates from this closed position (in this embodiment, the left in FIG. 5). The end sides of the side vent opening / closing portions 63a and 63b are formed in a predetermined rotation region immediately after passing through the end surface of the side vent opening 36.

The center vent connection duct 33 is formed so that the connection end portion 33a connected to the center vent outlet portion 31 does not interfere with the center vent extension portion 311 and is connected to the center vent outlet portion 31. The airtightness is not impaired when this is done. Similarly, the side vent connecting duct 35 is formed in such a shape that the connection end portion 35a connected to the side vent blowing portion 32 does not interfere with the side vent extending portion 321, and is connected to the side vent blowing portion 32. The airtightness is not impaired when this is done.

Then, an actuator 70 (70a, 70b) that gives rotational power is directly or directly attached to each of the rotation shafts 61 (61a, 61b) of each vent door 60 (vent door 60a on the driver's seat side, vent door 60b on the passenger seat side). , Are connected via the link mechanism L. Each actuator 70 is driven and controlled based on a drive control command from the control unit 71 so as to give a desired movement to the vent door 60.

Here, the control unit 71 is provided on the vehicle interior temperature sensor 72 for detecting the vehicle interior temperature, the vehicle outdoor temperature sensor 73 for detecting the vehicle interior outdoor temperature, and the driver's seat side and the passenger seat side, respectively. A solar radiation sensor (driver's seat side solar radiation sensor 74a, passenger's seat side solar radiation sensor 74b) that detects the amount of solar radiation emitted to the passenger seat, a passenger sensor 75 that determines whether or not a passenger is on the passenger seat, and a vehicle speed that detects the vehicle speed. Signals from various sensors such as the sensor 76 and the handle rotation angle detection sensor 77 that detects the amount of rotation of the handle from a predetermined position are input, and the air conditioner switch (A / C switch) and the target temperature of the passenger seat are set. A signal from an operation panel 78 provided with a temperature setting device or the like is input, arithmetic processing is performed based on these signals, and control such as driving and controlling the air mix door and various mode doors is performed.

In FIG. 6, an example of control operation of the vent door 60 by the control unit 71 is shown as a flowchart, and an example of control operation of the vent door will be described below based on this flowchart.
First, the control unit 71 determines whether the control by the air conditioning unit 1 is set to automatic control or manual control (step 100), and if it is determined that the control is set to automatic control, the control unit 71 determines. It is determined whether or not the cooling operation mode is set (step 102), and the vehicle air conditioner is set to a blowout mode (for example, a vent mode) in which air is sent out from the center vent opening 34 and the side vent opening 36. It is determined whether or not (step 104), and whether or not the amount of air introduced into the air flow path is set to a non-maximum state (the blower that introduces air into the air flow path is not rotating at high speed). Whether or not it is set) is determined (step 106).

When the cooling operation mode is set, the blowing mode is set to the blowing mode in which air is sent out from the center vent opening 34 and the side vent opening 36, and the amount of air introduced into the air flow path is not the maximum. , When the control to rapidly cool the passenger compartment (cool-down control) has been completed (the transitional control until the passenger compartment stabilizes at the target temperature has been completed), or when rapid cooling is not required originally. Therefore, in such a case, the swing mode for performing swing control for repeatedly increasing or decreasing the cold air supplied to the occupants in order to enhance the comfort of the occupants is turned on (step 108), and under other conditions, the cold air is turned on. Since the contribution to comfort is small even if the swing control for increasing or decreasing is performed, the swing mode is turned off (step 110).

Here, turning on the swing mode means entering a control mode that enables swing control for reciprocating the vent door 60 to be executed under predetermined conditions, and various conditions for performing swing control can be considered. As the most basic control, when the swing mode is turned on, as shown in FIG. 7, the time (t1) in which the amount of air blown out from the side vent opening 36 becomes larger than the amount of air blown out from the center vent opening 34 (t1). ) And the time (t2) at which the amount of air blown out from the center vent opening 34 becomes larger than the amount of air blown out from the side vent opening 36 can be made equal (t1 = t2).

Further, the swing control does not have to reciprocate the entire rotation range of the vent door 60, but is transmitted from the blowout portion in the rotation region where the end edge of the opening / closing portion faces the vent air volume regulation wall 300. Since the amount of air can be significantly reduced, it is preferable to reciprocate so that the end edge of the opening / closing portion includes a region that does not face the air volume regulation wall and a region that faces it.

