JPH0625794Y2 - Floor outlet for air conditioning - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an air-conditioning floor outlet in which the air volume can be adjusted at each outlet and a large diffusion angle can be obtained.

(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 is installed that is easily affected by temperature and humidity. 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 a whose lower end opening is an air intake a '. A blow-out grill b having a plurality of concentric blow-out gaps b '... b'is detachably attached to the upper end opening of the main body a, and 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 fixed to the central portion of the main body a in a radial arrangement, and By rotating the exposed knob e, a plurality of teeth carved in a ring shape on the lower surface of the knob. The gears c ... c integrated with the shafts c "... c" meshing with the shafts are rotated, whereby the guide vanes c ... c are swung to a desired angle to adjust the wind direction, and the blowing gap of the blowing grill b is adjusted. b '... b'
It was designed to adjust the diffusion angle of the conditioned air blown out from the.

However, since the floor air outlet having the above structure does not have an air volume adjusting function, the air volumes blown out from a plurality of floor air outlets provided on the floor surface of one room are all the same and unevenly distributed. Not only is there a drawback that the heat load cannot be dealt with, but depending on the mounting position of the guide vanes and the size of the blowing gap of the blowing grille, the blowing angle of the conditioned air may hardly change even if the wind direction is changed by the guide vanes. Even if the guide vanes were installed, it was sometimes meaningless.

(Object of the Invention) In order to solve the above-mentioned problems, the present invention provides the above-mentioned floor outlet with an air volume adjusting function, and defines the mounting position of the guide vanes and the size of the outlet gap of the outlet grill. It is an object of the present invention to provide a floor air outlet for air conditioning that can blow out conditioned air at a desired blowing angle.

Structure of the air-conditioning floor outlet according to (invented disclosed) the present invention is a hole bored in the side wall to the upper end opening of the cylindrical air outlet body 1 has an inlet 1 ₁ intake air, a plurality of outlet gap 2 ₁ other ... the outlet grille 2 formed with 2 ₁ freely mounted detachably, the shaft 3 ₁ ... 3 ₁ end is pivotally supported on the side wall of the main body 1 of the lower, the bearing 4 fixed to the central portion of the main body 1 A plurality of guide blades 3 ... 3 on which end shafts 3 ₂ ... 3 ₂ are pivotally supported are provided in a radial arrangement, and the guide blades 3 ...
3 is configured to be reciprocally rocked at once by driving a motor 7, and a damper 6 for opening and closing an air passage from the air intake ₁₁ to the outlet grill 2 by driving the motor 5 is provided.
The ratio / d of the average size and the outlet grille 2 thickness d of the short diameter portion of the outlet gap 2 ₁ of the outlet grille 2 with the 1,5 or more, leading to the upper end of the guide vane 3 from the bottom surface of the outlet grille 2 The feature is that the distance m is 50 mm or less.

As a mechanism for reciprocally swinging the guide vanes 3 ... 3 at the same time, the guide vanes 3 ... 3 are notched concentrically at the upper ends thereof, and the notches are commonly fitted to the respective rings 3 _a. 3 has a structure in which _a part of 3 is pivotally supported via a connecting fitting, and when the knob 3 a ₁ provided on a part of this ring 3 _a is pushed to reciprocally rotate the ring 3 _a horizontally, the guide blade 3
3 is reciprocally rocked about the shafts 3 ₁ and 3 _{2. When} this operation is performed electrically, a motor 7 is pivotally supported on the side wall of the main body 1 as shown in FIG. Then, the screw shaft 7 ₁ directly connected to the rotating shaft of the motor 7 is screwed into the screw hole of the projecting piece 3 a ₂ provided so as to project on the outer periphery of the ring 3 _a , and the motor 7 is rotated forward and backward. The ring _3a is horizontally rotated reciprocally, and the guide vanes 3 ...

Also, the damper 6, the by varying the area of the air inlet 1 ₁ intended to the disc-shaped so as to adjust the input amount or airflow volume intake of air, the drive mechanism of the damper to the upper end bearing 4 A nut 5 ₂ which is pivotally supported and which is integrally fixed to the center of a screw shaft 5 _{1 which} is rotated by the drive of a motor 5 which is fixed to the central portion below the main body 1 and a damper 6 which is screwed onto the screw shaft 5 _1. And a stopper 5 ₃ for preventing the damper 6 from rotating, and the damper 6 moves up and down by the rotation of the screw shaft 5 ₁ .

In the figure, reference numeral 8 denotes an infrared receiver embedded in the exposed portion of the upper end of the bearing 4, which controls the energization of the motors 5 and 7 by a signal from the infrared receiver to adjust the air volume and the blowing angle. It is a thing.

(Operation and Effect 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 configuration of the present invention.

