Air adjustment tool

Abstract

To provide an air adjustment tool for an air conditioner that is installed on a ceiling and blows conditioned air in all four directions, which can control an airflow to achieve more energy saving.SOLUTION: An air adjustment tool 3 for an air conditioner 20 that is installed on a ceiling and blows conditioned air in all four directions, is formed so as to be arranged at a center of an air intake port of the air conditioner 20. The air adjustment tool has a circular or regular polygonal shape with a center axis S (normal line H) at the center of the air intake port of the air conditioner 20, and has a through hole 33 formed therein.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to an air conditioning device for an air conditioner that is installed on a ceiling and blows conditioned air in all four directions. [Background technology]

[0002] Patent Document 1 discloses a technique for an airflow control device that is an energy-saving member. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2018-105130 Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention provides an air conditioning device for an air conditioner that is installed on a ceiling and blows conditioned air in all four directions, which can achieve energy savings by controlling the flow of air. [Means for solving the problem]

[0005] The air conditioning device in a first aspect of the present invention is an air conditioning device for an air conditioner that is installed on a ceiling and sends conditioned air in all four directions, and is configured to be placed at the center of the air intake of the air conditioner, has a circular or regular polygonal shape with the center of the air intake of the air conditioner as its central axis, and has a through hole formed therein.

[0006] Preferably, the airflow adjustment tool has a plurality of through holes formed therein.

[0007] Preferably, at least 70% or more of the plurality of through holes are arranged symmetrically with respect to the central axis.

[0008] Preferably, at least 70% or more of the plurality of through holes are arranged symmetrically with respect to a plane including the central axis. Effect of the Invention

[0009] The air conditioning device of the present invention makes it possible to provide an air conditioning device that can achieve energy savings. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is an explanatory diagram showing a state of an air conditioner to which an air conditioning device according to a first embodiment of the present invention is attached. [Diagram 2] FIG. 2 is an explanatory diagram of a wind control device in the first embodiment. [Diagram 3] FIG. 11 is an explanatory diagram of a wind control device in the second embodiment. [Figure 4] FIG. 11 is an explanatory diagram of a wind control device in the third embodiment. [Diagram 5] FIG. 13 is an explanatory diagram of a wind control device in the fourth embodiment. [Figure 6] FIG. 13 is an explanatory diagram of a wind control device in the fifth embodiment. [Figure 7] FIG. 13 is an explanatory diagram of a wind control device in the sixth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] <First embodiment> FIG. 1 is an explanatory diagram showing a state of an air conditioner 20 equipped with an air conditioning device 3 according to a first embodiment of the present invention. FIG. 1 is an explanatory cutaway view of an air conditioner 20. As shown in FIG.

[0012] As shown in FIG. 1, the air conditioner 20 is a ceiling-embedded indoor unit. In other words, the air conditioner 20 (indoor unit) is installed on the ceiling and blows conditioned air in all directions. And, since this air conditioner 20 is generally placed on the ceiling near the center of the room, even in a cross section perpendicular to the cross section of FIG. 1, it has almost the same structure as that of FIG. Therefore, this air conditioner 20 is capable of blowing substantially the same conditioned air in four directions. Of course, it is possible to limit the direction of air conditioning to one, two, or three directions by various settings (blocking the wind, directing the wind, controlling the rotation of the fan 23, etc.). A main body 21 of this air conditioner 20 (indoor unit) is embedded in the ceiling 11, and is equipped therein with a motor 22 and a fan 23 that is rotated by the motor 22. As the fan 23 rotates, air is sucked in from the lower room through the intake port 12 at the bottom center of the main body 21, introduced into the heat exchanger 4 on the outer periphery for heat exchange, and returned to the room through the exhaust port 13 on the outer periphery. Here, a grill 1 and a filter 2 are fitted into the air intake 12 in this order from below, and an airflow adjuster 3 is further arranged above them so as to cross the air flow path leading to the heat exchanger 4. As shown in FIG. 1, the center of the air intake of the air conditioner 20 is defined as a central axis S.

