JP3119266B2 - Vehicle air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle air conditioner.

[0002]

2. Description of the Related Art Conventionally, a flexible membrane member is used as an air outlet switching mechanism of a vehicle air conditioner of this type, as disclosed in Japanese Patent Application Laid-Open No. 64-85809, for example. It has been known. And the mode pattern of the outlet switching mechanism is a vent mode, a bi-level mode.
In most cases, it is formed in the following order: heat mode, heat mode, heat def mode, def mode.

[0003]

When driving a car or the like, the window glass may suddenly become fogged. In such a case, in order to ensure the occupant's view, the mode of the outlet switching mechanism must be changed to the differential mode to quickly remove the fog. However, in the above-described conventional mode pattern, the differential mode and the vent mode are located at the extreme ends of each other. Therefore, when the occupant switches from the vent mode to the def mode urgently, it is not possible to quickly switch to the def mode due to the large amount of movement of the flexible film-shaped member, and the state in which the view is obstructed is long. There is a problem that continues.

Accordingly, an object of the present invention is to quickly establish a def mode in order to solve the above problems.

[0005]

In order to achieve the above object, the present invention provides a vent outlet provided for blowing air toward the upper body of an occupant, and a vent outlet provided for blowing air toward a window glass of a vehicle. Differential air outlet installed in
A case for housing a vehicle air conditioner, comprising three or more air outlets, including a heat air outlet provided to blow air toward the feet of the occupant; and the three or more air blowers. A film member movably disposed along the opening surface of the outlet and having two or more openings capable of facing the differential air outlet, for switching between opening and closing of each air outlet; Position confirmation means for confirming the current position of the member, moving means for moving the film-like member, a vent mode in which the opening of the film-like member faces the vent outlet, and an opening of the film-like member. When selecting the differential mode opposite to the differential air outlet and the heat mode in which the opening of the film-shaped member faces the external heat outlet and selecting the differential mode. Based on the current position signal from the position confirmation means,
From among the openings for obtaining the differential mode, an opening closest to the differential outlet is selected, and a signal for moving the membrane member so that the opening faces the differential outlet is transmitted to the moving means. The gist of the present invention is a vehicle air conditioner including a control unit that outputs the air conditioner to a vehicle.

[0006]

According to the present invention, three or more air outlets, including a differential air outlet, a vent air outlet, and a heat air outlet, for blowing air into a vehicle cabin are provided in a part of a case accommodating a vehicle air conditioner. Is provided. Then, a film-like member having two or more openings capable of facing the differential air outlet is disposed so as to be movable along the opening surfaces of the three or more air outlets. Then, the position confirmation means confirms the current position of the film-like member and sends a current position signal to the control means. The control means selects an opening closest to the differential outlet from among the openings for obtaining the differential mode based on the signal, and moves the film-shaped member such that the opening faces the differential outlet. Send a signal to the vehicle. The moving means moves the film-like member based on the signal, and stops the film-like member when the differential mode is established.

[0007]

1 to 8 show a first embodiment of the present invention.
It will be described based on. First, the configuration of the air conditioner unit used in the first embodiment will be described with reference to FIG. FIG. 1 is a sectional view showing a section of the vehicle air conditioner. The vehicle air conditioner 1 is disposed behind the instrument panel and substantially in the center of the vehicle.
The duct 2 serves to house the vehicle air conditioner 1. A blower 3 for sending air into the duct 2 is provided at the most upstream portion of the duct 2. Downstream of blower 3,
An evaporator for cooling the air is provided almost at the center of the duct 2.
Data 4 is provided. On the downstream side of the evaporator 4,
A heater core 5 for heating air using the engine cooling water as a heat source is provided perpendicular to the evaporator 4.
One end of the heater core 5 is fixed to the duct 2.