The above control is the control when the air conditioning unit 1 is set to automatic control, but the same processing may be performed even when the air conditioning unit 1 is set to manual control.
That is, when it is determined that the manual control is set, it is determined whether or not the cooling operation mode is set (step 112), and the vehicle air conditioner has the center vent opening 34 and the side vent opening 36. It is determined whether or not the blowout mode (for example, the vent mode) for sending air from the air conditioner is set (step 114), and further, whether or not the amount of air introduced into the air flow path is set to a non-maximum state. (Whether or not the blower that introduces air into the air flow path 3 is set to a state where the rotation is not high speed) is determined (step 116).

When the cooling operation mode is not set, the blowing mode is not set to the blowing mode in which air is sent out from the center vent opening 34 and the side vent opening 36, or the amount of air introduced into the air flow path 3 is maximum. If this is the case, the swing mode is turned off because the contribution to comfort is small even if the swing control for increasing or decreasing the cold air is performed (step 118).
On the other hand, the cooling operation mode is set, the blowing mode is set to the blowing mode in which air is sent out from the center vent opening 34 and the side vent opening 36, and the amount of air introduced into the air flow path is not the maximum. When set to, the state where the control for rapidly cooling the interior (cool-down control) is completed (the state where the transient control until the vehicle interior stabilizes at the target temperature is completed) or the rapid Since cooling is not originally required, in such a case, the swing mode for performing swing control for repeatedly increasing or decreasing the cold air supplied to the occupant in order to enhance the comfort of the occupant is turned on (step 108).

Therefore, according to the above-mentioned control, when the air is blown out from the center vent opening 34 and the side vent opening 36 when the vehicle interior is cooled, the cooling control in the vehicle interior becomes stable (during cooling). When the air flow rate is other than High), the vent door 60 reciprocates, so that the flow rates of the center vent blown air and the side vent blown air can be alternately increased or decreased as shown in FIGS. 8 and 9. It will be possible. For this reason, the feeling of airflow felt by the occupant can be made unsteady without installing a dedicated angle changing louver device near the outlet grill, and the occupant's comfort can be improved without the need for special parts. It will be possible to improve.

In the above example, the movement of reciprocating the vent door 60 is such that the amount of air blown out from the side vent opening 36 becomes larger than the amount of air blown out from the center vent opening 34 (t1) and the amount of air blown out from the center vent opening 34. The vent door was reciprocated so that the time (t2) at which the amount was larger than the amount blown out from the side vent opening 36 was equal, but t1 and t2 were rotated on one side more than the other depending on the vehicle interior environment. It may be set longer.

For example, a region closer to the side in the vehicle width direction in the vehicle interior is more susceptible to an external heat load than a region closer to the center. Therefore, by making the time when the amount of air blown out from the side vent opening larger than the amount of air blown out from the center vent opening longer than the time when the amount of air blown out from the center vent opening becomes larger than the amount of air blown out from the side vent opening. The influence of the heat load from the outside may be mitigated.

The time (t1) when the amount of air blown out from the side vent opening 36 is larger than the amount of air blown out from the center vent opening 34 is the time (t2) when the amount of air blown out from the center vent opening 34 is larger than the amount of air blown out from the side vent opening 36. ) Is set longer than (t1> t2), the center vent is set to stop the vent door 60 at a position where the amount of air blown out from the side vent opening 36 is larger than the amount of air blown out from the center vent opening 34. By making the time for stopping the vent door 60 at a position where the amount of air blown out from the opening 34 is larger than the amount of air blown out from the side vent opening 36, t1> t2 may be set.
Further, in the rotation section of the vent door 60 in which the amount of air blown out from the side vent opening 36 is larger than the amount of air blown out from the center vent opening 34, the amount of air blown out from the center vent opening 34 is from the side vent opening 36. By making it larger than the rotation section of the vent door 60, which is larger than the blowout amount, t1> t2 may be set.
Further, the rotation speed when the vent door 60 is in a rotation section in which the amount of air blown out from the side vent opening 36 is larger than the amount of air blown out from the center vent opening 34 is the amount of air blown out from the center vent opening 34. The rotation speed of the actuator 70 may be controlled by the control unit 71 so that the speed is slower than the rotation speed in the rotation section where the amount of air blown out from the side vent opening 36 is larger than the amount of air blown out from the side vent opening 36.

In the above example, the vent air volume regulating wall 300 that regulates the air volume sent from the center vent opening 34 is extended from the edge of the center vent opening 34 along the rotation locus of the center vent opening / closing portions 62a and 62b. The vent air volume regulating wall 300, which is composed of the extension portion 311 and regulates the air volume sent from the side vent opening 34, is formed along the rotation locus of the side vent opening / closing portions 62a and 62b from the edge of the side vent opening 34. An example is shown in which the side vent extension portion 311 is extended, but in order to have the same function, as shown in FIG. 10, the center vent outlet portion 31 of the center vent connection duct 33 and the center vent outlet portion 31 are shown. A curved wall 331 for center vent is formed on the inner wall of the connection end 33a to be connected along the rotation locus of the opening / closing portions 62a and 62b for center vent, and is connected to the side vent outlet portion 31 of the connection duct 33 for side vent. A curved wall 351 for side vents may be formed on the inner wall of the connection end 33a along the rotation locus of the opening / closing portions 62a and 62b for side vents.

