JPS6131845A - Airflow direction deflecting device for air-conditioning machine - Google Patents

Abstract

PURPOSE:To make it possible eliminate the reduction of amont of air blow and the stortening of arriving distance of airflow during horizontal blow-off so that horizontal air blow-off is effected more efficiently without loosing Coanda effect by a fluid guide plate when the airflow is deflected downward by a method wherein a horizotal control plate and the fluid guide plate are interlocked by a connecting plate. CONSTITUTION:The horizontal control plate 22 and the fluid guide plate 27 are interlocked by the connecting plate 23. When the connecting plate 23 is pivoted downward, a jet stream A below the horizontal control plate 22 is deflected downward by the curved surface of the fluid guide plate 27. A jet stream B in the upper part of the device is pushed downward by the back pressure of a bias section 21, joins the jet stream A and is blown off downward as a jet stream C. When the connecting plate 23 is pivoted upward, the jet stream B above the horizontal control plate 22 is blown off horizontally. A jet stream E in the lower part of the device is ascended by adhering to the curved surface of the fluid guide plate 27 due to the Coanda effect, joins the jet stream B and is blown off horizontally as a jet stream F. In this case, the jet stream E adheres to the lower surface of the horizontal control plate 22 due to the Coanda effect and joins the jet stream B effectively.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a wind direction deflection device installed inside a discharge port of an air conditioner to guide discharged air in any vertical direction.

Conventional configurations and their problems Traditionally, air conditioners (hereinafter referred to as air conditioners) have been required to have the function of comfortable air conditioning for living spaces. Techniques related to various factors such as the distance the wind reaches are being studied.

A conventional wind direction deflection device for an air conditioner under this situation will be described below with reference to the drawings.

FIGS. 6 and 7 show the structure of a conventional ceiling discharge type air conditioner. 1 is the air conditioner main body, and inside there is a blower 2,
A discharge port 4 is provided in front of the heat exchanger 3. A fluid guide plate 5 is fixed below the discharge port 4 and is provided over almost the entire width of the discharge port 4 in the longitudinal direction. This fluid guide plate 5
rises from the lower end of the discharge port 4 toward the rear of the main body 1, forming an arcuate curved surface having its apex slightly rearward from the front surface of the discharge port 4, and forming a linear surface descending rearward from the apex.

A horizontal control plate 6 is disposed above the fluid guide plate 6 and is rotatably supported over almost the entire width in the longitudinal direction of the discharge port 4 . Furthermore, a protruding bias portion 7 is provided above this, and these form a wind direction deflection device.

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

First, in the case of downward blowing, as shown in Fig. 6, the horizontal control plate 6
When the fluid guide plate 6 is rotated so that the downstream side faces downward, the jet flow A below the horizontal control plate 6 is caused to adhere to the curved surface of the fluid guide plate 6 due to the Coander effect and is deflected downward. Further, the jet stream B above the horizontal control plate 6 is pushed downward by the back pressure from the bias section 7, and is also attracted by the jet stream A shown in FIG.

Next, in the case of horizontal blowout, as shown in Fig. 7, the horizontal control plate 6
By rotating so that the downstream side faces slightly upward from the horizontal direction, the jet flow below the horizontal control plate 6 is divided into a jet flow that adheres to the curved surface of the fluid guide plate 5 and is deflected downward, and a jet flow that adheres to the curved surface of the fluid guide plate 5 and is deflected downward. 6 and separates into a jet stream A which is deflected in the horizontal direction. Further, although the jet B above the horizontal control plate 6 is pushed downward by the back pressure from the bias section 7, it is pushed back in the horizontal direction by the horizontal control plate e and merges with the jet A.
It is blown out horizontally as a jet C. However, the jet stream C and the jet stream have different blowing directions and do not merge.

In the above configuration, in order to obtain a deflection effect during downward blowing, a fluid guide plate 5 having an arcuate curved surface that deflects the jet flow A below the horizontal control plate 6 is provided.