The first passage 6 is formed on the upstream side of the heater core 5, and the air passing through the first passage 6 flows through the heater core 5 and is heated. The second passage 7 is a passage through which the air cooled by the evaporator 4 bypasses the first passage 6. Downstream of the evaporator 4 and at the bottom of the duct 2, a first winding shaft 8 is rotatably fixed to the duct 2. The first electric motor 9 is connected to the end of the first winding shaft 8 on the far side in the drawing, and drives the first winding shaft 8. Further, on the downstream side of the evaporator 4 and the evaporator 4
A second winding shaft 10 is rotatably fixed to the duct 2 at a position facing the upper end of the second winding shaft. Also, when the first electric motor 9 drives the first winding shaft 8, the first winding shaft 8 and the second winding shaft 10 rotate at exactly the same cycle.
The first winding shaft 8 and the second winding shaft 10 are connected by a belt (not shown).

The first film damper 11 is flexible. One end of the first film damper 11 is connected to the first winding shaft 8 with a screw, and the other end is connected to the second winding shaft 10 with a screw. The first film damper 11 extends from the first passage 6 to the second passage 7 and is in contact with the side surface of the heater core 5 on the side of the evaporator 4. Further, a vent outlet 12 for blowing conditioned air toward the upper body of the occupant is provided at the most downstream portion of the duct 2. Similarly, a differential air outlet 13 for blowing conditioned air toward a windshield is provided at the most downstream portion of the duct 2 and adjacent to the vent air outlet 12 on the blower 3 side. A heat outlet 14 for blowing conditioned air toward the feet of the occupant is provided in the duct 2 immediately downstream of the vent outlet 12.

A third winding shaft 15 is rotatably mounted inside the duct 2 at the end of the differential air outlet 13 on the blower 3 side.
It is fixed to. The second electric motor 16 is connected to the end of the third take-up shaft 15 on the far side in the drawing, and drives the third take-up shaft 15. Further, at the end of the heat outlet 14 on the heater core 5 side, at the center downstream of the heater core 5, a fourth
A winding shaft 17 is rotatably fixed to the duct 2.
When the second electric motor 16 drives the third take-up shaft 15, the third take-up shaft 15 is rotated such that the third take-up shaft 15 and the fourth take-up shaft 17 rotate at exactly the same cycle. And the fourth winding shaft 17 are connected by a belt (not shown).

A first shaft 1 is provided inside the duct 2 located between the vent outlet 12 and the differential outlet 13.
8 is rotatably fixed to the duct 2. A second shaft 19 is rotatably fixed to the duct 2 inside the duct 2 located between the vent outlet 12 and the heat outlet 14. The second film damper 20 is flexible, and one end thereof is connected to the third winding shaft 15 with a screw,
The other end is connected to the fourth winding shaft 17 with a screw. The second film damper 20 passes through the gap between the first shaft 18 and the duct 2 and the gap between the second shaft 19 and the duct 2 to form the differential blowout port 13, the vent blowout port 12, and the heat It is stretched across the outlet 14.

A third shaft 21 is rotatably fixed to the duct 2 at an upper portion immediately downstream of the evaporator 4. One end of the cold air bypass plate damper 22 is fixed to the third shaft 21, and the cold air bypass plate damper 22 is installed to open and close the cool air bypass 23 around the third shaft 21. The cool air bypass plate damper 22 is opened up to the dashed line in FIG. 1 only during the maximum cooling.

FIG. 2 is an explanatory view showing the relationship between the opening of the second film damper 20 and the outlet in each blowout mode. Here, the blowing modes in the first embodiment are arranged in the order of differential 2, vent, bilevel, heat, heat differential, and differential 1. Second film damper 20
Has a first opening 24 and a second opening 25 as shown in FIG. In the differential 2 mode, the second opening 25 fully opens the differential outlet 13 and slightly opens the vent outlet 14. In the vent mode, the second opening 25
Open the entire vent outlet 14, and in the bilevel mode, the second opening 25 opens the vent outlet 14 and the heat outlet 15 by about half each. In the heat mode, the first opening 24 slightly opens the differential outlet 13, and the second opening 25 opens the entire heat outlet 15. In the heat differential mode, the first opening portion 24 is provided.
Opens half of the differential outlet 13 and the second opening 25
The outlet 15 is half opened. In the differential 1 mode, the first opening 24 opens the differential air outlet 13 entirely.

