JPH0638277Y2 - Floor outlet for air conditioning - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of use) The present invention relates to a floor outlet for air conditioning, which allows remote adjustment of the outlet angle.

(Prior art and its problems) Conventionally, a floor blowout air-conditioning system that blows out conditioned air from the floor has been adopted as a system for air-conditioning a room in which precision equipment such as a computer that is easily affected by temperature and humidity is installed. As an air outlet used in this system, there is a floor outlet having a structure as shown in FIG. 4, which is a cylindrical outlet main body having a conditioned air intake a ′ at the lower end opening. An outlet grill b having a plurality of concentric outlet gaps b '... b'is detachably attached to the upper end opening of a, and the shafts c' ... A plurality of guide blades c ... C on which the shafts c ″ ... C ″ at the other end are pivotally supported are provided in a bearing d which is supported and fixed to the central portion of the main body a, and the central portion of the blowout grill b is provided. By rotating the knob e exposed from the ring, a plurality of rings are engraved on the lower surface of the knob. The gears c ... c integrated with the shafts c "... c" meshing with the teeth of the gears are rotated, whereby the guide vanes c ... c are swung to a desired angle to adjust the diffusion angle. It was

However, in the floor outlet having the above structure, when adjusting the diffusion angle, it must be done manually one by one,
Since the adjusting operation is complicated, a motor is provided inside the main body a and the knob is rotated by this motor. However, an extremely large torque is required to rotate the plurality of guide blades c ... c. A large-sized motor is required, which is not only expensive, but also causes a malfunction due to the trapping of dust in the gear portion, which is a practical problem.

(Object of the Invention) In order to solve the above-mentioned problems of the prior art, the present invention fixes the guide blade for varying the diffusion angle to the maximum diffusion angle, and controls the flow of conditioned air diffused by the guide blade. It is an object of the present invention to provide a floor air outlet for air conditioning, which is controlled by an air flow from a bypass passage that blows conditioned air vertically to adjust a diffusion angle.

Structures (invention disclosure) air-conditioning the bed outlet according to the present invention is the upper end opening of the air outlet body 1 of a bottomed cylindrical shape with the inlet 1 ₁ intake conditioned air holes bored in the side wall, a plurality of outlet gap 2 ₁ ... 2 ₁ detachably mounting the outlet grille 2 formed with, the body central portion of the outlet grille downward diffusion angle of air a plurality of guide vanes 3 ₁ ... 3 ₁ the ring 3 in the ₂ the air diffuser 3 provided to be inclined so as to maximize, to the central portion of the main body 1 so that the ring-shaped bypass passage a is formed between the ring 3 and _second outer peripheral and side walls of the main body 1 fixed A ring-shaped shield plate 4 which is fixedly provided to the attached mounting member 6 and closes the bypass passage A in a ring 4 ₂ supported by a plurality of support rods 4 ₁ ... 4 ₁ below the air diffuser. It is characterized in that a damper 4 to which ₃ is fitted and fixed is provided so as to move up and down by driving a motor 5.

In addition, the drive mechanism of the damper 4 has a screw shaft 51 whose upper end is pivotally supported by the mounting member 6 and which is rotated by the drive of a motor 5 fixed to the central portion below the main body ₁ and screwed to this screw shaft. A nut integrally fixed to the support rod 4 ₁ ... 4 ₁ at the center of the damper 4.
5 ₂ and consists Sutotsupa 5 ₃ for preventing rotation of the damper, in which damper 4 moves up and down by the rotation of the screw shaft 5 _1.

In the figure, 7 is a cylindrical rotary drum with a bottom for adjusting the amount of air introduced from the conditioned air intake ₁₁ into the main body 1, that is, the amount of blown air. is, the side wall is formed with holes corresponding to the inlet conditioned air of the main body 1, the maximum air volume when the hole corresponds all the inlet 1 ₁ intake conditioned air to rotate the rotary drum 7 by hand, varying the area of the inlet 1 ₁ intake air by displacing the holes from the corresponding position of the inlet 1 ₁ intake air, and adjusts the introduction air volume i.e. airflow volume. Reference numeral 8 denotes an infrared receiver embedded in the exposed portion of the upper end of the mounting member 6 for controlling energization of the motor 5 by a signal from the emitter.

(Operation of the Invention) The operation and effect of the floor outlet of the present invention will be described with reference to the illustrated embodiment according to the above-described configuration of the present invention.