Here, the center vent curved wall 331 is formed by inflating the inner wall of the connection end 33a of the center vent connection duct 33 so as to be continuous from the inner wall of the center vent outlet 31, and is formed by expanding the inner wall of the center vent opening / closing portion 33a. A gap is left between the end sides 620a of 62a and 62b, and the gap is curved so as to have a small dimension over a predetermined rotation region. Similarly, the curved wall 351 for side vent is formed by inflating the inner wall of the connection end 33a of the connection duct 33 for side vent so as to be continuous from the inner wall of the side vent outlet 31, and the side vent is formed. A gap is left between the opening / closing portions 62a and 62b and the end sides 620a, and the gap is curved so as to have a small size over a predetermined rotation region.

Even in such a configuration, by reciprocating the mode door, the flow rates of the center vent blown wind and the side vent blown wind are the same as in the case where the center vent extending portion 311 and the side vent extending portion 321 are provided. Can be increased or decreased alternately, and the feeling of airflow felt by the occupant can be made unsteady without providing a dedicated angle changing louver device in the vicinity of the outlet grill. That is, it is possible to make the feeling of airflow felt by the occupant unsteady even if sufficient space for providing the swing mechanism cannot be secured at each outlet to the vehicle interior.

Further, in such a configuration, when the center vent connecting duct 33 is attached to the center vent blowing portion 31 or when the side vent connecting duct 35 is attached to the side vent blowing portion 32, the vent air volume regulating wall 300 (center vent) is used. The curved wall 331 for side vents and the curved wall for side vents) do not get in the way, and the workability of assembling the center vent connection duct 33 and the side vent connection duct 35 is not impaired. Moreover, the vent air volume regulating wall 300 is formed not in the air conditioning case 2 but in the center vent connecting duct 33 that guides the air to the center vent blowing grill 51 and the side vent connecting duct that guides the air to the side vent blowing grill 35. By simply replacing the center vent connection duct 33 and the side vent connection duct 35, the air volume of the air leading to the center vent outlet grill 51 and the side vent outlet grill 52 can be alternately increased or decreased.

In the above example, as the vent air volume control wall 300, the center vent extension portion 311 is provided at the edge of the center vent opening 34, and the side vent extension portion 311 is provided at the edge of the side vent opening 34. As an example, a curved wall 331 for center vent is provided on the inner wall of the connection end portion 33a connected to the center vent outlet portion 31 of the connection duct 33 for center vent, and the side vent outlet portion 31 of the connection duct 33 for side vent is provided. An example is shown in which a curved wall 351 for a side vent is provided on the inner wall of the connecting end portion 33a to be connected, but the extended portion may be provided at either the center vent opening or the side vent opening, or the curved wall. Is provided at either the connection end of the center vent connection duct or the connection end of the side vent connection duct, but the air volume of the air leading to the center vent outlet grill 51 and the side vent outlet grill 52 is alternately provided. It is possible to increase or decrease.

In the above configuration, the connection end 33a connected to the downstream end of the center vent outlet 31 or the center vent outlet 31 of the center vent connection duct 33, and the downstream end of the side vent outlet 32 or the side vent connection. Curved along the rotation locus of the opening / closing portions (center vent opening / closing portions 62a, 62b, side vent opening / closing portions 63a, 63b) at at least one of the connection end portions 35a connected to the side vent outlet portion 32 of the duct 35. Vent air volume control wall 300 (center vent extension portion 311; side vent extension portion 321), center vent curved wall 331, side, which is formed and narrows the gap between the opening / closing portion over a predetermined rotation region. By providing a curved wall for venting 351), the air volume sent out from the center vent opening 34 and the air volume sent out from the side vent opening 36 are alternately increased / decreased. The air volume sent out from the center vent opening 34 and the air volume sent out from the side vent opening 36 may be alternately increased or decreased without forming.

Examples are shown in FIGS. 11 and 12. In this example, the vent air volume control wall 300 is not provided, and the center vent opening / closing portions 62a and 62b and the side vent opening / closing portions 63a and 63b are extended in different radial directions.
Each opening / closing portion is composed of two plate-shaped portions 620, 630 extending in different directions by 180 ° with respect to the rotating shafts 61a and 61b, from the rotating shafts 61a and 61b of the center vent opening / closing portions 62a and 62b. The extending direction and the extending direction from the rotation shafts 61a and 61b of the side vent opening / closing portions 63a and 63b are different by a predetermined predetermined angle (θ). That is, with the rotation of the vent door 60, the rotation region where the air volume sent out from the center vent opening 34 is maximum and the rotation region where the air volume sent out from the side vent opening 36 is maximum are different.