Next, the structure of the differential air outlet 13 and the positional relationship between the differential air outlet 13 and the second film damper 20 will be described.
This will be described with reference to FIGS. FIG. 3 is a partial top view when the differential outlet 13 is viewed from the direction of arrow III in FIG. As shown in FIG. 3, three lattices 131, 132, and 133 are provided at the differential outlet 13.
Further, the second film damper 20 is located on the back side in the drawing,
The second opening 25 of the film damper 20 is
It is located on the right side in the figure.

FIG. 4 is a sectional view taken along the line AA of FIG. As shown in FIG. 4, steps 134 and 135 are provided on the left and right sides of the differential air outlet 13 in the figure, and the steps 134 and 135 are provided.
Is made a little thicker. The second film damper 20 is stretched so as to slide in contact with the steps 134 and 135. FIG. 5 is a sectional view taken along the line BB of FIG. As shown in FIG. 5, gratings 131, 132 and 13
3 is made of the same thickness as the steps 136 and 137. Then, the second film damper 20 includes gratings 131, 132,
It is stretched so as to slide in contact with the step 133, the step 136, and the step 137.

While the structure of the differential air outlet 13 and the positional relationship between the differential air outlet 13 and the second film damper 20 have been described above, the vent air outlet 12 and the heat air outlet 14 are also different. It has the same structure as 13 outlets. The positional relationship between the vent outlet 12 and the second film damper 20 and the positional relationship between the heat outlet 14 and the second film damper 20 are also different between the differential outlet 13 and the second film damper 20, respectively. Same as the positional relationship.

FIG. 6 is a block diagram schematically showing the configuration of the first embodiment. In FIG. 6, solid arrows indicate the flow of electrical signals, and dotted arrows in FIG. 6 indicate mechanical interlocking relationships.
The power assist controller 26 responds to a signal sent from a microcomputer 28 described later,
The energization control of the second electric motor 16 is performed so that the electric motor 16 rotates forward, reversely or stops.

The blow mode setting section 27 sets a blow mode setting switch provided on an operation panel in the vehicle compartment.
Alternatively, a selection signal of a blowing mode is generated in accordance with an output state of a sensor for detecting an environmental state in the vehicle compartment such as indoor temperature, indoor humidity or solar radiation, and the selected signal is sent to a microcomputer 28 described later. send. As the selection signal, a signal for instructing venting is 1001, a signal for instructing bi-level is 0111, similarly, heat is 0101, and heat is 0.
Todiff is 0011, and the signal for instructing the diff is 0000.
There are five signals.

The microcomputer 28 has a mode detection function 281, a control function 282, and a judgment function 283. The mode detection function 281 is provided in the blow mode setting section 27.
And outputs a target position signal of the second film damper 20 corresponding to the selection signal, and sends the target position signal to the control function 282 and the determination function 283.

The control function 282 includes a mode detection function 281
The power assist controller 26 is energized in accordance with a target position signal sent from the controller, a current position signal of the second film damper 20 output from a potentiometer 29 described later, or a stop signal described later. Second electric motor 1
6. Forward rotation, reverse rotation or stop. The determination function 283 determines the stop position of the second film damper 20 based on the current position signal of the second film damper 20 output from the potentiometer 29 described later and the target position signal sent from the mode detection function 281. Is determined. The determination function 283 stops the control function 282 to stop the rotation of the second electric motor 16 when the second film damper 20 reaches the stop position, that is, when the target position and the current position match. Send a signal.

The potentiometer 29 is mechanically linked with the second electric motor 16, and changes the rotation angle of the second electric motor 16 when the second electric motor 16 rotates. Accordingly, the resistance value of the potentiometer 29 changes, and the output voltage value of the potentiometer 29 changes accordingly. The voltage value is converted from analog to digital, and this signal is sent to a microcomputer 28, which checks the current position of the second film damper 20.

