JPH0465303B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a flow direction control device that deflects a flow blown out from an air conditioner or the like in an arbitrary direction, and in particular to a flow direction control device that largely deflects the flow in the left-right direction of a horizontally elongated discharge port. related to things.

Prior Art As shown in Figures 9 and 10, the conventional flow direction control device when the aspect ratio H/W (see Figure 2 for H and W) is small uses a plurality of curved rotating blades. 1 arranged in a row. 2 is a vertical deflection vane for deflecting the flow in the vertical direction. (Indicated by a chain double-dashed line in the figure). 3 and 4 are left and right walls, respectively, which deflect the flow to the left and right by rotating the curved blade 1.

Problems to be Solved by the Invention In conventional flow direction control devices, the curved blade faces to the left, so the flow is deflected well to the left, but when trying to deflect it to the right, the air flow resistance increases. , cannot be significantly deflected.
Also, when deflecting the flow to the left,
The flow collides with the wall 3 on which the upper and lower deflection vanes are arranged, making it difficult to effectively deflect the flow to a large extent. There were two problems mentioned above.

Means for Solving the Problem In order to solve this problem, the present invention provides a pair of left and right wall surfaces provided at both ends of the passageway in the longitudinal direction;
A pair of rotatable left and right blades arranged near each of the wall surfaces and having curved surfaces so as to follow the respective wall surfaces, and a pair of rotatable left and right blades arranged in a row with a space between them comprising a plurality of rotatably arranged blades having curved surfaces, and a rotation regulating means for restricting rotation of the blades at a position where a pair of adjacent blades are rotated by a predetermined angle,
The plurality of blades are arranged in a position that promotes the flow passing between the blades to adhere to the convex curved surface of each blade, and a pair of blades near the wall surface are arranged in a predetermined position. The wall surface is arranged at a position where the flow deflected by the vane does not collide with the wall surface when angularly rotated. In other words, the wall surface is located at a position upstream of a tangent extending from the downstream end of the blade.

Effect With the above configuration, when the blades are tilted toward a nearby wall surface, the flow passing between the blades adheres to the convex surface of each blade and is significantly deflected. At this time, since the flow is deflected by the effect of adhesion to the curved surface, there is almost no decrease in the air volume, and it is possible to largely deflect the flow without changing the air volume. Furthermore, since each blade faces in the opposite direction, the flow can be deflected over a wide angle in either the left or right direction.
Moreover, the pair of blades near the wall surface are set at a predetermined angle (this is the angle when the flow is desired to be deflected to the maximum),
When the blade rotates (determined by the rotation regulating means), the wall surface is located at a position upstream of the tangent line extending from the downstream end of the blade, so that it adheres to the curved surface of the blade, The flow exiting in the tangential direction of the downstream end of the curved surface effectively adheres to the guide wall and flows without colliding with the wall surface. Collision in this case is defined as an increase in surface pressure on the wall surface that is greater than atmospheric pressure due to the flow colliding with the wall.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 6. In FIGS. 1 to 3, reference numeral 5 denotes a blowing passage having a rectangular cross section and having an inlet 6 and an outlet 7. Reference numerals 8 and 9 denote a pair of left and right wall surfaces provided at both ends of the exit 7 in the direction toward the rear. (This guide wall is curved in the figure, but if it were straight, the effect would be less, but the operation would be almost the same.) 10 and 11 are
A pair of rotatable left and right blades are arranged near wall surfaces 8 and 9, respectively, and have curved surfaces so as to follow the respective wall surfaces 8 and 9. There are a plurality of blades 100 and 110 between the blades 10 and 11, which promote the flow passing between the respective blades to adhere to the convex curved surfaces 10b and 11b of the respective blades. The blades are arranged substantially on the same axis, and the interval H between the blades is set to be smaller than the chord length l of the blade (l and H are shown in FIG. 3). Note that considering the resistance of the air flow, it is better to have a smaller total number of blades, so it is desirable that the interval H and the chord length l are approximately equal. In addition, the wall surfaces 8 and 9 are tangent lines 12 extending from the downstream end of the blade 10 when the blade 10 is tilted at a predetermined angle (the angle of the blade when it is desired to deflect the flow most: the angle shown in FIG. 1 as an example).
and 13. Also, rotation regulating means (stopper) 120, 13 for regulating the rotation angle of the blades 10 and 11.
0 are provided near the blades 10 and 11, respectively. In addition, when the blades 10 and 11 are rotated by a motor or the like, the angle range may be set by a microcomputer program instead of the stopper.