That is, the second view, as shown in FIG. 3, the conditioned air supplied from the underfloor duct or underfloor supply plenum chamber (not shown) entering from the inlet 1 ₁ intake air into the main body 1, the support of the damper 4 through the lever 4 ₁ ... 4 ₁ gap, but through the air diffuser 3 or the bypass passage a is the blown from the blow-out grille 2 into the room, as Figure 2, the damper 4 is in the raised position, shielding guide ring a of the plate 4 ₃ passages a ',
When the open end of A ″ is closed, all the conditioned air is blown out into the room through the air diffuser 3. The guide vanes 3 ₁ ... 3 ₁ of the air diffuser 3 diffuse the air in advance. The conditioned air that has passed through the air diffuser 3 is blown out from the blow-out grill 2 substantially in parallel with the floor surface as indicated by the arrow because it is inclined so that the angle becomes maximum. When the rotor is energized to drive the rotor and the screw shaft 5 ₁ is rotated in the direction in which the damper 4 is lowered, the damper 4 is prevented from rotating by the stopper 5 _3, so that the nut 5 ₂ is a spiral groove of the screw shaft 5 ₁ . pushed descends, the bypass passage a is opened by the lowering of the nut 5 ₂ integral with the damper 4, the outlet grille 2 part of conditioned air through the gap portion of the damper 4 through the bypass passage a It is blown out vertically, blown out from the blowout grill 2 through the air diffuser 3. Since the vertical conditioned air flow suppresses the conditioned air flow, the diffusion angle of the conditioned air becomes small, that is, the air volume passing through the bypass passage A and the air diffuser 3
The diffusion angle of the conditioned air changes depending on the ratio of the amount of air passing through the damper 4. As the damper 4 descends and the amount of air passing through the bypass passage A increases, the diffusion angle becomes smaller and approaches a vertical airflow. .

After that, the diffusion angle of the conditioned air, that is, the blowing angle is adjusted by moving the damper up and down.

(Effect of the Invention) As described above, according to the floor outlet for air conditioning according to the present invention, the guide vanes for varying the diffusion angle are fixed at the maximum diffusion angle, and the conditioned air diffused by the guide vanes is adjusted. The flow is controlled vertically by the air flow from the bypass passage that blows out conditioned air, and the diffusion angle is adjusted by changing the amount of air blown from the bypass passage by the upward and downward movement of the damper driven by the motor. Since it is a structure that does not rotate multiple guide blades like the conventional floor outlet, it is not only easy to assemble, but also the motor used can move one damper up and down. Since it only needs to have a torque, a small low torque motor can be used and can be manufactured at low cost.
Since there is no gear to rotate the guide vanes, it does not cause malfunctions due to dust being caught in it, and it operates smoothly over a long period of time, making it practical as a floor outlet for air conditioning that can be remotely controlled. The effect is great.

[Brief description of drawings]

The drawings illustrate an embodiment of the present invention. FIG. 1 is a plan view of a half of a blowout grill of a floor outlet according to the present invention, which is cut away, and FIG. 2 is the same when a damper is raised. FIG. 3 is a vertical side view of the floor blower when the damper is descending, and FIG. 4 is a vertical side view of a conventionally known floor outlet. 1 ... Air outlet body, 2 ... Air outlet grill, 3 ... Air diffuser, 3 ₁
… Guide vanes, 3 ₂ … Rings, 4… Dampers, 4 ₁ … Support rods, 4 ₂
... Ring, 5 ... Motor, 6 ... Mounting member, 7 ... Rotating drum, 8 ... Infrared receiver

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Yoshiji Kuzuhara 1-4-5 Minamimorimachi, Kita-ku, Osaka City, Osaka Prefecture Shinko Industry Co., Ltd. (72) Inventor Motohiro Gahara Minami Kita-ku, Osaka 1-4-5 Morimachi Shinko Industry Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A conditioned air intake opening formed in a bottom wall or a side wall.
1 ₁ and the upper end opening of the cylindrical air outlet body 1, the outlet grille 2 having a plurality of outlet gap 2 ₁ ... 2 ₁ freely mounted detachably, the body central portion of the outlet grille downward, the air diffuser 3 provided spreading angle of the air plurality of guide vanes 3 ₁ ... 3 ₁ the ring 3 in the ₂ to be inclined so as to maximize, the ring 3 ₂
Periphery and provided with fixed as a ring-shaped bypass passage A is formed between the side wall of the body 1, under the same air diffuser ring which is supported by a plurality of support bars 4 ₁ ... 4 ₁ 4 air-conditioning floor outlet, characterized in that provided so as to move up and down the damper 4 which is fitted and fixed a ring-shaped shielding plate 4 ₃ to close the bypass passage a by the driving of the motor 5 in _2.