Further, in this example, the rotation starting point is the closing position where the edge portion of the end edge of the opening / closing portion abuts on the seat portions 38, 39 and closes the corresponding opening, and the rotation starts from there in the opening direction (in this embodiment, the figure). When rotated counterclockwise at 20), the rotation region where the air volume blown out from the side vent opening 36 is maximum is delayed from the rotation region where the air volume blown out from the center vent opening 34 is maximum.
Then, an actuator 70 that gives rotational power is directly or via a link mechanism L on the rotation shaft 61 (61a, 61b) of each of the vent doors 60 (vent door 60a on the driver's seat side and vent door 60b on the passenger seat side). It is connected, and by driving and controlling this actuator based on the drive control command from the control unit, the vent door can be reciprocated.
Since the other configurations are the same as those of the configuration example, the same reference numerals are given to the same parts and the description thereof will be omitted.

Even in such a configuration, by performing the control shown in FIG. 6 in the same manner, when the swing mode is turned ON, the vent door reciprocates and the air volume sent from the center vent opening and sent from the side vent opening. As shown in FIGS. 13 and 14, the air volume can be increased or decreased alternately. For this reason, the feeling of airflow felt by the occupant can be made unsteady without installing a dedicated angle changing louver device in the vicinity of the blowout grill, and the comfort of the occupant is improved without creating the number of parts. It is possible to make it.

Other examples

In the above configuration, the opening degree of the vent door 60a for adjusting the opening degree between the center vent opening 34 and the side vent opening 36 on the driver's seat side and the opening degree between the center vent opening 34 and the side vent opening 36 on the passenger seat side are adjusted. An example is shown in which the vent door 60b is individually rotated and controlled by providing an actuator separately, but as shown in FIGS. 15 to 18, the center vent opening / closing portion 62a and the side vent opening / closing portion 63a on the driver's seat side are shown. The rotating shaft provided with the above, the opening / closing portion 62b for the center vent on the passenger seat side, and the rotating shaft provided with the opening / closing portion 63b for the side vent are regarded as one common rotating shaft 61, and rotational power is applied to the rotating shaft 61. By connecting the actuator 70 directly or via the link mechanism L and driving and controlling the actuator 70 based on the drive control command from the control unit 71, the vent door 60a on the driver's seat side and the vent door 60b on the passenger seat side can be obtained. May be controlled to reciprocate and rotate at the same time.

Of these, FIGS. 15 and 16 are examples (Example 3) in which the rotation axis is one common rotation axis 61 on the driver's seat side and the passenger seat side in the configuration example of FIG. FIG. 18 is an example (Example 4) in which the rotation axis is one common rotation axis 61 on the driver's seat side and the passenger seat side in the configuration example of FIG.
In such a configuration, one actuator 70 and a vent door 60 alternately increase or decrease the air volume sent from the center vent opening 34 on the driver's seat side and the passenger seat side and the air volume sent out from the side vent opening 36. Is possible.

In the above configuration, an example of swing control in which the vent door 60 is simply reciprocated when shifting to the swing mode of step 110 is shown, but in the swing mode, the vent door 60 is swing controlled in consideration of various conditions. You may let it.

As an example, in the example shown in FIG. 19, the mode of swing control is changed in consideration of the amount of solar radiation that affects the vehicle interior environment.
A driver's seat side solar radiation sensor 74a for detecting the driver's seat side solar radiation amount (Sd) is provided on the driver's seat side (for example, a location near the driver's seat on the dashboard) in the passenger seat, and the passenger seat side (for example, the passenger seat side) in the passenger seat is provided. A passenger seat side solar radiation sensor 74b for detecting the passenger seat side solar radiation amount (Sa) is provided at a location near the passenger seat on the dashboard, and the solar radiation amount detected by these solar radiation sensors is input to the control unit 71 (FIG. 1 (FIG. 1). b) See).

When the control unit 71 shifts to the swing mode of step 110, the driver's seat side solar radiation amount Sd and the passenger seat side solar radiation amount Sa are input (step 130), and the driver's seat side solar radiation amount Sd and the passenger seat side solar radiation amount Sa are input. Are compared (step 132). When it is determined that the amount of solar radiation Sd on the driver's seat side is larger than the amount of solar radiation on the passenger seat side Sa, the amount of blown air from the side vent opening (36) is the center vent opening (34) for the vent door 60a on the driver's seat side. ) Is longer than the time (t1) when the amount of air blown out from the center vent opening (34) is larger than the amount of air blown out from the side vent opening (36) (t1>). The vent door is reciprocated (swing control) so as to be t2), and the vent door is reciprocally rotated (swing control) so that t1 = t2 with respect to the vent door 60b on the passenger seat side (step 134).

