JPH01281360A - Flow deflecting device - Google Patents

Abstract

PURPOSE:To avoid air flow against a human body and uniformize the temperature distribution in a room by the constitution that a plurality of vanes are rotated according to the temperature of air flow from an air conditioner and a vane holding member is rotated by the detection signal from a detection sensor for a detected human body, etc., in the direction of air flow. CONSTITUTION:When the temperature of air flow is higher than a specified temperature during room heating, a motor 13 is rotated according to the temperature signal for temperature detected by a temperature sensor 20 and a plurality of vanes 11 are rotated to blow out the air flow downwards. If in this direction of the air blow-out a man stands, he feels unpleasant by the direct wind to his body. In this case a detection sensor 19 detects the man in the direction of air flow and shifts the direction of the air flow by rotating a holding member 15 circumferentially with the rotating shaft 17 as the center to avoid the wind against the human body and not to let unpleasantness felt by the man. Since in this case the direction of air flow in the up-and-down direction is not changed, the temperature distribution in the room does not change and it is possible to keep pleasantness.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a flow deflection device that is installed at an air outlet or the like of an air conditioner and deflects a flow from an air source over a wide angle.

2. Description of the Related Art A case in which a conventional flow deflection device is applied to a ceiling-mounted air conditioner will be described. In FIG. 4, reference numeral 1 denotes a top-mounted air conditioner body, and 2 a flow deflection device which changes the blowing direction of the flow by rotating blades 21. 3 is a heat exchanger, 4 is a blower, and 5 is a suction filter. 6 is the ceiling, and 7 is the floor. In this configuration, the flow sucked through the suction filter 5 and heated or cooled by the heat exchanger 3 is deflected vertically by the flow deflection device 2, downward when the temperature of the stream is high and downward when the temperature of the stream is low. By blowing out in the horizontal direction, the room temperature distribution was made uniform.

Problems to be Solved by the Invention However, with the above configuration, if a human body 8 is present in the direction of the flow as shown in FIG. 4, the flow may hit the human body and cause discomfort. Further, when the direction of the flow is changed to avoid the human body 8, there is a problem that the temperature distribution becomes non-uniform.

The present invention solves such conventional problems, and aims to prevent the flow from hitting the human body and to make the temperature distribution uniform.

Means for Solving the Problems In order to solve the above problems, the flow deflection device of the present invention comprises:
a flow passage whose downstream end has a circular cross section; a plurality of deflection vanes that are provided near the downstream end of this passage and rotate around an axis substantially perpendicular to the flow direction; a blade rotation means for rotating; a blade holding member for holding a plurality of deflection blades; a holding member rotation means for rotating the blade holding member along a downstream end of the passage;
It has a detection sensor that detects a living thing such as a human body existing in the direction of the flow, and rotates a plurality of blades according to the degree of flow, and also responds to the detection signal of a human body etc. in the direction of the flow by the detection sensor. The blade holding member is rotated by rotating the blade holding member.

Effect With the above configuration, the plurality of deflection vanes rotate according to the temperature of the flow, and when the flow is tilted in a direction that maintains a constant temperature distribution in the room, even if a human body is present in the direction of the flow, it will not be affected. It is detected by a detection sensor and the blade holding member is rotated in the circumferential direction to avoid wind hitting the human body. Note that since the angle of the deflection blade is constant, the downward inclination angle of the flow is kept constant, and the temperature distribution in the room is kept uniform.

Example Embodiments of the present invention will be described below with reference to the accompanying drawings.

In FIGS. 1 and 2, 9 is the main body of the flow deflection device, 10
is a flow passage with a circular cross section (this only needs to be circular in cross section at the downstream end); 11 is a plurality of blades rotating around an axis 12 almost perpendicular to the flow F; near the downstream end of the passage 10; It is provided. The plurality of blades 11 are connected to the connecting bar 1
4) so that they all tilt in the same direction.

