JPH0788968B2 - Air conditioner blowout changing device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a blowout changing device for an air conditioner (hereinafter referred to as an air conditioner).

2. Description of the Related Art Conventionally, this type of blowout changing device has a structure as shown in FIG. In FIG. 3, inside the outer frame 31 of the indoor unit, an indoor heat exchanger 32, a drain pan 33, an indoor heat exchanger are provided.
A blower 34 that ventilates 32 is provided, and a front panel 35 of the indoor unit outer frame 31 is provided with a suction port 36 and a blowout port 37. When such an air conditioner is operated, the indoor air flows through the suction port 36, the blower 34, and the indoor heat exchanger 32 and is heat-exchanged and blown out into the room through the blowout port 37. On the contrary, by blowing out warm air downward during cooling, the temperature distribution in the room during air conditioning will be uniform, so the normal outlet 37 will have airflow direction changing blades 38a, 38b.
Was provided so that the blowing angle could be adjusted. As shown in FIG. 4, the wind direction changing blades 38a, 38b are provided on the shafts 39a, 39b at both ends, and the side frame 4 of the outlet 37 is provided.
The shafts 39a, 39b are held through holes 41a (holes of 41b are not shown because the figure is cut), and the interlocking shafts 42a, 42b are attached to a part of the wind direction changing blades 38a, 38b. By providing the interlocking pin 43 fitted to the movement shafts 42a and 42b, the wind direction changing blade 38a and the wind direction changing blade 38b always rotate around the shaft at a constant interval to change the blowing direction.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In such a conventional configuration, since the air outlet is open while the air conditioner is stopped, the air outlet 37
There is a problem that more dust enters and blows out when the operation is restarted, and there is a problem that it is not possible to meet the design demand that the air outlet is not shown when the air conditioner is stopped.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide an attachment device for a wind direction changing vane that can close the air outlet by the wind direction changing vane and that can easily meet design needs.

Means for Solving the Problem In order to solve this problem, the present invention provides a plurality of plate-shaped wind direction changing blades at an outlet, and the rotation axis of each wind direction changing blade is separated from a blade surface portion. Adjusting so that the shaft gears that are provided at the same place and penetrate through the side frame of the air outlet and that have the same module with the same number of teeth at the end of the rotary shaft are formed vertically, and that the modules that engage with the upper and lower shaft gears are the same Gears are provided, the angles of the wind direction changing blades are adjusted, and the air outlets are closed and opened.

With this configuration, the wind direction changing vanes can be rotated about the rotation axis, and the air outlet is closed at a position in the vertical direction, and the adjustment gears rotate the upper and lower wind direction changing vanes so that they are always parallel. You can change the wind direction as you go. Furthermore, since the rotation axis is provided farther from the blade surface, it does not come out of the front panel even when the wind direction changing blade rotates, and the plate surface of the wind direction changing blade stays close to the front panel even when closed. It will be.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 and 2. In FIG. 1, a blowout port 2 through which wind blows in the direction of an arrow 1 is provided on a front panel 3 of an air conditioner (the overall view is omitted), and the blowout port 2 has the same plate-like shape. An upper wind direction changing blade 4 and a lower wind direction changing blade 5 are provided. The upper and lower wind direction changing vanes 4 and 5 have second ends 4a and 5a in the longitudinal direction (only one end is shown in the figure).
As shown in the figure, the rotary shaft 7a,
Provide 7b. In the side frame 8 (FIG. 1) of the outlet 2, shaft holes 9a and 9b are opened so that the upper and lower wind direction changing blades 4 and 5 face in the vertical direction and close the outlet 2. Holes 9a, 9b
The rotary shafts 7a and 7b are penetrated through. Therefore, since the one end a10 of the upwind direction changing blade rotates on the arc line 11 centering on the rotation axis 7a, it is slightly separated from the arc line 11 and blows out from the air outlet 2
Since the upper side frame 12 is provided, and one end b13 of the downwind direction changing blade rotates on the arc line 14 centered on the rotation axis 7b, the downwind direction changing blade 5 is oriented vertically on the arc line 14. A lower side frame 15 is provided at a place where it sometimes contacts. Gears having the same number of teeth in the same module are provided at the tips of the rotary shafts 7a and 7b, the rotary shaft 7a serves as an upper shaft gear 16, and the rotary shaft 7b serves as a lower shaft gear.
The adjustment gear 18 is provided as 17 (usually only on one side), and further meshes with the upper shaft gear 16 and the lower shaft gear 17 together.
Is attached to a side of the side frame 8 with respect to the air outlet 2 on an adjusting gear shaft 19 protruding in a cylindrical shape, and is held by a pin 20.