On the other hand, when it is determined that the amount of solar radiation on the passenger seat side Sa is larger than the amount of solar radiation on the driver's seat side Sd, the amount of blown air from the side vent opening (36) is applied to the vent door 60b on the passenger seat side. The time (t1) when the amount of air blown out from the center vent opening (34) is larger than the time (t2) when the amount of air blown out from the center vent opening (34) is larger than the amount of air blown out from the side vent opening (36). The vent door 60 is reciprocated (swing control) so as to be longer (t1> t2), and the vent door 60 is reciprocated (swing control) so that t1 = t2 with respect to the vent door 60a on the driver's seat side (step). 136).
Further, when it is determined that the amount of solar radiation Sd on the driver's seat side and the amount of solar radiation on the passenger seat side are equal, t1 = t2 for the vent doors 60a and 60b on the driver's seat side and the passenger seat side. The vent door 60 is reciprocated (swing control) (step 138).

Therefore, by performing such control, it becomes easier to alleviate the feeling of heat caused by solar radiation by prolonging the time when the amount of blowout increases with respect to the side with a large amount of solar radiation, and the feeling of airflow felt by the occupant is unsteady. It is possible to secure the cool feeling of the occupants on the side with strong sunlight.

FIG. 20 shows another control example. In this example, a boarding sensor for determining whether or not a passenger is in the passenger seat is installed on the passenger seat side in the passenger seat, and a signal detected by the boarding sensor 75 is input to the control unit 71 (FIG. 1 (b)). reference).

When the control unit 71 shifts to the swing mode of step 110, the control unit 71 inputs a signal from the boarding sensor (step 140), and determines whether or not there is a passenger in the passenger seat based on the signal (step 142). When it is determined that there are no passengers, the swing control on the passenger seat side is stopped, the swing control is performed only on the driver's seat side (step 144), and as shown in FIG. 21, only the driver's seat side is used. The air blown from the center vent grill and the air blown from the side vent grill are alternately increased or decreased.
On the other hand, when it is determined that there is a passenger in the passenger seat, swing control is performed on both the driver's seat side and the passenger seat side (step 146).

Therefore, by performing such control, when there is no passenger in the passenger seat, as shown in FIG. 21, the control for reciprocating the vent door is stopped for the passenger seat not on board. , The air blown from the center vent opening 34 (center vent blowing grill 51) and the air blown from the side vent opening 36 (side vent blowing grill 52) do not alternately increase or decrease, resulting in unnecessary energy consumption. It becomes possible to suppress it.

The swing control based on the detection values of the solar radiation sensors 74a and 74b and the swing control based on the detection values of the riding sensor 75 may be combined, and the swing mode of the step 110 is performed as shown in FIG. 22, for example. You may do so.
In this control, when the control unit 71 shifts to the step 110, the signal from the boarding sensor 75 is input (step 150), and the driver's seat side solar radiation amount (Sd) detected by the driver's seat side solar radiation sensor 74a is combined with the control unit 71. The passenger seat side solar radiation amount (Sa) detected by the passenger seat side solar radiation sensor 74b is input (step 152), and then it is determined whether or not there is a passenger in the passenger seat based on the signal from the passenger seat sensor 75 (step 152). 154). When it is determined that there is no passenger in the passenger seat, the swing control on the passenger seat side is stopped, and the mode door 60a only on the driver seat side is swing-controlled (step 156). At this time, the driver's seat side solar radiation amount Sd and the passenger seat side solar radiation amount Sa are compared (step 158), and if the driver's seat side solar radiation amount Sd is larger than the passenger seat side solar radiation amount Sa, the vent door 60a on the driver's seat side For the time (t1) when the amount of air blown out from the side vent opening (36) is larger than the amount of air blown out from the center vent opening (34), the amount of air blown out from the center vent opening (34) is the side vent opening. The reciprocating rotation (swing control) is performed so that the time becomes longer (t1> t2) than the time (t2) that becomes larger than the amount of blowout from (36) (step 160), and the amount of solar radiation on the passenger seat side Sa is the amount of solar radiation on the driver's seat side. When the amount is larger than Sd, the vent door on the driver's seat side is reciprocated (swing control) so that t1 = t2 (step 162).

On the other hand, when it is determined in step 154 that there is a passenger in the passenger seat, the driver's seat side solar radiation amount Sd and the passenger seat side solar radiation amount Sa are compared (step 164), and the driver's seat side solar radiation amount is compared. When the amount Sd is larger than the amount of solar radiation Sa on the passenger seat side, the vent door on the driver's seat side is reciprocated so that t1> t2, and the vent door on the passenger seat side is t1 = t2. It is reciprocated so as to be (step 166).