13 is a blade rotating means for rotating the plurality of blades 11, and uses a small motor. 15 is multiple feathers 1
1, and is connected to a rotating shaft 17 by a support rod 16.

Reference numeral 1B denotes a holding member rotating means, which is composed of a motor, and rotates the holding member 15 by rotating the rotating shaft 17, thereby rotating the plurality of force plates 11 in the circumferential direction. 19 is a detection sensor that detects human bodies and other living things, and is attached to the tip of a plurality of blades 11 to detect human bodies and living creatures that exist in the direction of the flow. It uses sensors. 20 is a temperature sensor for detecting the temperature of the flow.

FIG. 3 shows an example of use in which the present invention is applied to a ceiling-buried air conditioner. In FIG. 3, 21 is the indoor main body of the ceiling-mounted air conditioner, 22 is a fan, and 23 is a heat exchanger.

In the above configuration, as shown in FIG. 3, when the temperature of the flow during heating is higher than a predetermined temperature (approximately 40° C.), the motor 13 rotates in accordance with the temperature signal detected by the temperature sensor 20, and multiple The blades 11 are rotated to blow out the flow downward. In this case, it is optimal for the flow to be blown out in a direction tilted by about 15 degrees from directly below in order to make the temperature distribution uniform.

In the case of this blowing direction, there are often people in the direction of the flow, and the wind hits the person's body directly, causing discomfort. In contrast, in the present invention, the detection sensor 19 detects a human body present in the direction of the flow, and since the detection sensor faces in the same direction as the plurality of blades 11, the direction of the flow can be detected), F1 in FIG. By rotating the holding member 15 in the circumferential direction around the rotating shaft 17 due to the flow in the direction,
By moving it in the direction of F2, it is possible to avoid the wind from hitting the human body 8, thereby preventing discomfort. And in this case, since the direction of the flow in the dual direction has not changed,
The temperature distribution in the room does not change and comfort can be maintained.

Effects of the Invention According to the flow deflection device of the present invention, the following effects can be obtained.

Multiple deflection blades rotate according to the temperature of the flow, tilting the flow in a direction that maintains a constant temperature distribution in the room, and detecting the presence of a human body in the direction of the flow using a sensor. By rotating the blade holding member in the circumferential direction, it is possible to maintain a constant temperature distribution in the room and avoid wind hitting the human body, so it is possible to spend time comfortably at all positions in the room.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of a flow deflection device showing an embodiment of the present invention, Fig. 2 is a front view of the same device, and Fig. 3 is a view of a ceiling-mounted air conditioner to which the present invention is applied installed indoors. FIG. 4 is a cross-sectional view of a ceiling-mounted air conditioner using a conventional flow deflection device installed indoors. 9...Flow deflection device main body, 10...Flow passage. 11...Deflection blade, 12...Shaft, 13
...Blade rotation means, 15...Blade holding member, 18...Holding member rotation means, 19...
...Detection sensor. Name of agent: Patent attorney Toshi Nakao (1 person)
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Claims (4)

[Claims] (1) a flow passage whose downstream end has a circular cross section; a plurality of deflection vanes that are provided near the downstream end of the passage and rotate about an axis substantially perpendicular to the flow direction; A blade rotating means for rotating the blades, a blade holding member for holding the plurality of deflection blades, and a holding member rotating means for rotating the blade holding member along the downstream end of the passage, the blades being present in the flow direction. It has a detection sensor that detects a living thing such as a human body, and rotates the plurality of blades according to the temperature of the flow, and rotates the blade holding member according to a detection signal of a human body or the like in the direction of the flow by the detection sensor. A flow deflection device configured to rotate. (2) Claim 1 in which the plurality of blades are arranged parallel to each other.
Flow deflection device as described. (3) The flow deflection device according to claim 1, wherein the plurality of deflection vanes are connected to each other so as to rotate in the same direction. (4) The plurality of deflection vanes are configured to rotate so that the flow flows downward when the temperature is higher than a predetermined temperature and horizontally when the temperature is lower than the predetermined temperature. flow deflection device.