JPH02164611A - Air-conditioning air blowoff opening control device - Google Patents

Abstract

PURPOSE:To enable the automatic removal of impurities in a one having a plurality of fins driven by a driving means within a casing by detecting the working state of the fine to judge an abnormal state, and controlling the driving means according to the judgment result. CONSTITUTION:Fins 8-10 are pivotally supported 7 to a casing with a rectangular sectional form having a blowoff opening 6 provided on one end part thereof, and one ends of short links 11-13 are fixed to the upper end parts of the shafts 7. One ends of long links 14-16 are pivotally supported by the other ends of the short links 11-13, and by rotating a rotating link 17 pivotally supporting the other ends of the short links by a motor 18, each fin 8-10 is oscillated between concentrated blowoff mode and diffused blowoff mode. In this case, microswitches 20, 21 are disposed on a casing upper wall 4 in a position where the link 11 is made in contact with them at the point where the fin 8 is rotated at the maximum. When a fin abnormal state is judged from the output of these switches 20, 21, the fins 8-11 are reciprocally moved several times to remove impurities.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is provided at an air outlet of an air conditioner for an automobile,
The present invention relates to an air conditioning air outlet control device that rotates a plurality of fins to change the air outlet state.

2. Description of the Related Art Conventionally, it has been proposed that the air outlet of an automobile air conditioner be provided with fins or fins driven by an actuator (see Japanese Utility Model Application Publication No. 63-72448). That is, this device drives the fins at a predetermined angle to form a concentrated blowing mode that concentrates the blown air on the target occupant when the vehicle interior is in a high-speed state. When the quality reaches a steady state,
The fins are rotated in the left-right direction to form a diffusion blow-out moat that diffuses the blow-out air into the small chamber.

Problem to be Solved by the Invention 7.1 However, in such a conventional structure, since the fin is rotatably supported in a hole provided in the casing, dirt, dust, etc. may be deposited in the hole. When foreign substances enter, do they become contaminated? 1 [The object acts as a resistance to the fin sliding part, and the smooth rotation of the fin is obstructed. For this reason, even if the actuator is finally operated, the fins will not operate at a predetermined angle, making it difficult to form a concentrated blowout moat or a diffused blowout moat.

Specifically, according to the inventor's experiments, even if some foreign matter adheres to the sliding part, if a certain amount of time has elapsed since the time of adhesion, by activating the actuator, Contaminants are pushed out from the sliding part, and sliding resistance hardly increases.

However, after a long period of time has passed since the foreign matter has adhered, the foreign matter is absorbed by the lubricant applied to the sliding parts, causing a hard surface to form on the sliding parts. do. For this reason, there is a possibility that the foreign matter not only impedes the proper operation of the fins but also causes malfunction of the actuator.

The present invention has been made in view of such conventional problems, and provides an air-conditioned air blowout [1 control device] that makes it possible to ensure proper operation of the fins provided at the blowout port. The purpose is to

Means for Solving the Problems In order to solve the above problems, the present invention includes a plurality of fins rotatably supported in a casing having an air outlet, and a driving means for driving the fins. In the air-conditioning air outlet device, an operation detecting means is provided for detecting the operating state of the fin, and an abnormal state of the fin is determined based on the operating state, and a predetermined control is applied to the driving means according to the result of this determination. In the configuration described above, the fins are driven by the driving means, so that, for example, when the interior of the vehicle is in a high temperature state, the fins are set to a concentrated blowing mode in which the blowing air is directed to the target occupant. At the same time, when the temperature inside the vehicle reaches a steady state, the fins are rotationally driven in the left-right direction to form a diffusion blowout mode in which the blowout is diffused into the windmill interior. At this time, if foreign matter is present in the sliding portion between the casing and the fins supported by the casing, an abnormality will occur in the operating state of the fins.
This abnormality is detected by the operation detection means and manually inputted to the control device.

Then, the control device determines that the fin is in an abnormal state and outputs a predetermined drive signal to the drive means, and the drive means performs a predetermined operation to remove the foreign matter.

EXAMPLE An example of the present invention will be described below with reference to the drawings. That is, as shown in FIG. 2, the casing 1 has a rectangular cross section having left and right side walls 2, 3, and upper and lower walls 4, 5, and has an air outlet 06 provided at one end, and an air outlet 06 at one end. , the i section is connected to a ventilator duct 1 of an automobile air conditioner (not shown). Said lower wall 4
, 5, a fin 8,9,10 is pivotally supported by a shaft 7, and a short link 11 is provided at the upper end of the shaft 7.
．． One end of 1213 is fixed.

The other ends of the short links 11, 12.13 are pivoted to one ends of long links 4.15, 16, each having a different length, and the other end of the long links 1415.16 is ,
It is pivotally supported on the upper surface of the rotation link 17 at appropriate intervals. The rotary link 17 is connected to a motor 18 serving as a driving means.
The motor 18 is connected to an output port of the control device 23.