When the amount of solar radiation on the passenger seat side Sa is larger than the amount of solar radiation on the driver's seat side, the vent door on the passenger seat side is reciprocated so that t1> t2, and the vent door on the driver's seat side is reciprocated. Then, it is reciprocated so that t1 = t2 (step 168). Further, when the amount of solar radiation on the passenger seat side Sa is equal to the amount of solar radiation on the driver's seat side Sd, the vent door on the driver's seat side and the vent door on the passenger seat side are reciprocally rotated so that t1 = t2 (step 170).

FIG. 23 shows still another control operation example of the swing mode. In this example, a vehicle speed sensor 76 for detecting the vehicle speed and a handle rotation angle detection sensor 77 for detecting the rotation angle of the handle from a reference position are provided, and signals detected by these sensors are input to the control unit 71.

When the control unit 71 shifts to the swing mode of step 110, the control unit 71 inputs a signal from the vehicle speed sensor 76 and a signal from the handle rotation angle detection sensor 77 (step 180), and based on the signal from the vehicle speed sensor 76, per unit time. The amount of change in vehicle speed (ΔVcar) is calculated, and the amount of change in handle rotation angle per unit time (ΔΘhandle) is calculated based on the signal from the handle rotation angle detection sensor 77 (step 182).

After that, it is determined whether or not the amount of change in vehicle speed is smaller than the predetermined value α and the amount of change in the steering wheel rotation angle is smaller than the predetermined value β (step 184). In this judgment, if there is almost no change in vehicle speed and there is almost no operation to rotate the steering wheel, it is presumed that the driving is monotonous. It is to determine that there is a possibility that Therefore, when it is determined that the operation is monotonous, the amount of air blown to the occupant is forcibly changed by performing swing control, and the feeling of airflow felt by the passenger (especially the driver) is unsteady. By doing so, the drowsiness prevention effect and the awakening assist are performed (step 186).

Yet another example

In the above, with respect to the vent door 60, the center vent opening / closing portions 62a and 62b have two plate-shaped portions 620 extending in radial directions 180 ° different from the rotating shafts 61a and 61b, and the side vent opening / closing portions 63a. , 63b has been described as having two plate-shaped portions 630 extending in the radial direction 180 ° different from the rotation shafts 61a and 61b, but the present invention is not limited to this. For example, one or both of the extending direction of the two plate-shaped portions 620 of the center vent opening / closing portion and the extending direction of the two plate-shaped portions 630 of the side vent opening / closing portion are obtuse. May be formed in. The extension angle may be appropriately selected according to conditions such as ventilation resistance.

Further, in the center vent outlet portion 31, the center vent opening 34 (center vent opening 34a for the driver's seat and center vent opening 34b for the passenger seat) is located on the side of the vent outlet portion 30 toward the center in the lateral width direction (vehicle width direction). It has been described that the vent opening 36 (side vent opening 36a for the driver's seat and side vent opening 36b for the passenger seat) is formed on the side of the vent outlet portion 30 in the lateral width direction (vehicle width direction). Not exclusively. For example, the center vent opening 34 (driver's seat center vent opening 34a, passenger seat center vent opening 34b) is closer to the side of the vent outlet 30 in the lateral width direction (vehicle width direction), and the side vent opening 36 (driver's seat). The side vent opening 36a for the passenger seat and the side vent opening 36b for the passenger seat) may be formed closer to the center in the lateral width direction (vehicle width direction) of the vent outlet portion 30. In this case, the center vent connection duct 33 and the side vent connection duct 35 are configured to intersect between the center vent outlet 31 and the dashboard of the vehicle.

1 Air conditioning unit 2 Air conditioning case 3 Air flow path 8 Evaporator 9 Heater core 11 Mix door 30 Vent outlet 31 Center vent outlet 32 Side vent outlet 33 Center vent connection duct 33a Connection end 35 Side vent connection duct 35a Connection end Part 36 Side vent opening 51 Center vent outlet grill 52 Side vent outlet grill 34 Center vent opening 60 Vent door 60a Driver side vent door 60b Passenger seat side vent door 61, 61a, 61b Rotating shaft 62a, 62b Center vent opening / closing part 63a, 63b Side Opening and closing part for vent 70, 70a, 70b Actuator 71 Control unit 300 Vent air volume regulation wall 311 Extension part for center vent 321 Extension part for side vent 331 Curved wall for center vent 351 Curved wall for side vent 620,630 Plate-shaped part 620a, 630a Edges

Claims (14)