That is, as shown in FIG. 2, an underfloor damper (not shown)
From the inlet 1 ₁ intake air conditioner air supplied it is partitioned by the damper 6 from invading the wind path, but of being blown from the outlet grille 2 into the room through the gap of the guide vanes 3 ... 3, the illustrated as if the damper 6 is in the raised position, a narrow gap from the upper end of the inlet 1 ₁ air intake up damper 6, the amount of conditioned air entering the air passage is small and substantially proportional to the distance, outlet grille From 2, a small amount of conditioned air is blown out. When the motor 5 is energized and driven at this upper end to rotate the screw shaft 5 ₁ in a direction to raise the damper 6, the damper 6 is prevented from rotating by the stopper 5 _3, so that the nut 5 ₂ is rotated by the screw shaft 5 1. pushed to _one spiral groove rises integrally with the damper 6, next to zero the amount of conditioned air when the result in closing the air passage entering from the inlet 1 ₁ intake air in the wind passage, the outlet air amount is zero. Rotate the motor 5 in the reverse direction and set the damper 6 to the air intake 1 ₁
Is lowered until the lower end the maximum amount of conditioned air enters the air passage from the inlet 1 ₁ air intake, airflow volume is maximized. Therefore, the amount of blown air can be adjusted by raising and lowering the damper 6.

Next, when it is desired to change the blowing angle of the conditioned air blown from the blowing grill 2, the ring 3 _{a is} manually or electrically operated as described above.
When a horizontally rotating, since the guide vanes 3 ... 3 changes the direction of the gap between the to guide vane swinging in unison, although the blowout angle changes, the average of the short diameter portion of the outlet gap 2 ₁ outlet grille 2 When the ratio of the dimension and the thickness dimension d of the blowing grill 2 / d is 1.5 or less, and when the distance m from the lower surface of the blowing grill 2 to the upper end of the guide blade 3 is 50 mm or more, the wind direction by the guide blades 3 ... 3 Since it was confirmed by experiment that the outlet angle does not change regardless of the change, / d must be 1,5 or more and m must be 50 mm or less when designing the proposed floor outlet. Guide blade 3 as long as this condition is satisfied
A desired blowout angle can be obtained by adjusting the swing angle of 3 ...

As described above, according to the floor outlet for air conditioning according to the present invention, a reliable condition for adjusting the outlet angle is experimentally obtained, and the air volume adjusting function is provided.
Defective products, such as conventional floor outlets, in which the outlet angle hardly changes even if the wind direction is changed by the guide vanes, can be removed at the design stage, and multiple floor outlets can be installed on the floor surface. The air volume can be adjusted at each floor outlet for air conditioning in the provided room, and it is possible to cope with uneven heat load that was impossible with conventional floor outlets. Therefore, the practical effect is great.

The blowout gap of the blowout grill is not limited to the concentric circular continuous formation of the embodiment of the present invention, but also includes independent punch holes, and the condition of the average size of the minor diameter portion does not change. .

[Brief description of drawings]

The drawings illustrate embodiments of the present invention. FIG. 1 is a plan view showing a half of a blowout grill of a floor outlet according to the present invention, which is cut away. FIG. 2 is a vertical side view of the same, and FIG. FIG. 4 is a plan view of an essential part of a mechanism for electrically swinging the guide vanes, and FIG. 4 is a longitudinal side view of a conventionally known floor outlet. 1 ... Air outlet main body, 2 ... Air outlet grille, 3 ... Guide blades, 4 ...
Bearing, 5 ... Motor, 6 ... Damper, 7 ... Motor, 8 ... Infrared receiver

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification number Reference number within the agency FI Technical display location F24F 13/15 D 6909-3L (72) Creator Michichi Okubo 1 Okawa-cho, Higashi-ku, Osaka-shi, Osaka Nichichi Yodo Yabashi Building Shinko Industry Co., Ltd. (72) Kenji Kashiwara 1 Okawa-cho, Higashi-ku, Osaka City, Osaka Prefecture Nichichi Yodo Yabashi Building Shinko Industry Co., Ltd. (72) Inventor Motohiro Igahara Osaka 1 Okawa-cho, Higashi-ku, Osaka-shi, Nikko Land Yodo-Yabashi Building

Claims (1)

[Scope of utility model registration request] 1. A lower end opening to hole drilling in the side wall to the upper end opening of the cylindrical air outlet body 1 has an inlet 1 ₁ air intake, outlet grille to form a plurality of outlet gap 2 ₁ ... 2 ₁ 2 Detachably mounted on the side wall of the main body 1 below the shaft 31 at _one end.
A plurality of guide vanes 3 ... 3 on which the other end shafts 3 ₂ ... 3 ₂ are pivotally supported are provided on a bearing 4 which is pivotally supported by 3 _{1 and which} is fixed to the central portion of the main body 1, and The guide blades 3 ... 3 are configured to be capable of reciprocating swing all at once by manual or electric operation, and a damper 6 for opening and closing an air passage from the air intake ₁₁ to the outlet grill 2 by driving a motor 5 is provided. The ratio / d of the average dimension of the minor axis portion of the blowout gap 2 ₁ of the blowout grill 2 and the thickness dimension d of the blowout grill 2 is set to 1,5 or more, and from the lower surface of the blowout grill 2 to the upper end of the guide vane 3. Floor outlet for air conditioning characterized in that the distance m to reach it is 50 mm or less.