JPH0327231Y2 - - Google Patents

Description

[Detailed explanation of the idea] Industrial applications The present invention relates to an air conditioner.

Conventional technology Conventionally, for example, a ceiling-hanging air conditioner is equipped with upper and lower wind direction deflection devices for horizontal blowing and downward blowing depending on cooling or heating, and generally the air conditioners are equipped with upper and lower wind direction deflection devices such as those shown in Figs. 4 and 5. The configuration is as shown in .

In FIG. 4, reference numeral 1 indicates an air conditioner main body, in which a blower 2, a heat exchanger 3, and a discharge port 4 are arranged on the front surface. Inside the discharge port 4, a fluid guide plate 5 (hereinafter referred to as a fluid plate) having a curved surface is provided below.
A right-angled bias portion 7 is provided on the top plate 6 side of the discharge port 4 to form a nozzle portion 8. Further, by providing a horizontal control plate 9 rotatably supported approximately in the middle of the nozzle portion 8, a vertical wind direction deflecting device is formed.

The operation of the vertical wind direction deflection device configured as described above will be explained below.

First, in the case of downward blowout, by rotating the horizontal control plate 9 so that the downstream side faces downward, as shown by the broken line in FIG. Due to the back pressure of , it is blown out downward as jet A. In the case of horizontal jetting, by rotating the horizontal control plate 5 so that the downstream side faces slightly upward as shown by the solid line in FIG. 4, the jet stream B is separated from the curved surface of the fluid plate 5
It is blown out horizontally. However, the current trend in ceiling-hung air conditioners is to reduce the height of the main body in order to reduce the presence of the air conditioner when it is installed. Along with this, by making the discharge port thinner, the height of the main body also has the effect of making it feel even thinner. An example of a configuration in which a conventional vertical wind direction deflection device is mounted under such circumstances and the discharge port is made thin will be described with reference to FIG.

In FIG. 5, reference numeral 10 indicates an air conditioner main body, in which a blower 2, a heat exchanger 3, and a discharge port 11 are arranged on the front surface. On the upstream side of the discharge port 11, by making the discharge port 11 thinner, an inclined surface 13 is formed on a part of the top plate 12. Further, inside the discharge port 11, a fluid plate 14 having a downwardly curved surface is provided.
A right-angled bias section 15 is provided above and a nozzle section 16 is formed. a horizontal control plate 17 rotatably supported approximately in the middle of the nozzle portion 16;
By providing this, a vertical wind direction deflection device is formed.

The operation of the vertical wind direction deflection device configured as described above will be explained below.

First, in the case of downward blowing, by rotating the downstream side of the horizontal control plate 17 downward as shown in FIG. The air flow C flowing into the nozzle part 16 is directed downward, collides with the fluid plate 14, attaches to the curved surface, and flows downward, and merges with the flow D above the horizontal control plate 17 to form a jet E. This will cause it to blow out downward. In other words, almost no effect can be obtained from the bias section 15. In the case of horizontal blowout, by slightly rotating the downstream side of the horizontal control plate 17 upward as shown in FIG. Therefore, the flow is separated into an upward flow D and a flow F adhering to the curved surface of the fluid plate 14. These flows D and F merge to form a jet E, but in this case each flow D and F are attracted to each other, and the jet E is not blown out horizontally but is deflected slightly downward. It blows out like this.

Problems to be Solved by the Invention As described above, in response to the trend toward thinner body heights of ceiling-suspended air conditioners, a vertical air deflection device having the above-mentioned configuration is installed and the discharge port 11 If the nozzle section 16 is made thinner, the nozzle section 16 will inevitably become narrower due to the presence of protrusions such as the bias section 15 and fluid plate 14 necessary for deflection. Also, due to the inclined surface 13 on the upstream side of the nozzle part 16,
Since the flow itself flowing into the nozzle part 16 is directed downward, the discharge port 16 has to be further narrowed when blowing downward. At the same time, the effect disappears, and even if the flow is deflected horizontally by the horizontal control plate during horizontal blowout, the influence of the bias section 15 or when the flow below the horizontal control plate 17 attaches to the curved surface of the fluid plate 14 causes horizontal blowout. As mentioned above, environmental and energy problems such as increased noise due to increased pressure drop inside the machine, increased efficiency of the fan motor, and inability to arbitrarily deflect the wind direction occur. will have the following.

The present invention solves these conventional problems and provides a wind direction deflection device for an air conditioner that can reduce the height of the main body of a ceiling-suspended air conditioner.

Means for Solving the Problems The wind direction deflection device for an air conditioner of the present invention includes a slope part provided on a top plate, a bias part at the downstream end of the slope part, and a curved surface at the bottom of the bias part. A step portion is provided above the curved surface on a fluid plate and an upstream side of the fluid plate, and a nozzle portion is formed by the bias portion and the step portion. The nozzle includes an arcuate fluid control plate rotatably supported below the center of the nozzle portion.