On the other hand, a pair of microswitches 20 and 21 serving as actuation detection means are attached to the wall 4 of the casing 1, and the microswitch 2021 detects when the fin 8 on the left side rotates to the maximum. A short link 11 linked to the fin 8 is placed in abutting position.

These microswitches 20 and 21 are connected to the control device 23.
It is connected to a human-powered boat, and the input boat further includes a battery 22, a solar radiation sensor 24, and an outside temperature sensor 25.
, a room temperature sensor 26, and a room temperature setting device 27 are connected.

Then, the motor 18 is operated, and the rotation link 17
By rotating the fins 8, 9.1 by a predetermined angle, each fin 8, 9.1
0 is configured to form a concentrated blow mode shown by a solid line in FIG. 3 and a diffuse blow mode shown by a phantom line in FIG.

Next, regarding the operation of the first embodiment according to the above configuration,
This will be explained according to the flowchart shown in FIG. That is, this flowchart consists of the main routine shown in FIG. 1(A) and a plurality of subroutines shown in FIG. 1(B) to (D). In the main routine, step 100 is a node for returning from the other subroutine, and in step 101 following this node 100, the target blowout temperature To of the air conditioner is set.
It is determined whether or not is greater than or equal to a predetermined value.

The target blowout temperature To is determined by each of the sensors 24, 25, and 26.
A value calculated by an arithmetic circuit in the control device 23 based on the amount of solar radiation detected, the outside temperature, the room ln, and the set room temperature set in the crystal setting device 17, and this target blowout iW If 9 T o is equal to or higher than the predetermined value of 40°C, the process proceeds to step 102; if it is less than 40'C, the process proceeds to step 105.

In step 102, it is determined whether the engine of the vehicle in which the air conditioner is installed is starting or ending, and if it is starting or ending, the process goes to step 103; otherwise, the process goes to step 102. Proceed to step 105.

The repeated fin angle rotation movement of step 103 is performed by continuously rotating the motor 18, ie, the fins 8, 9, .
This is the process of driving the fins 8 and 9 in the opposite direction, and when the engine is started or stopped, the fins 8 and 9 are
．． Drive No repeatedly.

That is, in the determination in step 101, in a transient state where the target blowout temperature To is equal to or higher than a predetermined value, the fins 8, 9, and 10 are stationary in the concentrated blowout mode described above. Therefore, when the engine starts or ends in this concentrated blowing mode, as the blowing air stops,
There is a risk that foreign substances may enter the sliding parts of the fins 8, 9 and 10.

Therefore, by repeatedly driving the fins 8, 9, and 10 in step 103, foreign matter is prevented from entering the sliding portion.

On the other hand, in the determination at step 101, the target blowing temperature T
If o is less than the predetermined value, the interior of the vehicle is in a steady state, and the fins 8, 9 .
10 is pulsation controlled periodically. Therefore, even if the fins 8, 9, and 10 are not operated repeatedly, the intrusion of foreign matter into the sliding portion can be prevented to some extent, so step 103 is bypassed and the process proceeds to step 105.

Then, in step 105, the time from the time of startup is calculated, and in step 106, it is determined whether or not it is every 30 minutes from the time of startup.
If the time is 0 minutes, 1 hour, 1 hour 30 minutes, etc., proceed to step 107; on the other hand, if the time has not been 30 minutes,
Proceed to step 108. Step 107 is a process similar to step 103 described above, and is a process similar to step 103 described above.
0 is activated inversely iυ.

In other words, under the conditions for proceeding to step 107, the fins 8, 9.10 are pulsating controlled with a predetermined rotation angle as described above, but the fins 8, 9.10 are repeatedly operated every 30 minutes. This reliably prevents foreign matter from entering the sliding parts.

Also, in this main routine (here, if the previous 5 steps 103 and 107 have been processed, step 10
4, the execution of the subroutine shown in FIG.
0 to the starting position, that is, the position where the short link 11 contacts one of the microswitches 20. Next, in step 111, it is determined whether the fins 8, 9, and 10 have moved to the starting point position, and if the movement has been completed, the node 11
The process advances to step 3, and if the movement has not been completed, the process advances to step 112.

In step 112, the fins 8.9. It is determined whether or not it is within a predetermined time until the fins 10 reach the starting position. If the predetermined time is within the predetermined time, the process returns to step 110, while if the predetermined time is exceeded, the operation of the fins 8, 9, and 10 is stopped. Since this is a common occurrence, the process proceeds to step 119 and the first
The subroutine shown in Figure (c) is executed.

On the other hand, if the process proceeds to node 113, step 114
, move the fins 8, 9.10 from the starting position to the ending position,
That is, the short link 11 is moved to a position where it contacts the other microswitch 21, and in step 115, the time required for the fin 8.9.10 to move from the starting point f, '7 to the end point position is measured.

Next, in step 116, it is determined whether or not the fins 8, 9, 10 have moved to the end point position, and if the movement has been completed, the process proceeds to step 117, and if the movement has not been completed, the process proceeds to step 118.
Proceed to.

