JPH0830600B2 - Blower control device for air conditioner - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blower control device for an air conditioner that controls the blowing direction and blowing area of an indoor blowing unit.

2. Description of the Related Art A conventional air conditioner will be described with reference to FIG. 30 is an air conditioner base, 31 is a heat exchanger, 32 is a fan casing, 33 is a fan for blowing, 34 is a fan motor for controlling the number of revolutions, 35 is a wind direction plate, 36 is the angle R of the wind direction plate and the outlet height. A small motor that controls Dh.

Generally, when starting heating, the blowing air volume is reduced to raise the blowing temperature in order to suppress the feeling of cool air and improve comfort. Hard to reach. Therefore, in the conventional example, in order to increase the blowing air velocity, the blowing height Dh is reduced to reduce the blowing area, and the blowing air velocity is increased to ensure the warm air reaching distance.

Problems to be Solved by the Invention However, in the air conditioner as described above, since the angle R of the wind direction plate 35 and the outlet height Dh are controlled by the small motor 36, the mechanical portion becomes considerably complicated. Also, if the outlet height Dh is reduced to reduce the outlet area,
There is a problem in that the blowing shape becomes an elongated slit shape, and the warm air easily diffuses into the surrounding air and the reaching distance of the warm air becomes short.

The present invention has been made in view of the above problems, and changes the vertical blowout angle and blowout area with a simple structure while concentrating blown air so that warm air can reach a long distance without diffusion. To do so.

Means for Solving Problems The air conditioner of the present invention in order to solve the above problems,
A heat exchanger, a blower, a vertical deflection blade that changes the vertical blowing angle, a left and right deflection blade that concentrates and splits in the horizontal direction to change the blowing angle, and a drive unit that independently drives the vertical deflection blade and the horizontal deflection blade. An indoor unit, the upper and lower deflection blades have a normal operation and a reversing operation, and at the time of the reversing operation, the upper and lower deflection blades are arranged at a position for closing the upper portion of the outlet with the outlet angle becoming a set value. Further, a first mode in which the upper and lower deflection blades are normally operated by the drive means and the left and right deflection blades are arbitrarily driven, and a first mode in which the upper and lower deflection blades are reversed by the drive means and the left and right deflection blades are concentrated in the blowing direction A control device having two modes and capable of selecting any one of these modes is provided.

As described above, the present invention has the first mode in which the upper and lower deflection blades are normally operated and the left and right deflection blades are driven in an arbitrary direction, and the blowing area is reduced by the reversing operation of the upper and lower deflection blades and the blown airflow by the left and right deflection blades. Second to centralize
Depending on the mode, the wind speed is high even with a low air volume, and the blowing airflow is concentrated in one direction, so there is little diffusion to the surrounding air and the airflow reaches a longer distance, which makes it easier for warm air to reach, especially during heating. It will improve your comfort.

Examples Hereinafter, an air conditioner of the present invention will be described with reference to the drawings.

FIG. 1 shows a side sectional view of an indoor unit of an air conditioner in an embodiment of the present invention.

In FIG. 1, 1 is an indoor unit, 4 is a heat exchanger,
5 is a blower, 2 is a blower casing, 3 is a front panel,
6 is a vertical deflection blade, 7 is a horizontal deflection blade, 8 is a suction port, 9
Is an outlet.

FIG. 2 is an exploded perspective view of the vertical deflection blade 6 and the horizontal deflection blade 7 of FIG. The vertical deflection vane 6 has a shaft 10 in the longitudinal direction thereof, and an up-down motor (stepping motor) 11 as a drive means for driving the vertical deflection vane 6 is connected to one side of the shaft 10, and The driving can change the blowing angle in the vertical direction.
Here, as shown in FIG. 1, the vertical deflection blade 6 has a total length L of blades in a side cross section, and a total length of L1 and L2 (L1> L).
The shaft 10 is attached to the position divided into 2). As shown in FIG. 1 (A), a blade having a length L2 of the vertical deflection blade 6 is on the indoor unit 1 side, and the operation of changing the blowout angle within a predetermined angle range θ is a normal operation. At this time, the height of the opening of the air outlet is height A. Further, as shown in FIG. 1 (B), when the vertical deflection blade 6 is rotated counterclockwise by the vertical motor 11, the blade having a length L1 closes the upper opening of the outlet. 10 are arranged. In this way, the upper and lower deflection blades 6 are rotated counterclockwise from the normal operation position, and the predetermined angle range θ1 is set.
And the operation of closing the upper part of the air outlet is the reversing operation. At this time, the height of the opening of the air outlet is A ′,
It is lower than the height A in normal operation. That is, the area of the outlet is smaller during the reversing operation than in the normal operation. The left and right deflecting blades 7 that horizontally deflect the blown air are the left deflecting blade 7a connected to the connecting rod 12a and the connecting rod 1
It is composed of a right deflection blade 7b connected to 2b. The left deflection blade 7a is a blade lever arm 13a, a rod 15
a, a left motor (stepping motor) 17a as a driving means is connected via a motor lever arm 16a, and a right deflection blade 7b is similarly connected to a right motor (stepping motor) 17b as a driving means. In this way, the left and right deflecting vanes 7 can concentrate or diffuse the blown air in an arbitrary direction by independently driving the left motor 17a and the right motor 17b. FIG. 3 is a perspective view of the indoor unit 1, and 18 is a remote controller as a control device that enables selection between the first mode and the second mode.
Information from the remote controller 18 is transmitted to the indoor unit 1 by infrared rays or the like. FIG. 4 shows an enlarged view of the remote controller 18.