Referring now to FIG. 7, a potentiometer 2
9, a method for detecting the current position of the second film damper 20 will be described. FIG. 7 is a potentiometer output diagram showing an output voltage value of the potentiometer 29 which changes according to the rotation of the second electric motor 16. Here, the differential 2 shown on the horizontal axis of FIG.
Is the second electric motor 16 when the differential 2 mode is established.
(Hereinafter, the differential 2 shown on the horizontal axis in FIG. 7 is referred to as a rotational angle differential 2). The vent shown on the horizontal axis in FIG. 7 represents the rotation angle of the second electric motor 16 when the vent mode is established (hereinafter, the vent shown on the horizontal axis in FIG. 7 is called the rotation angle vent). Similarly, the bi-level, heat, heat differential, and differential 1 shown on the horizontal axis in FIG. 7 are the bi-level mode, heat mode, heat differential mode, and differential 1, respectively.
It represents the rotation angle of the second electric motor 16 when the mode is established. And each rotation angle, rotation angle bi-level,
These are referred to as a rotation angle heat, a rotation angle heat differential, and a rotation angle differential 1.

The differential 2 shown on the vertical axis in FIG. 7 is a potentiometer 2 when the second electric motor 16 is at the rotation angle differential 2.
9 (hereinafter referred to as differential 2 shown on the vertical axis of FIG. 7).
Is referred to as a voltage differential 2). Similarly, vent, bi-level, heat, heat differential, and differential 1 shown on the vertical axis of FIG. 7 are respectively referred to as voltage vent, voltage bi-level, voltage heat, voltage heat differential, and voltage differential 1. Call.

Further, a voltage differential 2, a voltage vent, a voltage bilevel, a voltage heat, a voltage heat differential, and a voltage differential 1
The value of the signal obtained by analog-to-digital conversion of
111, 1001, 0111, 0101, 0011, and 0001. By clarifying the relationship between the rotation angle of the second electric motor 16 and the output voltage value of the potentiometer 29, the output voltage value of the potentiometer 29 is measured. Is converted from analog to digital, and the converted signal is sent to the microcomputer 28, whereby the current position of the second film damper 20 can be confirmed.

For example, if the output voltage value of the potentiometer 29 is the voltage differential 2, that is, the microcomputer
If the data 2811 receives the signal 1111, it means that the differential 2 mode is established at that time. Also,
If the output voltage value of the potentiometer 29 is a voltage heat, that is, if the microcomputer 28 is inputting a signal of 0101, the heat mode is established at that time. .

The rotation angle CENT in FIG. 7 is a rotation angle located exactly between the rotation angle differential 2 and the rotation angle differential 1, and is between the rotation angle bilevel and the rotation angle heat. The voltage CENT is determined by the second electric motor 16 when the rotation angle CEN is set.
The output voltage value of the potentiometer 29 at the time of T, which is located exactly halfway between the voltage differential 2 and the voltage differential 1. The output of the potentiometer 29 is the voltage CENT.
In this case, the signal 0110 is sent to the microcomputer 28.
Send to

The signals output from the potentiometer 29 in the differential 2 mode and the differential 1 mode are 1111 and 0001, respectively. In addition,
The signal that the command setting unit 27 instructs the differential is 0000. Here, the signal 0000 for instructing the differential is the differential 2
Signal 11 output by potentiometer 29 in mode
11. The difference from both the signal 0001 output from the potentiometer 29 at the time of the 11th and 1st mode is that the blowing mode setting unit 27 sets the 2nd mode and the 1st mode independently. Because it does not instruct.

Therefore, the blow mode setting unit 27 sends a signal of 0000 to the microcomputer 28 when instructing the differential, and the microcomputer 28 converts the signal 0000 to 1111 or 0001 according to the situation. I do. This is performed in step 7 of the flowchart described later.
This corresponds to step 10. Next, the operation of the above configuration will be described with reference to FIG.
It will be described based on. FIG. 8 is a flowchart showing the operation of the microcomputer 28.

First, the potentiometer 29 converts the output voltage value of the potentiometer 29 from analog to digital, and then sends a signal to the microcomputer 28. The microcomputer 28 outputs the signal NO.
It is stored as W (current position) (step 1). When the blow mode setting unit 27 sends a selection signal of the blow mode to the micro computer 28, the micro computer
The data is read as the OBJ (target position) (step 2).