That is, this arc-shaped curved surface 5 is effective only when deflecting downward.
At the time of horizontal blowing, this effect is not present, but on the contrary, it worsens the horizontal blowing performance. For this reason, it is necessary to rotate the downstream side of the horizontal control plate e so that it faces slightly upward. For these reasons, a fixed fluid guide plate is unnecessary for horizontal blowout, and the blowout air volume and air reach decrease due to a decrease in the blowout wind speed due to the branch blowout of the jet flow. In addition, horizontal blowout is often used for cooling, and when cooling, it releases heat.

Frost builds up on the exchanger, and the airflow volume tends to decrease even under normal conditions. Therefore, the rotational speed of the blower must be increased and the motor output must be increased, which is disadvantageous in that it goes against the objectives of low noise and energy conservation.

Purpose of the Invention In view of the above-mentioned drawbacks, the present invention has been made to improve efficiency by eliminating the loss of the Coanda effect caused by the fluid guide plate during downward deflection, and eliminating the reduction in air volume and the range of air flow during horizontal blowout. The present invention provides a wind direction deflection device which is capable of horizontally blowing air and which can be rotated with a simple operation similar to the conventional one.

Structure of the Invention In order to achieve this object, the wind direction deflection device of the present invention includes a horizontal control plate that rotates in conjunction with a rotatable fluid guide plate disposed at the lower part of the discharge port, and a connecting plate that rotates in conjunction with the rotatable fluid guide plate. With this configuration, when deflecting downward, the fluid guide plate forms an arcuate curved surface that slopes downward toward the discharge port, thereby achieving an effective Coanda effect. Furthermore, by bringing the end of the fluid guide plate closer to the horizontal control plate during horizontal blowout, it does not obstruct the air path, unifies the jet stream, and enables efficient horizontal blowout.

DESCRIPTION OF THE EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.

FIG. 1 shows a ceiling type air conditioner according to an embodiment of the present invention. Reference numeral 8 in FIG. 1 is an air conditioner main body, and the inside of this main body 8 is divided by a partition plate 9 into a ventilation chamber 10 and a heat exchange chamber 11.

The ventilation chamber 1o is equipped with a suction port 12, a casing 13 containing a sirocco fan (not shown), and a motor 14 for driving the fan. Inside the heat exchange chamber 11 is a side plate 15
The heat exchanger 16 is supported by a heat exchanger 16 (the opposite side is not shown), and a drain tray 17 is provided below the heat exchanger 16. Further, a discharge port 18 equipped with a wind direction deflection device is formed on the front surface of the main body 8. Above the discharge port 18 is a top plate 1 whose tip is bent into a U-shape.
9, a heat insulating material 20 affixed to its inner surface, and a bias portion 21 fixed to the wall surface of the U-shaped portion. In the center, a plate-shaped horizontal control plate 22 has support shafts 22a protruding from the end faces on both sides, and the support shafts 22a are inserted into shaft support holes 15a formed in the side plates 15 to be rotatably supported. ing. Further, the support shaft 2 is attached to one end of the horizontal control plate 22.
A sliding shaft 22b projects from the front of 2a, and is inserted into a sliding hole 23& formed in a connecting plate 23 interposed between the horizontal control plate 22 and the side plate 15. The lower part of the discharge port 18 is composed of a bottom plate 24, an inclined guide plate 25, and a heat insulating material 26 held between them. The inclined guide plate 25 has a flat surface 25a that slopes downward at the rear end and contacts the drainage tray 17, with the apex at the bottom of the rear end of the horizontal control plate 22. Also, the front part is L
It has a concave portion 26b bent into a letter shape, and the end portion is in contact with the bottom plate 24.

In the concave portion 25b, a fluid guide plate 27 having an arcuate curved surface facing forward of the discharge port 18 and sloping downward has a support shaft 27a protruding from the end surface at both ends thereof, and a support hole 23b of the connection plate 23 is provided on the side of the connection plate 23. The other end is directly supported by the side plate (not shown) so as to be rotatable.

