JP2007010193A - Control method of air conditioner and control device using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve positional reproducibility of an arm portion and a vertical wind direction changing vane. <P>SOLUTION: This control device comprises the variable arm portion 6, the vertical wind direction changing vane 8 for controlling the vertical wind direction through the arm portion 6, a shaft output transmitting mechanism 17 mounted in the arm portion 6 for driving the vertical wind direction changing vane 8, and an electronic control device for controlling the arm portion 6 and the vertical wind direction changing vane 8. The arm portion is moved to a determined position by the electronic control device, and then the vertical wind direction changing vane is varied, thus the variations of the arm portion 6 and the vertical wind direction changing vane 8 are not affected by each other, and the positional reproducibility of the arm portion 6 and the vertical wind direction changing vane 8 can be improved. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a method for controlling an up-down direction wind direction change blade in an air conditioner.

  Conventionally, this type of air conditioner includes a wind direction changing blade that controls the wind direction in the vertical direction via a variable arm at the air outlet of the air conditioner (for example, Patent Documents). 1).

FIG. 6 shows a conventional air conditioner described in Patent Document 1. In FIG. As shown in FIG. 6, in the air conditioner 1 and the air outlet 5 of the air conditioner, a cross flow fan 4 that is a blower of the air conditioner, an arm portion 6, an up / down direction wind direction change blade 8, and an arm portion. The first motor 13 for driving, the second motor 14 for driving the wind direction changing blades in the vertical direction, and the shaft output transmission mechanism of the second motor built in the arm portion. The arm portion 6 is fixed at a free position in the arm portion rotation range by the first motor 13. In addition, the vertical direction wind direction changing blade 8 is connected to the blowout port 5 with respect to the position of the arm portion 6 via the shaft output transmission mechanism built in the arm portion 6 by the second motor 14. It can be fixed at a free position within the up-and-down direction wind direction changing blade rotation range 9 that can rotate without contact.
JP 2002-31400 A

  However, in the conventional configuration, since the shaft output transmission mechanism of the second motor is built in the arm portion 6, the rotational torques of the first motor and the second motor interfere with each other, For example, when the arm portion 6 fluctuates, the rotational torque of the first motor 13 is applied to the shaft output transmission mechanism of the second motor, and the vertical direction wind direction changing blade 8 fluctuates without driving the second motor. Had the problem of doing.

  Further, when the arm portion 6 and the up-down direction wind direction changing blade 8 are driven by the first motor and the second motor, respectively, the mutual interference between the rotational torques of the first motor and the second motor causes the Since a large error occurs in the position and actual position of the arm portion 6 and the vertical direction wind direction change blade 8 recognized by the electronic control device, damage to the shaft output transmission mechanism built in the arm portion 6, respectively. There was a problem that the position reproducibility of both was low.

  The present invention solves the above-mentioned conventional problem, in the air conditioner having a wind direction changing blade for controlling the wind direction in the vertical direction via a variable arm at the air outlet of the air conditioner. Improve the position reproducibility of the arm and vertical wind direction change blades with respect to the position control commands for the first and second motors from the electronic control device that controls the positions of the arm parts and the vertical wind direction change blades, and The purpose is to freely control the direction and speed of the airflow from the outlet of the harmony machine to provide the airflow and comfort of the occupants. Moreover, it aims at providing the control method of the air conditioner which protects the said shaft output transmission mechanism incorporated in the arm part.

In order to solve the above-described conventional problems, the air conditioner control method of the present invention includes a variable arm portion and a wind direction change that controls a vertical wind direction via the arm portion at the air outlet of the air conditioner. A first motor and a second motor for driving the blade, the arm portion and the wind direction changing blade, a shaft output transmission mechanism of the second motor in the arm portion, the first and second motors, An electronic control device for driving and controlling a blower motor of the air conditioner, and after moving the arm portion to a predetermined position by the first motor drive pulse setting of the electronic control device, The wind direction changing blade is rotationally driven by setting the second motor driving pulse.

