JPH0399151A - Wind direction altering device for air conditioner - Google Patents

Abstract

PURPOSE:To improve comfortability with a flow near natural air flow by so controlling the number of applied pulses of a stepping motor as to vary the rotating speed and rotation angle range of a wind direction altering plate of a diffuser. CONSTITUTION:A reference pulse output from reference pulse generating means 11 is input to pulse count switching means 12, which outputs number N of pulses corresponding to the rotation angles (a)-(d) of a wind direction altering plate 4 based on a program stored therein. The output pulses are input to normal/reverse rotation switching means 14, the number of pulses input thereafter is subtracted from the number of pulses input previously, and a normal/ reverse pulse for normal or reverse rotation of the plate 4 by a predetermined number of pulses is output to stepping motor driving means 15. Since the plate 4 is rotated normally or reversely at the rotating angle such as a b a c b d ,.. corresponding to the number N of pulses to be rotated slowly in the normal direction or fast in the reverse direction, the flow of diffused conditioned air is delicately varied to become near natural air flow.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a wind direction changing device for an air conditioner.

[Conventional technology]

The wind direction changing device that automatically changes the direction of the conditioned air blown out from the air outlet by pressing a button on a conventional air conditioner uses a step motor that can rotate the wind direction changing plate installed at the air outlet in forward and reverse directions. It was driven and rotated, and the wind direction was controlled by continuously changing the wind direction.

[Problem to be solved by the invention]

Rotation control of the wind direction changing plate is controlled by a step motor drive.
The idea is to improve the comfort of occupants by continuously changing the wind direction. However, in conventional devices, the wind direction changing plate rotates at a fixed speed and angle range, so the blowing air There were no subtle changes in the flow of the wind, and it was insufficient to provide a rhythmic wind close to that of natural wind.

In order to solve the above-mentioned problems, the present invention aims to provide a means for providing residents with an air flow similar to that of natural wind by changing the rotation speed and rotation range of a wind direction changing plate. .

[Means to solve the problem]

The present invention provides a wind direction changing device that rotates a wind direction changing plate disposed at an air outlet of an air conditioner by a step motor drive, and the rotational speed and rotation angle of the wind direction changing plate during rotation. A wind direction changing device for an air conditioner is characterized in that it is provided with a control device that controls the number of pulses applied to a step motor so that the range changes.

[Effect]

In the above, since the wind direction changing device has the above configuration, the step motor is driven according to a program incorporated in the control device. As a result, the wind direction changing plate connected to the step type motor is rotated at a different speed during one rotation period, or is rotated while changing a rotation angle range for each rotation period.

According to the above, the conditioned air of the air conditioner is blown out from the outlet in a direction corresponding to the rotational change of the wind direction changing plate, resulting in a flow similar to natural wind, further improving comfort for the occupants.

〔Example〕

An embodiment of the present invention will be described based on FIGS. 1 to 4.

Figure @1 is a perspective view of an air conditioner equipped with a wind direction changing device. 1 is the main body of the air conditioner, and the front side has an air intake port 2.
A conditioned air outlet 3 is provided on the lower surface and the lower surface, respectively. Reference numeral 4 denotes a wind direction changing plate, which is rotatably attached to the air outlet 3 and connected to a step type motor 5 capable of forward and reverse rotation.

FIG. 2 shows a block circuit diagram of a control device that controls a step type motor. A pulse number switching means 12 that sequentially outputs pulses with a number of pulses corresponding to the moving angle of the change plate 4, and a forward/reverse switching means 14 that inputs the output signal of the pulse number switching means 12 and outputs forward/reverse pulses. and a step type motor drive means 15 which inputs a forward and reverse pulse from the forward/reverse switch 14 and outputs a motor drive pulse. is input to the step type motor 5 and drives the same motor 5. The operation of an air conditioner equipped with a wind direction changing device configured like the upper Rpi will be explained with reference to FIG. In the figure, the air sucked in from the suction port 2 is cooled or heated as it passes through the heat exchanger 6 and is then energized by the fan 7 and guided to the air direction changing plate 4. . Since the wind direction changing plate 4 is moved up and down by the step type motor 5, the air guided to the wind direction changing plate 4 is changed in direction according to the up and down movement of the wind direction changing plate 4, and is directed from the air outlet 3 into the room. is blown out.