Next, the NOW input in step 1 and
The same as the OBJ input in step 2 (OBJ = NO
W) is determined (step 3). When it is determined in step 3 that OBJ = NOW (YES),
The second electric motor 16 is kept stopped (step 4), and the process returns to step 1. On the other hand, in step 3, O
When it is determined that BJ is not NOW (NO), it is first determined whether or not the signal sent from the blow mode setting unit is a signal for instructing a differential. That is, OBJ = 000
It is determined whether the value is 0 (step 5). Here, a case where it is determined that OBJ = 0000 (YES) in step 5 will be described first.

When it is determined in step 5 that OBJ = 0000 (YES), it is determined whether or not the current rotation angle of the second electric motor 16 is closer to the rotation angle differential 2 than the rotation angle CENT. I do. That is, it is determined whether NOW> 0110 (step 6). When NOW> 0110 (YES), in order to establish the differential mode, it is faster to drive the second electric motor 16 to the rotation angle differential 2 side. Therefore, OBJ = 0000 stored in the microcomputer 28 is converted into OBJ = 1111 (step 7).

Here, the currently established mode is the differential 2
When the motor is in the mode, that is, when NOW stored in step 1 is NOW = 1111, the second electric motor 1
6 need not be driven. Therefore, NO in step 8
It is determined whether or not W = 1111. NOW = 111
When it is 1 (YES), the process proceeds to step 4 and the second electric motor 16 is kept stopped, and the process returns to step 1. On the other hand, when NOW = 1111 is not satisfied (NO), the second
Rotate the electric motor 16 forward (step 9) and step 8
Is performed again, and if NOW = 1111 in step 8, the second electric motor is stopped (step 4).
Return to step 1. Here, to rotate the second electric motor 16 forward means to drive the second electric motor 16 in the direction from the rotation angle CENT to the rotation angle differential 2.

On the other hand, in step 6, NOW> 011
When it is determined that it is not 0 (NO), it is faster to drive the second electric motor 16 to the rotation angle differential 1 side in order to establish the differential mode. Therefore, the microcomputer 28
OBJ = 0000 stored by the OBJ = 0001
(Step 10). Here, when the currently established mode is the differential 1 mode, that is, step 1
When the stored NOW is NOW = 0001, there is no need to drive the second electric motor 16. Therefore, it is determined in step 11 whether NOW = 0001.

When NOW = 0001 (YES), the routine proceeds to step 4, where the second electric motor 16 is kept stopped, and the routine returns to step 1. On the other hand, NOW = 0001
If not (NO), the second electric motor 16 is reversed (step 12) and the control in step 11 is performed again. If NOW = 0001 in step 11, the second electric motor is stopped. (Step 4) Return to step 1. Here, reversing the second electric motor 16 means driving the second electric motor 16 in the direction from the rotation angle CENT to the rotation angle differential 1.

The case where it is determined in step 5 that OBJ = 0000 (YES) has been described. Next, in step 5, OBJ is not 0000 (NO).
The case where it is determined will be described. OB in step 5
When it is determined that J is not 0000 (NO), it is determined whether OBJ> NOW is satisfied for the NOW stored in step 1 and the OBJ read in step 2 (step 13).

If it is determined in step 13 that OBJ> NOW (YES), the second electric motor 16 is rotated forward (step 14), and OBJ> NOW is not satisfied (NO).
Is determined, the second electric motor 16 is reversed (step 15). The second in step 14 or 15
When the electric motor 16 is driven, in step 16 OBJ
= NOW is determined. When it is determined that OBJ = NOW (YES), the second electric motor 16 is stopped in step 4 and the process returns to step 1. OBJ = NO
When it is determined that it is not W (NO), the control in step 13 is performed again. When OBJ = NOW in step 16, the second electric motor 16 is stopped in step 4, and the process returns to step 1.