  As a result, regardless of the interference of the rotational torque between the first and second motors, the arm portions and the vertical direction wind direction change blades according to the first and second motor position control commands from the electronic control unit, respectively. The position is uniquely determined, and the position reproducibility can be improved. Further, by avoiding simultaneous driving of the first and second motors, the shaft output transmission mechanism built in the arm portion can be protected.

  The air conditioner control method of the present invention improves the position reproducibility of the arm portion 6 and the vertical direction wind direction change blade 8 with respect to the position control commands for the first and second motors, thereby improving the air conditioner outlet. The direction and speed of the air flow can be freely controlled to provide the air flow and comfort of the occupants.

  The first aspect of the present invention provides a variable arm part, a wind direction changing blade for controlling the wind direction in the vertical direction via the arm part, and driving the arm part and the wind direction changing blade at the air outlet of the air conditioner. A motor, a second motor, a shaft output transmission mechanism of the second motor in the arm, and an electronic control device for driving and controlling the first and second motors and the blower motor of the air conditioner. Then, after moving the arm portion to a position determined by the first motor drive pulse setting of the electronic control device, the wind direction changing blade is rotated by the second motor drive pulse setting of the electronic control device. By driving, the mutual interference between the rotational torques of the first motor and the second motor is prevented, and the arm part and the vertical direction wind direction change blades for the first and second motor drive pulse settings of the electronic control unit are prevented. position It is possible to improve the current sex.

  Further, when driving at least one of the first motor and the second motor, one of the motors is in a free state, so that the shaft output transmission of the second motor is placed in the arm portion. Unreasonable force does not act on the mechanism, and the shaft output transmission mechanism can be protected.

  According to a second aspect of the present invention, when driving at least one of the first motor and the second motor, the blower motor is stopped by the electronic control unit. The influence of the wind pressure of the air conditioner blower on the change of the change blade can be eliminated, and the position reproducibility of the arm portion and the vertical wind direction change blade for the position control command for the first and second motors can be improved. .

  According to a third aspect of the present invention, when driving at least one of the first motor and the second motor, the electronic control device controls the rotation of the motor of the blower at low speed, The influence of the wind pressure of the blower of the air conditioner on the movement of the up / down air direction change blade can be suppressed, and the position reproducibility of the arm part and the up / down direction wind direction change blade for the position control command for the first and second motors is improved. And the minimum necessary air volume can be secured.

  In a fourth aspect of the present invention, the first motor and the second motor are stepping motors having a clutch mechanism, and an excessive rotational torque or excessive force from the outside by the first or second motor is applied. The arm portion, the up / down direction wind direction changing blade, the shaft output transmission mechanism, and the first and second motors can be protected.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 shows a block diagram of a control device for an air conditioner according to a first embodiment of the present invention.

In FIG. 1, at an air outlet 5 of an air conditioner, a variable arm portion 6, a wind direction changing blade 8 that controls the wind direction in the vertical direction via the arm portion, and the arm portion 6 and the wind direction changing blade 8 are driven. The air conditioner 1 includes the first motor 13 and the second motor 14 and the shaft output transmission mechanism 17 of the second motor 14 in the arm portion 6, respectively. The second motor 14 and the blower motor 4 of the air conditioner 1 are configured to be driven and controlled by the electronic control unit 15. The blowout portion in FIG. 1 is a detailed configuration of the dotted square portion in FIG. 1, and the arrangement of the first and second motors 13 and 14, the arm portion 6, the up / down direction wind direction changing blade 8, and the shaft output transmission mechanism 17. Is shown. (Configuration of Embodiment 1)
About the control apparatus of the air conditioner comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, in the example of FIG. 1, the rotation shaft of the first motor 13 and the rotation shaft of the second motor coincide with each other, and the shaft portion of the second motor 14 is built in the arm portion 6. Therefore, when the arm portion 6 is rotationally driven by the first motor 13, a rotational force is applied to the shaft output transmission mechanism 17 accordingly, and the vertical direction wind direction changing blade 8 can be moved without driving the second motor 14. It will be rotationally driven.