In the above configuration, the blade 1 as shown in FIG.
At rotational positions 0 and 11 and 100 and 110, the flow continues straight between the blades, and both the left flow F _L and the right flow F _R travel straight. Next, as shown in FIG.
and 110 are tilted in the direction of the guide walls 8 and 9, respectively, the flow a in the figure is caused by the concave surface 1 of the blade 10.
It flows toward the wall surface 8 due to the action of _0a1 . b
The flow is caused by the concave surface 100a ₂ of the blade 100 because the interval H between the blades is smaller than the chord length l of the blade.
It adheres to the convex surface _10b1 and flows due to the action of . Similarly, C flows while adhering to 100b ₂ . The flow adhering to the convex surfaces of these vanes is deflected at a wide angle and flows out. These flows are caused by walls 8 and 9 being connected to blade 1.
Since it is on the upstream side of tangent lines 12 and 13 extending from 0 and 11, it does not collide with the wall surface and flows effectively. As a result, the flow is deflected over a wide angle with almost no reduction in air volume. Next, as shown in FIG.
and 110 are tilted in a direction away from the wall surface 9, the flow flows out slightly to the left without adhering to the wall surface. As above, feathers 10 and 1
According to the rotations of 1, 100, and 110, it is possible to deflect the flow to the left and right over a wide angle, or to blow it out to the front. Furthermore, since this deflection action utilizes the adhesion effect of the flow, it has the advantage of hardly changing the air volume. Moreover,
Since it is symmetrical, it is possible to deflect the flow over a wide angle to both the left and right sides.

In addition, by changing the ratio of the number of blades 100 and 110, the ratio between the left flow F _L and the right flow F _R can be changed, making it possible to perform optimal blowout control depending on the purpose. becomes.

FIGS. 7 and 8 show a case where the above embodiment is applied to a wall-mounted heat pump air conditioner. In the figure, 14 is the indoor air conditioner main body, 15 is a cross flow fan, 16 is a heat exchanger, 17 is a louver for vertical deflection, and 18 and 19 are connections for simultaneously rotating blades 10 and 11 and 100 and 110, respectively. , 20 and 21 are levers for rotating the blades 10 and 11 and 100 and 110. When the crossflow fan 15 rotates in this configuration, the flow is sucked through the heat exchanger 16, deflected at a wide angle left and right by the flow direction control device of the present invention, and vertically deflected by the vertical deflection louvers 17. It is deflected and flows out. And lever 20
By operating the and 21 to rotate the blades 10 and 11 and 100 and 110, the flow can be deflected over a wide angle in any direction, and comfortable air conditioning can be achieved regardless of the installation position of the air conditioner. I can do it.

Effects of the Invention As described above, according to the flow direction control device of the present invention, a plurality of rotatable blades curved so as to direct the flow along a pair of left and right wall surfaces are arranged between the respective wall surfaces, and the wall surface is arranged so that the flow adheres to the convex surface of each blade, and the wall surface is located at a position where the flow deflected by the blade does not collide with the wall surface when a pair of blades near the wall surface is rotated by a predetermined angle. This configuration has the following effects.

(1) The adhesion effect of the flow to the convex surface of the curved blade is effectively utilized by walls arranged so that the flow does not collide, and the flow can be directed to any position at a wide angle without changing the air volume. It becomes possible to deflect.

(2) Since each blade faces in the opposite direction, it is possible to deflect the flow over a wide angle to the right or left.

(3) Due to the above effects, when applied to an air conditioner etc., air conditioning flow can be sent to a wide area regardless of the installation position of the air conditioner, and a great air conditioning effect can be obtained.

[Brief explanation of drawings]

FIG. 1 is a plan sectional view of a flow direction control device showing an embodiment of the present invention, FIG. 2 is a front view of FIG. 1, FIG. 3 is a partially enlarged view of FIG. 1, and FIGS. Figure 6 is a plan sectional view of the same device, Figure 7 is a front sectional view when the same device is applied to a wall-mounted heat pump, Figure 8 is a side sectional view of the same, and Figure 9 is a conventional flow direction control. A plan sectional view of the device, FIG. 10 is a front view of FIG. 9. 5...Aisle, 6...Entrance, 7...Exit, 8,9
... Wall surface, 10, 11, 100, 110 ... Feather, 12, 13 ... Tangent line.

Claims (1)

[Scope of Claims] 1. A pair of opposing left and right walls forming a part of a passageway having an inlet and an outlet, and a channel that is disposed in the vicinity of the pair of wall surfaces and that directs flow in each direction of the pair of wall surfaces. a pair of rotatable blades each having a curved surface to face; a plurality of rotatable blades each having a curved surface arranged in a line with a space between the pair of blades; and at least the wall surface of the blades. a rotation regulating means for regulating the rotation of a pair of adjacent blades within a predetermined angle, and a position where flows deflected by the blades do not collide when the pair of blades near the wall surface are rotated by the predetermined angle. A flow direction control device in which the wall surface is arranged at. 2. The wall surface is configured such that when a pair of blades near the wall surface is rotated by a predetermined angle, the wall surface is located at a position upstream of a tangent extending from the downstream end of the blade. flow direction control device. 3 A plurality of blades are divided into two left and right blade groups with respect to a pair of left and right blades arranged near a pair of walls, and each blade group is arranged in the same direction as the left and right pair of blades in the vicinity of each blade group. A flow direction control device according to claim 1, which is configured to rotate angularly.