Next, a description will be given by inputting specific signals to NOW and OBJ. Here, Table 1 below is provided to make the following description easy to understand. Table 1 shows a signal (NOW) output from the potentiometer 29 when each mode is established, and a signal output from the blowout mode setting unit 27 when each mode is established. OBJ).

[0038]

[Table 1]

As a first example, NOW = 1111,
The case where OBJ = 0000 will be described. That is, when the differential 2 mode is currently established, the blow mode setting section 27
A case will be described in which a signal for instructing the differential mode is sent from the controller. At step 1, the microcomputer 28 stores the signal NOW = 1111 transmitted from the potentiometer 29. And in step 2,
The microcomputer 28 reads the signal OBJ = 0000 sent from the blow mode setting section.

Then, the determination at step 3 is NO, and the process proceeds to step 5. Since OBJ = 0000, YES is determined in step 5 and the process proceeds to step 6. Next, NO
Since W = 1111, YES is determined in Step 6 and then OBJ = 0000 is set to OBJ = 1 in Step 7.
Convert to 111. That is, the signal output from the blow mode setting unit 27 is the signal 0000 for instructing the differential mode.
Therefore, the microcomputer 28 determines that driving the second electric motor 16 to the differential 2 mode is faster than the differential mode, and converts the OBJ to 1111. It is.

However, since NOW = 1111, the determination in step 8 is YES, and the process proceeds to step 4 to perform the second
The electric motor 16 is stopped. That is, the second electric motor 16 does not move at all. Then, returning to step 1, NOW = 1111 is stored. As a second example, NOW = 1001, OBJ
= 0000 will be described. That is, a case will be described in which a signal for instructing the differential mode is sent from the blow mode setting unit 27 when the vent mode is currently established.

When NOW = 1001 is stored in step 1, OBJ = 0000 is read in step 2. Then, it is determined as NO in step 3. OBJ = 0
000, it is determined YES in step 5 and N
Since OW = 1001, YES is determined in Step 6 and OBJ = 1111 is converted in Step 7.

Since NOW = 1001, step 8
Is determined to be NO at step 9 and the second electric motor 16 is determined at step 9.
To rotate forward. If the differential 2 mode is established, that is, if NOW = 1111, the routine proceeds to step 4, where the second electric motor 16 is stopped.
= 1111 is stored. As a third example, NOW =
The case where 0001, OBJ = 0000 will be described. That is, a case will be described in which a signal for instructing the differential mode is sent from the blow mode setting unit 27 when the differential 1 mode is currently established.

When NOW = 0001 is stored in step 1, OBJ = 0000 is read in step 2. Then, it is determined as NO in step 3. OBJ = 0
000, so YES is determined in step 5 and N
Since OW = 0001, NO is determined in step 6, and OBJ = 0001 is converted in step 10.

However, since NOW = 0001, that is, the differential 1 mode is currently established, there is no need to move the second electric motor 16. Therefore, the determination at Step 11 is YES, and the process proceeds to Step 4 to keep the second electric motor 16 stopped. That is, the second electric motor
That is, the data 16 is not moving at all. In step 1, NOW = 0001 is stored.

As a fourth example, NOW = 0011,
The case where OBJ = 0000 will be described. That is, a case will be described in which a signal for instructing the differential mode is sent from the blow mode setting unit 27 when the heat differential mode is currently established. When NOW = 0011 is stored in step 1, OBJ = 0000 is read in step 2. Then, it is determined as NO in step 3.

Since OBJ = 0000, step 5
Is determined to be YES and NOW = 0011, so that it is determined to be NO in step 6 and OBJ =
Convert to 0001. Since NOW = 0011, NO is determined in step 11 and the second electric motor 16 is reversed in step 12. Then, if NOW = 0001, YES is determined in step 11 and step 4
To stop the second electric motor 16, and NOW = 00
01 is stored.

As a fifth example, NOW = 0011,
The case where OBJ = 0111 will be described. That is, a case will be described in which a signal for instructing the bi-level mode is sent from the blow-out mode setting unit 27 when the heat differential mode is currently established. When NOW = 0011 is stored in step 1, OBJ = 0111 is read in step 2. Then, it is determined as NO in step 3.