The wind direction changing plate 4 that changes the wind direction is connected to the control device 10.
The rotation angle range changes as shown in FIG. 4, an example of which is shown in FIG. 4, and the rotation speed changes.

The control by the control device 10 that changes the rotation gravity angle range and rotation speed of the wind direction changing plate 4 will be described below.

In the control device 10K, the reference pulse outputted by the reference pulse generating means 11 is inputted to the pulse number switching means 12, and the pulse number switching means 12 is configured to perform a fourth pulse number based on a program stored in the switching means 12. As shown in the figure, pulses of 750, 561, 374, and 187 pulses corresponding to the rotation angles a, b, c, and d of the wind direction changing plate 4 are output.

The pulses output by the pulse number switching means 12 are input to the forward/reverse switching means 14, which subtracts the number of pulses input afterward from the number of pulses input before, and sets the number of pulses to a predetermined value. A forward/reverse pulse is outputted to rotate the wind direction changing plate 4 forward (upward rotation) or reverse (downward rotation) by the number of pulses.

The forward/reverse pulse outputted by the forward/reverse switching means 14 is output by the step type motor driving means 15 at a pulse speed of 8 3.3 p p s. In the case of reverse rotation, a motor drive pulse with a pulse speed of 125 ppS is output to drive the step type motor 5 and change the direction of the air blown by the air conditioner 1.

As a result of the above, the wind direction changing plate 4 has a pulse number of N750→
The rotation angle is 3 −+ i) −+3→( −+ l
) → d →... and is rotated in the normal or reverse direction, and in the normal gravity direction (as shown by the failure in Figure 4)
Since it is rotated slowly in the reverse direction (indicated by the broken line in FIG. 4) and quickly in the reverse direction (indicated by the broken line in FIG. 4), the flow of conditioned air blown into the room changes slightly from time to time, resulting in a flow similar to natural wind.

However, in this embodiment, the wind direction changing plate 4 is assumed to rotate in the vertical direction, but a plurality of left and right changing plates are provided at the air outlet 3 via a connecting arm, and a step type motor 5 is used to rotate the air direction changing plate 4. You can also rotate it left and right to change the rotation speed and rotation angle range.

〔Effect of the invention〕

The wind direction changing device for an air conditioner of the present invention includes a control device to control the drive of a step motor, and a wind direction changing plate connected to the step motor changes the rotation speed and rotation angle range. Since the air conditioner is rotated, the conditioned air blown out from the outlet of the air conditioner has a flow similar to that of natural wind, further improving comfort for the occupants.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an air conditioner equipped with a wind direction changing device according to an embodiment of the present invention, FIG. 2 is a block circuit diagram of a step type motor control device according to the above embodiment, and FIG. 3 is the above-mentioned embodiment. FIG. 4 is a partial sectional view of an air four-way machine equipped with a wind direction changing device according to an embodiment, and is an explanatory diagram showing an example of the rotational movement of the wind direction changing plate according to the above embodiment. DESCRIPTION OF SYMBOLS 1... Air conditioner main body, 2... Suction port, 3... Air outlet, 4... Wind direction change board, 5... Step type motor, 10... Control device, 11... Reference pulse generating means, 12... Pulse number switching means, 14... Forward/reverse switching means, 15-... Step type motor driving means.

Claims (1)

[Claims] In a wind direction changing device that rotates a wind direction changing plate installed at an air outlet of an air conditioner using a step motor drive,
A wind direction changing device for an air conditioner, comprising a control device that controls the number of pulses applied to a step motor so that the rotation speed and rotation angle range of the wind direction changing plate are changed.