In the above configuration, when the upper and lower wind direction changing vanes 4 and 5 are oriented in the vertical direction as shown in FIG. One end a
10 is close to the upper side frame 12, and one end b13 of the downwind direction changing blade 5
Comes into contact with the lower side frame 15 to close the air outlet 2. When operating the air conditioner, for example, one end a10 of the upwind direction changing blade 4
By pushing in the vicinity of, the upper shaft gear 16 propagates through the adjusting gear 18 to the lower shaft gear 17, and the downwind direction changing vane 5 also rotates by the same angle. The changing blades 4 and 5 have the function of changing the wind direction. At this time, the rotating shaft 7
Since a and 7b are made from the blade cross-sections 6a and 6b, the arc line 11 drawn by one end a10 rotating to the inner side of the outlet 2 is the circle drawn by one end b13 rotating from the outlet 2 to the front panel 3 side. Arch wire 1
4, and even if the upper and lower wind direction changing blades 4 and 5 are rotated, one end b13 is hardly exposed from the front panel 3 (the two-dot chain line in FIG. 5 shows the 45 ° downward and horizontal position.)

Further, when the upper and lower changing blades 4 and 5 are rotated by the motor, the shaft of the motor may be provided at the adjusting gear shaft 19.

EFFECTS OF THE INVENTION As is apparent from the above-described embodiments, according to the present invention, by providing the adjusting gear that meshes with both the upper shaft gear and the lower shaft gear provided on the rotating shafts of the upper and lower wind direction changing vanes, Because it can be closed by changing the wind direction for each up and down,
If the air outlet is closed when the air conditioner is stopped, dust will not enter and will not blow out when operation is resumed.The rotation angles of the upper and lower wind direction blades are always the same, and movement is also possible. It is smooth and has the advantage that the wind direction changing function can be easily obtained. Furthermore, by providing a rotary shaft farther from the blade blade surface, the wind direction changing blade is located on a surface close to the front panel when the air outlet is closed, and the front part of the wind direction changing blade comes out of the front panel even when the wind direction is changed. Since there are almost no cases, it is a device that can respond to design requests,
It has many advantages.

[Brief description of drawings]

FIG. 1 is a perspective view showing a blowout changing device for an air conditioner according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line AA of the blowout changing device for the air conditioner, and FIG. 3 is a conventional air conditioner. FIG. 4 is a sectional view of the air conditioner, and FIG. 4 is a perspective view showing a blowing device of a conventional air conditioner. 4 …… Upward wind direction changing blades, 5 …… Down wind direction changing blades, 7a, 7b
…… Rotary shaft, 8 …… Blade side frame, 16 …… Upper shaft gear, 17
...... Lower shaft gear, 18 …… Adjustment gear.

Claims (1)

[Claims] 1. A plurality of plate-shaped airflow direction changing blades are provided at the air outlet, and the rotation axis of each airflow direction changing blade is provided at a position apart from the blade blade surface portion to penetrate the air outlet side surface frame.
A shaft gear having the same number of teeth is formed vertically at the end of the rotary shaft, and an adjusting gear having the same module that engages with the upper and lower shaft gears is provided, and the angle of each wind direction changing blade is set. A blowout changing device for an air conditioner that adjusts and closes and opens the blowout port.