Since OBJ = 0111, step 5
Is determined as NO, and the process proceeds to step 13. OBJ =
0111, NOW = 0011, so step 13
Is determined to be YES, and the second electric motor 16 is rotated forward. When OBJ = NOW, that is, OBJ
= NOW = 0111, YE in step 16
S is determined, and the routine proceeds to step 4, where the second electric motor 16 is stopped. Then, NOW = 0111 is stored.

As a sixth example, NOW = 0101,
The case where OBJ = 0101 will be described. That is, when the heat mode is currently established, the blow mode setting section 27
The case where a signal for instructing the heat mode is sent from the controller will be described. When NOW = 0010 is stored in step 1, OBJ = 0101 is read in step 2. In this case, since OBJ and NOW are equal, the second electric motor
It is not necessary to move the table 16. Therefore, in step 3, YE
S is determined, and the routine proceeds to step 4, where the second electric motor 16 is kept stopped. Then, in step 1, NOW
= 0101 is stored.

Although the first embodiment has been described in detail, the present invention is not limited to the first embodiment. Next, another embodiment will be described with reference to FIGS. 9, 10, and 11. FIG. FIGS. 9, 10 and 11 are explanatory diagrams showing the relationship between the opening of the film damper and the outlet in each of the blowout modes. Here, the opening of the film damper, the shape of the outlet, and the arrangement of the outlets are different for each drawing. The order of the blowing mode is as follows.
In each of the figures, similarly to FIG. 2, the order of the differential 2, vent, bilevel, heat, heat differential, and differential 1 is arranged.

First, as a second embodiment, as shown in FIG. 9, an air conditioner unit is used in which the air outlets are arranged in the order of a heat air outlet 31, a differential air outlet 32, and a vent air outlet 33 from the left side of the figure. May be. Each air outlet of this air conditioner unit is provided with a lattice (not shown) and a step (not shown) as in the first embodiment. In this air conditioner unit, the first opening 3
4, a film damper 36 having a second opening 35 is used. The operation method of the second embodiment is exactly the same as that of the first embodiment.

Next, as a third embodiment, as shown in FIG. 10, an air conditioner unit is used in which the air outlets are arranged in the order of a differential air outlet 41, a heat air outlet 42, and a vent air outlet 43 from the left side of the figure. You may. Each air outlet of this air conditioner unit is provided with a lattice (not shown) and a step (not shown) as in the first embodiment. In this air conditioner unit, the first opening 4
4, a film damper 46 having a second opening 45 is used. The operation method of the third embodiment is exactly the same as that of the first embodiment.

Next, as a fourth embodiment, as shown in FIG. 11, an air conditioner unit in which the air outlets are arranged in the order of a differential air outlet 51, a vent air outlet 52, and a heat air outlet 53 from the left side of the figure is used. You may. In this case, the differential outlet 5
The interval between the vent outlet 52 and the heat outlet 53 is longer than the interval between 1 and the vent outlet 52. Such an air conditioner unit is widely used mainly as a horizontal unit. In this air conditioner unit as well, a grid (not shown) and a step (not shown) are provided at each outlet as in the first embodiment.

In this air conditioner unit,
First opening 54, second opening 55, and third opening 56
Is used. The operation method of the fourth embodiment is exactly the same as that of the first embodiment. In addition, the differential mode is not limited to the end position, but may be at another position. Further, the number of differential modes may be three or more. The signal output from the potentiometer 29 and the signal output from the blow mode setting unit are not limited to the 4-bit signal, but may be other bit signals.

As described in detail above, in the first to fourth embodiments of the present invention, the differential mode is provided next to the vent mode.
By providing the mode, when changing from the vent mode and the bi-level mode to the def mode, the def mode can be established earlier than in the conventional mode pattern. Further, since the driving amount of the electric motor is reduced, an electric motor having a low rotation speed can be used. That is, it is possible to reduce the size, weight, and cost of the electric motor.