  For this type of actuator drive, an inexpensive stepping motor having no position detection function is used, and the position of each actuator is defined by a motor drive pulse which is a position control command from the electronic control unit 15. However, when the first motor and the second motor are simultaneously driven to rotate, the rotational torques of the motors interfere with each other, and the arm portion 6 and the vertical wind direction changing blade 8 can be set to the target even with a predetermined motor drive pulse. It happens that the position of is not reached.

  Therefore, in order to eliminate such position non-reproducibility, in driving the first and second motors, first, the electronic control unit 15 moves the arm 6 to a predetermined position, and Control of the air conditioner which fluctuates the up-and-down direction wind direction change blade | wing 8 is implemented.

  FIG. 2 is a flowchart of the control method for the air conditioner according to the first embodiment. A motor drive pulse is set from the electronic control unit 15 to the first motor 13 (201), and the arm portion 6 is moved to a predetermined position (202), and then the vertical direction wind direction change blade 8 is rotationally driven. (203, 204), the first motor 13 is stopped in a freely rotating state, and the position of the second motor 14 is uniquely determined with respect to the drive pulse setting from the electronic control unit. Since the influence of the mutual interference of the rotational torque due to the first simultaneous movement is eliminated, the position of the vertical wind direction changing blade can be uniquely determined.

  As described above, in the present embodiment, since the position reproducibility of the arm part and the vertical direction wind direction change blade for the first and second motor drive pulse settings of the electronic control device can be improved, the air conditioner The direction and speed of the airflow from the air outlet can be freely controlled to provide the user's favorite airflow and comfort. In addition, when either the first or second motor is driven, one of the motors is in a freely rotating state, so that the shaft output transmission mechanism of the second motor is in the arm portion. The shaft output transmission mechanism can be protected without excessive force acting on the shaft.

(Embodiment 2)
FIG. 3 is a flowchart of an air conditioner control method according to the second embodiment of the present invention.

  Before starting to drive the first motor or the second motor, the electronic control unit 15 stops the motor 4 of the blower (300). Thereafter, the drive control of the first and second motors is performed in the same manner as in the first embodiment of the present invention, and after the drive control of the first and second motors is completed, the motor of the blower is restarted (308).

  FIG. 4 is an explanatory diagram showing the influence of the blower of the air conditioner on the up / down direction wind direction changing blade. The flow of wind in the vertical direction of the air conditioner 1 is generated by a blower inside the air conditioner, and the wind flow 16 around the outlet 5 collides with the vertical direction wind direction change vane 8, and the air flow 10 during heating and cooling 11 with the airflow of the hour. That is, the up-down direction wind direction changing blade 8 is a ventilation resistance of the blower of the air conditioner, and controls the flow of the wind by the deflection of the wind pressure. However, the wind flow of the air conditioner becomes resistance to fluctuations of the vertical direction wind direction change blade 8 and the arm portion 6 that supports the vertical direction wind direction change blade 8, and when the first and second motor generation torques are insufficient, The first and second motor drive pulses from the electronic control unit 15 are affected by fluctuations in the arm portion 6 and the vertical wind direction changing blade 8 and may not move to the assumed position.

  Therefore, the influence of the wind pressure of the air conditioner blower can be eliminated by stopping the blower of the air conditioner with respect to the fluctuation of the arm part and the vertical direction wind direction change blade.

  As described above, in the present embodiment, it is possible to improve the position reproducibility of the arm portion and the vertical direction wind direction change blade with respect to the first and second motor drive pulse settings of the electronic control unit. The direction and speed of the airflow from the outlet can be freely controlled to provide the user's favorite airflow and comfort.

(Embodiment 3)
FIG. 5 is a flowchart of an air conditioner control method according to the third embodiment of the present invention.

  Before starting to drive the first motor or the second motor, the electronic control unit 15 controls the motor 4 of the blower at a low speed (500). Thereafter, the drive control of the first and second motors is performed as in the first embodiment of the present invention, and the speed return control of the blower motor is performed after the drive control of the first and second motors is completed (508).