Function The wind direction deflection device of the present invention has a bias section provided at the downstream end of the inclined section provided on the top plate, a step section provided at the upstream side of the curved surface of the fluid plate, and an arc-shaped section downward from the center of the nozzle section. By providing a fluid control plate, the nozzle part does not become narrow due to the thinning of the discharge port, and an increase in pressure loss is prevented.
During downward deflection, the fluid is effectively deflected downward by the inclined section, bias section, and arc-shaped fluid control plate, and during horizontal blowout, the flow adhering to the curved surface of the fluid plate is separated by the stepped section on the upstream side of the fluid plate. , which allows for effective horizontal ballooning.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a ceiling-suspended air conditioner according to an embodiment of the present invention. In FIG. 1, reference numeral 21 denotes an air conditioner main body, and the inside of this main body 21 has a fan casing 22 containing a Shirotsko fan (not shown), and a ventilation chamber 24 formed by a suction port 23 on the lower surface, and a heat exchanger. A heat exchange chamber 26 equipped with a container 25 is separated by a partition plate 27. Also, a drain pan 28 is installed at the bottom of the heat exchanger 25.
is located. A heat insulating material 32 is attached to the downstream side of the heat exchanger 25 along the inner surface of the top plate 29, and a slope portion 30 is formed by slanting a part of the top plate 29 diagonally downward toward the upstream side, which will be described later. A front discharge port 31 having a wind direction deflection device is configured. Discharge port 31
has a bias portion 33 having a surface perpendicular to the downstream end of the inclined portion 30 and an upper guide plate 34 having a horizontal surface downstream of the bias portion 33, and has a curved surface diagonally below the upper guide plate 34. A fluid guide plate 3 having
5, and a stepped portion 36 on the downstream side of the fluid guide plate 35.
A nozzle portion 37 is formed by the bias portion 33 and the stepped portion 36, and the nozzle portion 37
An arc-shaped fluid control plate 38 (hereinafter referred to as a fluid control plate) is rotatably supported below the center of the fluid control plate 38 . The vertical wind direction deflection device includes the above-mentioned inclined part 30, bias part 33, upper guide plate 34, and fluid guide plate 3.
5. It is configured by the respective arrangement relationships of the stepped portion 36 and the fluid control plate 38.

The operation of the wind direction deflection device configured as described above will be explained below.

First, in the case of horizontal blowout, the downstream end of the fluid control plate 38 is oriented slightly upward as shown in FIG. 2, so that the airflow that has been heat exchanged by the heat exchanger 25 flows into the discharge port 31. The upward flow of the airflow A becomes a downward flow B due to the inclined portion 30. Further, the horizontal flow C and the flow B are connected to the fluid control plate 3.
8, and are discharged horizontally by this fluid control plate 38, forming a horizontal flow port including the Coanda effect to the upper guide plate 34. Also, fluid control board 3
The flow E below 8 is drawn to the flow port without being attached to the fluid guide plate 35 by the stepped portion 36, and is blown out horizontally as a horizontal jet flow F. Next, in the case of downward blowing, as shown in FIG. do.
The upward flow B of the air flow A is guided downward by the inclined portion 30 and becomes a flow G directed downward by the bias portion 33. Further, the horizontal flow C is pushed downward by the flow G and the fluid control plate 38
A flow H flows downward along the arcuate surface. Further, the flow I below the fluid control plate 38 is deflected downward along the arcuate surface of the fluid control plate 38, and is further deflected downward by adhering to the curved surface of the fluid guide plate 35. These flows I attract an upward flow H, join together to form a blowout jet K, and are blown downward.

Effects of the invention As described above, the present invention has a slope part provided near the air outlet of the top plate, a bias part provided at the downstream end of the slope part, a fluid guide plate and a step part provided on the upstream side thereof, and the above-described structure. By providing a wind direction deflection device having a fluid control plate on an arc provided below the center of the nozzle part formed by the bias part and the step part,
In addition to the effect of the vertical wind deflection angle provided by conventional vertical wind deflection devices, in the case of horizontal blowouts, it is possible to deflect the air even more horizontally or slightly upward due to the attachment effect to the horizontal guide plate and the separation effect due to the step part. In the case of downward blowing, the effect of the inclined part and bias part and the effect of the arc-shaped fluid control plate made it possible to deflect the air even further downward, and the deflection angle of the wind direction was expanded. In addition, in order to meet the demands for thinning of current ceiling-hanging air conditioners, in addition to making the main body thinner, it is also necessary to make the air outlet thinner so that the sloping part becomes larger and the air outlet width becomes narrower. By ensuring the width of the conventional air outlet, the increase in pressure loss can be prevented by ensuring the width of the conventional air outlet. This is extremely advantageous in practice since it eliminates this problem without reducing it.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of a ceiling-suspended air conditioner showing an embodiment of the present invention, Fig. 2 is a cross-sectional view showing a horizontal air outlet near the air outlet in Fig. 1, and Fig. 3 is the same. Fig. 1 is a cross-sectional view showing the downward blowing state near the air outlet, Fig. 4 is a cross-sectional view of a ceiling-hanging air conditioner equipped with a conventional air deflection device, and Fig. 5 is a cross-sectional view of another conventional air deflection device. A cross-sectional view of a ceiling-suspended air conditioner equipped with the device. Fig. 6 is a cross-sectional view of the vicinity of the air outlet section showing the downward blowing condition shown in Fig. 5, and Fig. 7 is a cross-sectional view showing the horizontal blowing condition shown in Fig. 5. FIG. 3 is a cross-sectional view of the vicinity of the balloon shown in FIG. 30... Inclined part, 33... Bias part, 34...
...Horizontal guide plate, 35...Fluid guide plate, 36...Step portion, 37...Nozzle portion, 38...Circular fluid control plate.

Claims (1)

[Scope of utility model registration request] A top plate disposed upstream of the air outlet has an inclined part inclined obliquely downward to the downstream side, a bias part having a vertical surface arranged at the downstream end of the inclined part, and a bias part downstream from the lower surface of the bias. a horizontal guide plate having a horizontal surface; a fluid guide plate having a curved surface near the bottom of the bias portion; a step portion disposed upstream of the curved surface of the fluid guide plate and protruding upward from the curved surface; A wind direction deflection device for an air conditioner, comprising: a nozzle section formed by a bias section and the stepped section; and an arcuate fluid control plate rotatably supported below the vertical center of the nozzle section.