An air-conditioning case (2) having an air flow path (3) formed therein, and a temperature adjusting means (8,) for adjusting the temperature of air arranged in the air-conditioning case (2) and introduced into the air-conditioning case. A connection duct for center vents, which is arranged on the downstream side of the temperature adjusting means (8, 9, 11) and guides air to the center vent outlet grill (51) provided near the center in the vehicle width direction. A center vent outlet portion (31) to which (33) is connected and a center vent opening (34) for sending air to the center vent connection duct (33) is formed, and the center vent outlet portion (31). A side vent connection duct (35) that guides air to a side vent outlet grill (52) that is adjacent to the vehicle and is provided on the side in the vehicle width direction is connected to the side vent connection duct (35). The side vent outlet portion (32) in which the side vent opening (36) for sending air is formed, and the center vent opening (34) and the side vent opening (36) are supported by the air conditioning case (2) so as to be openable and closable. A vehicle air conditioner having a vent door (60) to be formed.
The vent door (60) is
A rotating shaft (61, 61a, 61b) pivotally supported by the air conditioning case (2), and a plurality of plate-shaped portions extending in different radial directions from the rotating shaft, the center vent opening (34). The diameters of the center vent opening / closing portions (62a, 62b) that can be opened / closed are different from those of the rotating shafts (61, 61a, 61b) that are different from the forming portions of the center vent opening / closing portions (62a, 62b). It has a plurality of plate-shaped portions extending in the direction, and has side vent opening / closing portions (63a, 63b) that can open / close the side vent opening 36.
The downstream end of the center vent outlet (31) or the connection end (33a) connected to the center vent outlet (31) of the center vent connection duct (33), and the side vent outlet (32). At least one of the opening / closing portions (62a, 62b, 63a, 63b) at the downstream end of the side vent or the connection end portion (35a) connected to the side vent outlet portion (32) of the side vent connection duct (35). A vent air volume regulating wall (300) is provided, which is formed to be curved along the rotation locus of the above and narrows the gap between the opening / closing portion (62a, 62b, 63a, 63b) over a predetermined rotation region.
An actuator (70) that supplies a driving force for rotationally driving the vent door (60), and an actuator (70).
A control unit (71) that drives and controls the actuator (70) so as to reciprocate the vent door (60).
A vehicle air conditioner characterized by having. The vent air volume regulating wall (300) is formed along the rotation locus of the center vent opening / closing portion (62a, 62b) from the edge of the center vent opening (34) at the downstream end of the center vent blowing portion (31). The side vent opening / closing portion (63a, 63b) is provided from the edge of the extended center vent extension portion (311) and the side vent opening (36) at the downstream end of the side vent outlet portion (32). The vehicle air conditioner according to claim 1, wherein at least one of the side vent extension portions (321) is provided along the rotation locus of the vehicle. The vent air volume regulating wall (300) is provided on the inner wall of the connection end portion (33a) connected to the center vent outlet portion (31) of the center vent connection duct (33), and the center vent opening / closing portion (62a, A curved wall for center vent (331) formed along the rotation locus of 62b) and a connection end portion (35a) connected to the side vent outlet portion (32) of the side vent connection duct (35). The vehicle according to claim 1, wherein the inner wall is provided with at least one of the curved side vent walls (351) formed along the rotation locus of the side vent opening / closing portion (32). Air conditioner. An air-conditioning case (2) having an air flow path (3) formed therein, and a temperature adjusting means (8,) for adjusting the temperature of air arranged in the air-conditioning case (2) and introduced into the air-conditioning case. 9,11) and a center vent connection duct that guides air to the center vent outlet grill (51) located on the downstream side of the temperature adjusting means (8, 9, 11) and provided near the center in the vehicle width direction. A center vent outlet portion (31) to which (33) is connected and a center vent opening (34) for sending air to the center vent connection duct (33) is formed, and the center vent outlet portion (31). A side vent connection duct (35) that guides air to a side vent outlet grill (52) that is adjacent to the vehicle and is provided on the side in the vehicle width direction is connected to the side vent connection duct (35). The side vent outlet portion (32) in which the side vent opening (36) for sending air is formed, and the center vent opening (34) and the side vent opening (36) are supported by the air conditioning case (2) so as to be openable and closable. A vehicle air conditioner having a vent door (60) to be formed.
The vent door (60) is
A rotating shaft (61, 61a, 61b) pivotally supported by the air conditioning case (2), and a plurality of plate-shaped portions extending in different radial directions from the rotating shaft, the center vent opening (34). A plurality of center vent opening / closing portions (62a, 62b) extending in different radial directions in a portion of the rotating shaft different from the forming portion of the center vent opening / closing portion (62a, 62b). It is a plate-shaped portion and has side vent opening / closing portions (63a, 63b) that can open / close the side vent opening (36).
The opening / closing portion for center vent (62a, 62b) and the opening / closing portion for side vent (63a, 63b) extend in different radial directions.