  The reason why the motor of the blower of the air conditioner is controlled to rotate at a low speed with respect to the fluctuation of the arm portion 6 and the vertical direction wind direction change blade 8 is as described in the second embodiment of the present invention. The position reproducibility of the arm part 6 and the vertical direction wind direction change blades 8 for the position control commands for the first and second motors can be improved by stopping the air conditioner. The refrigeration cycle is operating, and the stability of the refrigeration cycle and the comfort of people in the room are impaired because the blower is stopped.

  Therefore, by controlling the rotation of the motor of the blower of the air conditioner at a low speed by the electronic control device with respect to the movement of the arm portion and the vertical wind direction change blade, the wind pressure with respect to the vertical direction wind direction change blade 8 is suppressed, and the arm portion and the vertical direction The influence on the fluctuation of the wind direction changing blade can be minimized.

  As described above, in the present embodiment, the direction of the airflow from the air outlet of the air conditioner by improving the position reproducibility of the arm portion and the vertical direction airflow direction change blade for the position control command for the first and second motors. In addition to being able to control the speed freely and provide the airflow and comfort of the occupants' preference, it is also possible to maintain the comfort without stopping the stability of the refrigeration cycle and the air conditioner it can.

(Embodiment 4)
The fourth embodiment of the present invention is an air conditioner in which a stepping motor having a clutch mechanism is selected as the first and second motors.

  As a result, excessive rotational torque and excessive force from the outside due to the first or second motor can be eliminated, and protection of the arm portion, the vertical wind direction changing blade, and the shaft output transmission mechanism can be achieved.

  As described above, the control method for an air conditioner according to the present invention includes a variable arm portion, a wind direction changing blade that controls the wind direction in the vertical direction via the arm portion, and an electronic control device. Since it can be reproduced well, it can also be applied to uses such as air conditioners and circulators for vehicle interior control.

The block diagram of the air conditioner in Embodiment 1 of this invention The flowchart of the control method of the air conditioner in Embodiment 1 of this invention The flowchart of the control method of the air conditioner in Embodiment 2 of this invention Explanatory drawing explaining the fluctuation | variation of the up-down direction wind direction change blade | wing of an air conditioner The flowchart of the control method of the air conditioner in Embodiment 3 of this invention Cross section of a conventional air conditioner

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Air conditioner 2 Diffuser 3 Indoor heat exchanger 4 Blower 5 Outlet 6 Arm part 7 Arm part rotation range 8 Vertical direction wind direction change blade 9 Vertical direction wind direction change blade rotation range 10 Air flow at the time of heating 11 Air flow at the time of cooling DESCRIPTION OF SYMBOLS 12 Water tray 13 First motor of arm drive 14 Second motor of up-down direction wind direction change blade 15 Electronic control device 16 Flow of wind of blow-out unit 17 Shaft output transmission mechanism

Claims (4)

At the air outlet of the air conditioner, a variable arm part, a wind direction change blade for controlling the wind direction in the vertical direction via the arm part, a first motor and a second motor for driving the arm part and the wind direction change blade, respectively. An electronic control device for driving and controlling the shaft output transmission mechanism of the second motor in the arm portion, the first and second motors, and the blower motor of the air conditioner, and the electronic control device. After moving the arm to a position determined by the first motor drive pulse setting, the wind direction changing blade is rotationally driven by the second motor drive pulse setting of the electronic control unit. Control method for the air conditioner. 2. The air conditioner control according to claim 1, wherein when driving at least one of the first motor and the second motor, the blower motor is stopped by the electronic control unit. 3. Method. 2. The air according to claim 1, wherein when driving at least one of the first motor and the second motor, the motor of the blower is controlled to rotate at a low speed by the electronic control unit. Harmonic machine control method. The control device using the control method for an air conditioner according to claim 1, wherein the first motor and the second motor are stepping motors having a clutch mechanism.

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