Further, on the connecting plate 23 side of the fluid guide plate 27, a rotating shaft 27b is provided protruding in front of the support shaft 27a.
It is inserted into a rotation hole 23c formed in the connecting plate 23 interposed therebetween. The connecting plate 23 has the sliding hole 2 as described above.
3a1 support hole 23b1 rotation hole 23c are bored.

Furthermore, an operating handle 23d is provided at the tip. Further, the vertical wind direction deflection device is configured by the arrangement relationship with the bias section 21, the horizontal control plate 22, and the fluid guide plate 27.The operation of the wind direction deflection device configured as above will be explained below. .

The horizontal control plate 22 and the fluid guide plate 27 are interlocked by the connecting plate 23, and in the case of downward deflection, when the connecting plate 23 is rotated downward, the horizontal control plate 22 and the fluid guide plate 27 are rotated downward. do. At this time, the jet stream A below the horizontal control plate 22 is attached to the curved surface of the fluid guide plate 27 and deflected downward. The jet B above the horizontal control plate 22 is pushed downward by the back pressure of the bias section 21, merges with the jet A, and is blown out downward as a jet C.

Further, in the case of horizontal blowout, when the connecting plate 23 is rotated upward, the horizontal control plate 22 and the fluid guide plate 27 are rotated upward. At this time, the jet stream B above the horizontal control plate 22 is pushed downward by the back pressure of the bias section 21, but is pushed back in the horizontal direction by the horizontal control plate 22 and is blown out horizontally. The jet E at the lower part of the horizontal control plate 22 adheres to the curved surface of the fluid guide plate 27 due to the Coanda effect, is raised, merges with the jet B, and is blown out horizontally as a jet F. At this time, the jet stream E is
□ As described above, according to this embodiment, by providing the fluid guide plate 27 that rotates in conjunction with the horizontal control plate 22, When deflecting downward, it blows out downward as in the conventional case. In addition, for horizontal blowout, the rotation of the fluid guide plate 27 effectively causes the jet E to obtain a Coanda effect and merge upward to form the jet F. This makes it possible to perform horizontal blowout efficiently and to control the flow of water relative to the blowout flow. Effects of the invention that can eliminate losses As described above, the present invention provides a connecting plate, a horizontal control plate, and a fluid guide plate, and arranges a wind direction deflection device that interlocks the horizontal control plate and the fluid guide plate. In addition, by effectively utilizing the fluid guide plate in the operation of deflecting the wind direction, the Coanda effect can be effectively obtained during downward deflection, allowing smooth and efficient downward deflection.

In addition, the Coanda effect can be effectively obtained even when blowing horizontally, and the jet can be blowed out horizontally smoothly and efficiently.
Since the inside of the discharge port can be narrowed without creating an obstruction in the air path and without causing pressure loss, it is possible to increase the discharge air speed and extend the distance the air reaches without causing a decrease in air volume. Noise sources such as air root sound and wind noise are shielded by the fluid guide plate, contributing to noise reduction, which has great practical effects.

[Brief explanation of drawings]

FIG. 1 is a sectional view of an air conditioner in an embodiment of the present invention,
Fig. 2 is a structural diagram of the wind deflection device, Fig. 3 is an operation diagram of the wind deflection device, Fig. 4 is a downward deflection diagram, Fig. 5 is a horizontal blowout diagram,
FIG. 6 is a downward view of a conventional air conditioner, and FIG. 7 is a horizontal blow-out view. 1...Air conditioner body, 18...Discharge port, 22...Horizontal control plate, 23...Connection plate, 23a... Sliding hole, 23b...
Support hole, 23c...Rotation hole, 27...
Fluid guide plate. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 6 Figure 7

Claims (1)

[Claims] a horizontal control plate rotatably supported approximately at the center of the discharge port of the air conditioner; a fluid guide plate having a curved surface rotatably supported below the discharge port; and the horizontal control plate. a connecting plate for interlocking the horizontal control plate and the fluid guide plate, the connecting plate having a sliding hole for rotationally guiding the horizontal control plate, a rotation hole for rotationally guiding the fluid guide plate, and a support hole for passing a support shaft therethrough; Air deflection device for air conditioners.