In the present embodiment, the up / down motor 11, the left motor 17a, and the right motor 17b constitute the driving means, but it is also possible to use only one motor for driving the left and right deflection blades 7, and further, a gear, a clutch, or the like. It is also possible to control the upper and lower deflection blades 6 and the left and right deflection blades 7 with a single motor by using the switching means. The motor is not limited to the stepping motor, but may be an induction motor or the like. Further, the left and right deflecting blades 7 are divided into the left deflecting blade 7a and the right deflecting blade 7b in two, because the concentration and diversion operation of the blown air can be easily performed and the wind direction can be controlled independently. The configuration may be further subdivided to perform wind direction control.

 Next, the operation of this embodiment will be described.

Now, when the first mode button 19 of the remote controller 18 is pressed, the vertical deflection blade 6 can be changed within the range of θ = 0 ° to θ ° ₁ which is the normal operation range as shown in FIG. 1 (A). . That is, when the up / down button 20 of the remote controller 18 is pressed, information is transmitted from the remote controller 18 to the indoor unit 1 side, and the up / down motor 11 rotates in either forward or reverse directions, whereby the up / down deflection blade 6 can be driven. By pressing the up / down button 20, the vertical deflection blade 6 can be set at an arbitrary angle within the normal operation range. As for the left and right deflection blades 7, the remote control
By appropriately pressing the left blade button 21 and the right blade button 18 of 18, it is possible to blow out in any direction. In other words, when the left blade button 21 is pressed, information is transmitted from the remote controller 18 to the indoor unit 1 side, the left motor 17a rotates, and the motor lever arm 16a, rod 15a, blade lever arm 13
The left deflection blade 7a is driven via a.

Similarly, the right deflection blade 7b can be driven by pressing the right blade button 22.

In this way, by pressing the first mode button 19 and pressing the up / down button 20, the left blade button 21, and the right blade button 22, the air can be blown to any position in the normal operation range in the vertical direction and to any position in the horizontal direction. Becomes

On the other hand, when the second mode button 23 of the remote controller 18 is pressed, it is transmitted from the remote controller 18 to the indoor unit 1 and the vertical motor
11 rotates, which causes the vertical deflection blade 6 to reverse and
As shown in the figure (B), it stops when the set angle (θ ₁ ) is reached. At this time, the vertical deflection blades 6 are arranged so that the blowing area is reduced. Further, the left and right deflection blades 7 are arranged to concentrate in the blowing direction.

That is, assuming that the blowing direction is the front direction of the indoor unit 1, the left motor 17a and the right motor 17b are rotated by pressing the second mode button 23, and the left deflection blade
Both 7a and the right deflection blade 7b are driven and stopped until they face slightly inward.

In this way, as shown in FIG. 3 (a), the air is blown out as a bundle of air that is concentrated slightly inside.

When the second mode button 23 is pressed in this manner, the vertical deflection blade 6 reverses its operation to reach the set outlet angle, the outlet area decreases, the wind speed increases, and the left and right deflector blades 7 concentrate the outlet air. The air reach becomes longer. Further, even when the blowing direction is manually or automatically set to a position other than the front direction, the left and right deflection blades 7 are driven so that the blowing direction is slightly concentrated in that direction.

As described above, by having the second mode in addition to the first mode in which the air is blown out in the arbitrary direction within the normal operation range in the vertical direction and in the arbitrary direction in the left-right direction, the cold air directly upon the human body at the time of heating start, etc. Even if the air volume is reduced and the blowout temperature is raised in order to prevent it from hitting hard against the wind, the wind speed increases when the second mode is selected. You can reach far without receiving. Particularly in a wall-mounted indoor blow-out unit, warm air can reach the floor surface without being diffused so much.

As is apparent from the description of the above embodiment, the present invention drives the upper and lower deflection blades and the left and right deflection blades independently,
The upper and lower deflection blades can be blown in any direction within the normal operating range, and the left and right deflection blades can be blown in any direction.
The second mode, which realizes high wind speed with a simple structure, that is, the blowing area is reduced by the reversing operation of the upper and lower deflection blades and the blowing airflow is concentrated by the left and right deflection blades, allows the wind speed to be large and the blowing air flow to be concentrated even with a low air volume. Therefore, the diffusion is small and the air flow reaches a long distance. Especially during heating, warm air can easily reach and the comfort can be improved.

[Brief description of drawings]

1 is a side sectional view of an indoor unit of an air conditioner in an embodiment of the present invention, FIG. 2 is an exploded perspective view of vertical deflection blades and horizontal deflection blades, FIG. 3 is a perspective view of the indoor unit, and FIG. Is an enlarged view of a remote controller which is a control device, and FIG. 5 is an exploded perspective view of an indoor unit of an air conditioner in a conventional example. 1 ... Indoor unit, 4 ... Heat exchanger, 5 ... Blower,
6 ... Vertical deflection blade, 8 ... Horizontal deflection blade, 11 ... Vertical motor (driving means), 17a ... Left motor (driving means), 1
7b: right motor (driving means), 18: remote control (control device).

Claims (1)

[Claims] 1. A heat exchanger, a blower, a vertical deflection blade for changing the vertical blowing angle, a left / right deflection blade for concentrating / diverting in the left / right direction to change the blowing angle, and the vertical deflection blade and the left / right deflection blade are independent of each other. The upper and lower deflection vanes have a normal operation and a reversing action, and the upper and lower deflection vanes are set to a set value at the time of the reversing action, and the upper portion of the outlet is closed. A first mode in which the upper and lower deflecting blades are normally operated by the driving means and the left and right deflecting blades are arbitrarily driven, and the upper and lower deflecting blades are reversed by the driving means and the left and right deflecting blades are moved in the blowing direction. A blower control device for an air conditioner, which has a second mode for concentrating with respect to each other, and which is provided with a control device capable of selecting one of these modes.