[0013] By arranging in this manner, the sucked air can pass through the airflow adjustment device 3 arranged between the heat exchanger 4 and the air conditioner 3 . The effect of this airflow adjustment device 3 will be described. This airflow adjustment device 3 is located on the suction side of the fan 23 . Therefore, the flow path resistance increases accordingly. However, the air that is drawn into the air conditioner 20 is air, and generally, a large amount of air is not drawn at a high flow rate. Therefore, the flow path resistance does not contribute significantly. On the other hand, the applicant discovered that in the case of ceiling-embedded air conditioner 20, for example, near area 101 in Fig. 1, the air does not flow well, swirling around in a circular fashion and causing the airflow to stagnate. (Note that this phenomenon has also been verified by numerical simulations, etc., and hereinafter this phenomenon will be referred to as "short circuiting.") When this short circuit occurs, the amount of air that the air conditioner 20 can blow is reduced, which has an effect as resistance. In order to reduce the occurrence of such a short circuit, a wind adjustment tool 3 is used. In principle, the airflow control device 3 disturbs (makes the air turbulent) the airflow, thereby forming a rotational component in the airflow and slowing down the airflow speed, thereby reducing this short circuit. On the other hand, simply making the air flow turbulent may increase flow resistance or reduce the efficiency of the air conditioner 20. In addition, the air conditioning performance of the air conditioner 20 may become uneven depending on the direction, the air may not come out in a fixed direction (weak air), or conversely, the air may become too strong. Therefore, in the present invention, turbulence is generated "within a controlled range (without becoming too irregular)". The regularization of the shape of the airflow control device 3 (circle, polygon) and the regularization of the multiple through holes 33 (line symmetry, point symmetry), which will be described later, bring about turbulence in the "controlled" range. Also, the axis (normal line H) of the air conditioning device 3 and the axis (central axis S) of the air conditioner 20 are aligned, which is an expression of the idea of ​​creating turbulence within a controlled range. On the other hand, since some degree of disturbance has almost no effect due to turbulence, it does not matter if there are unformed portions 35 as described later. The airflow control device 3 will be described below.

[0014] <First embodiment> FIG. 2 is an explanatory diagram of the air flow control device 3 in the first embodiment.

[0015] As shown in FIG. 2, the airflow control tool 3 (airflow control tool main body 31) has a plate-like shape of a regular hexagon. The airflow control device 3 has an airflow control device main body 31, a through hole 33, and a mounting hole . A plurality of through holes 33 are formed in the airflow control device main body 31. Specifically, in the example of Fig. 2, 34 holes are formed. The intake air to the air conditioner 20 passes through this through hole 33. Therefore, in terms of flow path resistance alone, it is better for the flow path to be formed as large as possible. On the other hand, in order to prevent shows and circuits, which is the object of the present invention, it is necessary to make the wind flow turbulent. In this embodiment, although a plurality of relatively large through holes 33 are provided, these through holes can disrupt (disturb) the flow of air (to create turbulence).

[0016] Furthermore, two mounting holes 34 are formed in the airflow control device main body 31 at diagonal positions (line symmetry, point symmetry). Here, there are multiple through holes 33 formed in the air conditioning device main body 31, and all of them are formed in positions that are symmetrical with respect to a line (in one example, the line represented by A in Figure 2) formed on the plane of the air conditioning device main body 31 (when viewed from above the normal H (central axis S, omitted below) of this plane, it appears to be a regular hexagon, and the axis direction of the through holes 33 and the mounting holes 34 is parallel to this normal line H (center line, axis)). In addition, since the airflow control device 3 (airflow control device main body 31) is disposed at the center of the central axis S of the air conditioner 20, the normal line H is coaxial with the central axis S (see also FIG. 1). Furthermore, there are multiple lines that serve as the basis for this linear symmetry, not just line A in Figure 2. In addition, in the example of FIG. 2, if the position where the normal line H intersects with the airflow control device main body 31 is taken as point O, it can be said that the through holes 33 are formed symmetrically with respect to that point. In the above example, all of the through holes 33 were formed with point symmetry and line symmetry, but as will be described later, if at least 70% of the through holes are either point symmetric or line symmetric, the same effect as in this embodiment can be achieved. If the degree of point symmetry or line symmetry is too low, not only will turbulence occur, but the turbulent flow will also become too irregular. Moreover, it is desirable that the combined area of ​​all the through holes 33 (area through which air passes) is 70% or more of the area of ​​the airflow control device main body 31. On the other hand, if the combined area of ​​all the through holes 33 (area through which the wind passes) is too large relative to the wind control device main body 31, it becomes difficult to create turbulent airflow, so it is desirable for it to be around 90%.

[0017] <Second embodiment> FIG. 3 is an explanatory diagram of the air flow control device 3 in the second embodiment.