An actuator (70) that supplies a driving force for rotationally driving the vent door (60), and an actuator (70).
A control unit (71) that drives and controls the actuator (70) so as to reciprocate the vent door (60).
A vehicle air conditioner characterized by having. The vent door (60) is characterized in that the driving force from the actuator (70) is transmitted directly to the rotating shafts (61, 61a, 61b) or via a link mechanism (L). The vehicle air conditioner according to any one of 1 to 4. The plurality of center vent opening / closing portions (62a, 62b) and the plurality of side vent opening / closing portions (63a, 63b) extend in different directions by 180 ° with respect to the rotation axis (61, 61a, 61b), respectively. The vehicle air conditioner according to any one of claims 1 to 5, wherein the two plate-shaped portions (620, 630) are formed. A method for controlling air conditioning using the vehicle air conditioner according to claims 1 to 6.
The vehicle air conditioner has a function of setting a blowout mode and a function of adjusting the amount of air introduced into the air flow path.
The control unit (71) is set to a blowing mode in which at least the vehicle air conditioner sends air from the center vent opening (34) and the side vent opening (36), and is introduced into the air flow path. An air conditioning control method comprising driving and controlling the actuator (70) so as to reciprocate the vent door (60) when the amount of air is set to a non-maximum state. The movement of reciprocating the vent door (60) is such that the amount of air blown out from the side vent opening (36) becomes larger than the amount of air blown out from the center vent opening (34) from the center vent opening (34). The air conditioning control method according to claim 7, wherein the air-conditioning control method is moved so that the blow-out amount is longer than the time when the blow-out amount is larger than the blow-out amount from the side vent opening (36). The center vent opening (34), the side vent opening (36), and the vent door (60) for opening and closing these are separately provided on the driver's seat side and the passenger seat side, and the driver's seat side and the passenger seat side. Is provided with solar radiation sensors (74a, 74b) to detect the amount of solar radiation.
When the amount of solar radiation differs between the driver's seat side and the passenger seat side, the control unit (71) measures the amount of air blown out from the side vent opening (36) to the center vent opening (34) on the side where the amount of solar radiation increases. ), The actuator 70 is driven so that the time for the blowout amount from the center vent opening (34) to be longer than the blowout amount from the side vent opening (36). The air conditioning control method according to claim 8, further comprising control. The time for stopping the vent door (60) at a position where the amount of air blown out from the side vent opening (36) is larger than the amount of air blown out from the center vent opening (34) is the time for blowing out from the center vent opening (34). The air conditioning control method according to claim 8 or 9, wherein the amount is longer than the time for stopping the vent door (60) at a position where the amount is larger than the amount blown out from the side vent opening (36). The amount of air blown out from the center vent opening (34) is the rotation section of the vent door (60) in which the amount of air blown out from the side vent opening (36) is larger than the amount of air blown out from the center vent opening (34). The air conditioning control method according to claim 8 or 9, wherein the amount is larger than the rotation section of the vent door (60), which is larger than the amount of air blown out from the side vent opening (36). Rotation speed when the vent door (60) is in the rotation section of the vent door (60) where the amount of air blown out from the side vent opening (36) is larger than the amount of air blown out from the center vent opening (34). Is slower than the rotation speed when the vent door (60) is in the rotation section where the amount of air blown out from the center vent opening (34) is larger than the amount of air blown out from the side vent opening (36). 8. The air conditioning control method according to claim 8 or 9. The center vent opening (34), the side vent opening (36), and the vent door (60) for opening and closing these are separately provided on the driver's seat side and the passenger seat side, and whether or not the passenger seat is boarded. A boarding sensor (73) for confirmation is provided.
The control unit (71) stops the reciprocating rotation of the vent door (60) on the passenger seat side when it is determined by the boarding sensor (73) that the passenger seat is not boarded, and the control unit (71) stops the reciprocating rotation of the vent door (60) on the passenger seat side. The air conditioning control method according to claim 7, wherein the actuator (70) is driven and controlled so that only the vent door (60) is reciprocated. The control unit (71) is provided with a speed change amount detecting means for detecting the change amount of the vehicle speed in a unit time and a rotation angle change amount detecting means for detecting the change amount of the rotation angle in the unit time of the handle of the vehicle. The change in the vehicle speed in the unit time detected by the speed change amount detecting means is within a predetermined change range, and the change in the rotation angle of the handle in the unit time detected by the rotation angle change amount detecting means. When it is determined that the amount is within the specified range of change,
The air conditioning control method according to claim 7, wherein the actuator (70) is driven and controlled so as to reciprocate the vent door (60).

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