In step 117, it is determined whether or not it takes a predetermined time for the fins 8, 9, and 10 to reach their end positions, and if it is within the predetermined time, the process returns to the main routine stenoa "lOO", while if the predetermined time has exceeded In case, fins 8..9
．． Since there is an abnormality in the operation of 10, step 1
19, the subroutine shown in FIG. 1(c) is executed.

Also, in the determination at step L l 8, fin 8.
9. If the current required time or the predetermined time when driving the to from the starting point position to the ending point position is exceeded, an abnormality has occurred, so the process proceeds to step 119, and the process shown in FIG.
Execute the subroutine shown in c).

That is, in this subroutine, step 12
1, first move the fins 8, 9, and 10 in an anti-summer motion. The repetitive motion involves operating the fins 8, 9, and 10 alternately multiple times while changing the direction of rotation each time, and this repetitive motion prevents foreign objects from being inserted into the sliding parts and causing abnormalities. Even if there is, it is possible to avoid this.

Specifically, according to experiments conducted by the inventors, if there is a contaminant like cotton dust in the air, the fin 8,910 should be rolled several times. U
If you move it, will it come from the sliding part? It has been found that W substances can be almost completely removed.

After removing impurities from the sliding portion in this way, in steps 122 to 131, the same process determination as in steps 110 to 119 described above with reference to FIG. It is determined whether the abnormal condition has been improved or not.

Therefore, in steps 124, 129, and 130, if the node 131 is reached after the predetermined time has elapsed, it means that the abnormal condition has not been improved even if the repetitive movement is performed.

Therefore, in such a case, proceed to step 132,
Process as an abnormal occurrence. That is, while stopping the motor 18 and stopping the fins 8, 9, and 1.0,
The occurrence of an abnormality is notified to the occupants by appropriate warning means such as a buzzer or a lamp.

This allows the occupant to recognize that an abnormality has occurred in the sliding parts of the fins 8, 9, and 10, and to completely correct the abnormal condition by removing foreign matter manually. can.

On the other hand, in the main routine of FIG. 1(A), if the process proceeds to step 109, the subroutine shown in FIG. 1(D) is executed. In this subroutine, in step 133, data on room temperature, solar radiation 1, etc. are read, and in the next step 134, it is determined whether the room temperature is close to the set room temperature, and in step 135, whether the solar radiation amount or the set solar radiation amount is It is determined whether or not the value is greater than or equal to the value.

If either of the determinations in steps 134 and 135 is negative, the thermal environment conditions inside the vehicle are not in a steady state, so the process proceeds to the notebook 100 without periodically operating the fins 8.910. , return to the main routine.

On the other hand, if both the determinations in steps 134 and 135 are positive, it means that the thermal environment condition inside the vehicle is in a steady state.Therefore, in step 136, the fins 8 and 9i0 are periodically By operating the system, it generates pulsating air, which stimulates the thermal sensations of the occupants to maintain comfort. Thereafter, the program returns to the main routine and repeats the main routine and subroutines described above.

In this embodiment, the operating time of the fins 8 and 910 from the starting position or the ending position is measured to prevent the occurrence of an abnormal condition by 1'.
, 1.0 may be detected, and if the torque exceeds a predetermined value, it may be determined that there is an abnormality.

In addition, in this embodiment, the fins 8, 9, and 10 are
By operating q, 夾I! I1. However, if foreign matter gets into the sliding part,
The operating gear ratio of the fins 8, 9, 10 may be varied to increase torque and thereby remove contaminants.

Effects of the Invention As explained above, the present invention provides an operation detection means for detecting the operating state of a plurality of rotatably supported fins, and determines an abnormal state of the fins based on the operating state, Depending on the result of this determination, a predetermined drive signal is output to the drive means linked to the fin. Therefore, when foreign matter is present in the sliding part between the casing and the fins supported by the casing, and an abnormality occurs in the operating state of the fins, the drive means performs a predetermined operation. , it is possible to remove impurities.

Therefore, the disadvantage that the impurities impede the proper operation of the fins or cause malfunction of the drive means is eliminated.
This makes it possible to prevent this from happening and to ensure proper operation of the fins provided at the outlet.

[Brief explanation of the drawing]

FIG. 1(A) is a flowchart showing the main routine of one embodiment of the present invention, FIGS. 1(B) to (D) are flowcharts showing the subroutines of the same embodiment, and FIG. The conceptual diagram and FIG. 3 are explanatory diagrams of the operation of the apparatus according to the same embodiment. l...Casing, 6...Blowout port, 7...Shaft, 8
,9゜10...Fin, 18...Motor (driving means)
, 20゜21...micro switch (operation detection means),
23...Control device. Diagram of 3 other people

Claims (1)

[Claims] (1) In an air-conditioning air outlet device comprising a plurality of fins rotatably supported in a casing having an outlet, and a driving means for driving the fins, an operation of detecting the operating state of the fins. An air conditioning air outlet characterized in that it is provided with a detection means and a control device that determines an abnormal state of the fin based on the operating state and outputs a predetermined drive signal to the drive means in accordance with the determination result. Control device.