Conventionally, there is no step at each outlet, and when the film damper reciprocates along each outlet, the frictional resistance with the inner surface of the duct is large. However, as in the first to fourth embodiments of the present invention, by providing a step at each outlet, the film damper reciprocates only in contact with the step when reciprocating along each outlet. Since it moves, the frictional resistance becomes smaller than before. This eliminates the need to use extra power when driving the electric motor.

If a grid is not provided at the air outlet, when air-conditioned air is blown from the air outlet, deflection due to wind pressure occurs in the film damper. When bending occurs in the film damper, wrinkles occur around the outlet of the film damper,
The conditioned air leaks from the wrinkled portion. However, as in the first to fourth embodiments of the present invention, the above-described bending, wrinkling,
And wind leakage can be prevented.

In the first embodiment described above, the duct 2 is the case of the present invention, the second film damper 20 is the film-like member of the present invention, and the potentiometer 29 is the position checking means of the present invention. In addition, the second electric motor 16 corresponds to the moving means of the present invention, and the power assist controller 26 and the microcomputer 28 correspond to the control means of the present invention.

In the second embodiment, the film damper 36
Corresponds to the film-shaped member of the present invention. In the third embodiment, the film damper 46 corresponds to the film member of the present invention. In the fourth embodiment, the film damper 57 corresponds to the film member of the present invention.

[0061]

As described in detail above, according to the present invention,
The time required to establish the differential mode can be reduced. Further, the amount of movement of the film-like member is reduced, so that the power consumption can be reduced.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a section of a vehicle air conditioner of a first embodiment.

FIG. 2 is an explanatory diagram showing a relationship between an opening of a film damper and an outlet in each outlet mode.

FIG. 3 is a partial top view of the differential outlet when viewed from the direction of arrow III in FIG. 1;

FIG. 4 is a sectional view taken along the line AA of FIG. 3;

FIG. 5 is a sectional view taken along the line BB in FIG. 3;

FIG. 6 is a block diagram illustrating a schematic configuration of the first embodiment.

FIG. 7 is a potentiometer output diagram showing the value of a voltage output by a potentiometer, which varies according to the rotation of the electric motor.

FIG. 8 is a flowchart showing the operation of the microcomputer.

FIG. 9 is an explanatory diagram showing a relationship between an opening of a film damper and an outlet in each of the outlet modes.

FIG. 10 is an explanatory diagram showing a relationship between an opening of a film damper and an outlet in each of the outlet modes.

FIG. 11 is an explanatory diagram showing a relationship between an opening of a film damper and an outlet in each of the outlet modes.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 air conditioner for vehicle 2 duct 12 vent outlet 13 differential outlet 14 heat outlet 16 second electric motor 20 second film damper 26 power assist controller 27 outlet mode setting unit 28 microcomputer -Data 29 Potentiometer 31 Heat outlet 32 Differential outlet 33 Vent outlet 36 Film damper 41 Differential outlet 42 Heat outlet 43 Vent outlet 46 Film damper 51 Differential outlet 52 Vent outlet 53 Heat outlet 57 Film damper

Claims (1)

(57) [Claims] 1. A vent outlet provided to blow air toward an upper body of an occupant, a differential outlet provided to blow air toward a window glass of a vehicle, and air directed toward a foot of the occupant. A case for storing a vehicle air conditioner, including three or more air outlets including a heat air outlet provided for blowing air, and moving along an opening surface of the three or more air outlets. A film member which is provided so as to be able to face the differential air outlet and has two or more openings, and which switches between opening and shutting of each air outlet, and a position for confirming the current position of the film member Confirmation means, moving means for moving the film-like member, a vent mode in which the opening of the film-like member faces the vent outlet, and a differential mode in which the opening of the film-like member faces the differential air outlet. And the opening of the film-shaped member is When selecting the heat mode facing the exit and selecting the differential mode,
Based on the current position signal from the position confirmation means, the opening closest to the differential outlet is selected from the openings for obtaining the differential mode, and the opening is opposed to the differential outlet. A vehicle air conditioner, comprising: a control unit that outputs a signal for moving the membrane member to the moving unit.