[0018] The second embodiment in FIG. 3 differs from the first embodiment in that the shape is a regular octagon instead of a regular hexagon. Other points are the same and therefore will not be described.

[0019] <Third embodiment> FIG. 4 is an explanatory diagram of the air flow control device 3 in the third embodiment.

[0020] The third embodiment in FIG. 4 differs from the second embodiment in that there is an unformed portion 35 where no through-hole 33 is present. This is to explain that, as noted in the first embodiment, all of the through holes 33 do not necessarily need to be formed 100% line-symmetric or point-symmetric. In this way, if 70% or more of the plurality of through holes 33 are formed in line-symmetric or point-symmetric positions, a certain effect (generation of turbulence) can be achieved. In addition, the non-formed portion 35 may be formed with, for example, an emblem, a product number, or the like. Also, the number of mounting holes 34 can be one as shown in FIG. 4 (on the other hand, it is also possible to have three or more mounting holes. It is sufficient to design it to match the air conditioner 20 to which it is to be attached). Neither the mounting hole 34 nor FIG. 4 need to be point-symmetric or line-symmetric.

[0021] <Fourth embodiment> FIG. 5 is an explanatory diagram of the air flow control device 3 in the fourth embodiment.

[0022] The fourth embodiment in FIG. 5 differs from the first embodiment in that it has a disk shape.

[0023] <Fifth embodiment> FIG. 6 is an explanatory diagram of the air flow control device 3 in the fifth embodiment.

[0024] The fifth embodiment in FIG. 6 differs from the fourth embodiment in that there is an unformed portion 35 where no through-hole 33 is present. Other points are similar to those of the third embodiment shown in FIG.

[0025] Sixth embodiment FIG. 7 is an explanatory diagram of the air flow control device 3 in the sixth embodiment.

[0026] As shown in FIG. 7, a rectangle or the like may also be used.

[0027] <Configuration and Effects of the Embodiment> The air conditioning device 3 is an air conditioning device 3 for an air conditioner 20 that is installed on the ceiling and sends conditioned air in all four directions, and is formed to be placed at the center of the air intake of the air conditioner 20. It has a circular or regular polygonal shape with the center of the air intake of the air conditioner 20 as the central axis S (normal line H), and has a through hole 33 formed therein. With this configuration, it is possible to provide a ventilation device that can achieve energy savings.

[0028] The airflow adjustment tool 3 has a plurality of through holes 33 formed therein. With this configuration, it is possible to create turbulence that prevents short circuiting to a controlled extent.

[0029] At least 70% or more of the plurality of through holes 33 are arranged symmetrically with respect to the central axis S (normal line H). With this configuration, it is possible to create turbulence that prevents short circuiting to a controlled extent.

[0030] At least 70% or more of the plurality of through holes 33 are arranged symmetrically with respect to a plane including the central axis S (normal line H). With this configuration, it is possible to create turbulence that prevents short circuiting to a controlled extent.

[0031] The structure, materials, connections of the various members, chemical substances, and the like of the present invention can be modified in various ways without departing from the spirit and scope of the present invention. The material can be freely selected from metal, plastic, FRP, wood, concrete, etc. For example, it is possible to combine two or more components into one, or conversely, it is possible to configure one component from two or more separate components and connect them together. Furthermore, the above embodiment is merely one of the best modes currently available. [Explanation of symbols]

[0032] 1. Grill 2. Filters 3 Wind adjuster 4 Heat exchanger 20 Air conditioner 21 Main unit 22 Motor 23 Fan 31 Air flow adjustment device body 33 Through hole 34 Mounting holes 35 Unformed part 101 Short circuit area H normal S center axis

Claims

1. A ventilation device for an air conditioner that is installed on a ceiling and blows conditioned air in all four directions, The air conditioner is configured to be disposed at the center of the air intake of the air conditioner, The air conditioner has a circular or regular polygonal shape with the center of the air intake of the air conditioner as a central axis, Through holes are formed Wind adjuster.

2. The airflow adjustment tool has a plurality of through holes formed therein. The air conditioning device according to claim 1.

3. At least 70% of the plurality of through holes are arranged symmetrically with respect to the central axis. The air conditioning device according to claim 2.

4. At least 70% of the plurality of through holes are arranged symmetrically with respect to a plane including the central axis. The air conditioning device according to claim 2.

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