WO2011155371A1

WO2011155371A1 - Airflow diffusion device (diffusion fan) and air conditioner

Info

Publication number: WO2011155371A1
Application number: PCT/JP2011/062578
Authority: WO
Inventors: 俊孝田中; 勇気田中
Original assignee: Tanaka Toshitaka; Tanaka Yuki
Priority date: 2010-06-07
Filing date: 2011-06-01
Publication date: 2011-12-15
Also published as: JP2013253776A; JP5377765B2; JP5915958B2; JP5711329B2; JPWO2011155371A1; JP2015111044A

Abstract

Provided is an airflow diffusion device (diffusion fan) which diffuses air current by means of the suction flow of an air conditioner. The airflow diffusion device is provided with: an impeller which comprises an air-current-receiving member for receiving air current sucked in through an air intake of an air conditioner, a diffusion member arranged at the outer circumferential side of the air-current-receiving member to diffuse air current blown out from an air vent of the air conditioner, and a hub member for supporting the air-current-receiving member and the diffusion member; a shaft member which constitutes a rotary shaft of the impeller; and an attachment member which supports the shaft member in a position in which the impeller is rotated by air current sucked in through the air intake of the air conditioner.

Description

Air diffusion device (diffusion fan) and air conditioner

[Description of related applications]
The present invention is based on the priority claim of Japanese patent application: Japanese Patent Application No. 2010-130389 (filed on June 7, 2010), the entire contents of which are incorporated herein by reference. Shall.
The present invention relates to an air conditioner (diffusion fan) that diffuses wind from an air conditioner (air conditioner), a blower duct, or the like, and an air conditioner including the device.

It is said that if it is in a position where the cold air from the air conditioner directly hits it, it will affect the balance of the body as well as the coolness. In addition to a timer function that operates the air conditioner intermittently and a plurality of wind direction adjustment plates inside the air outlet, etc. It is also common to have a function that can change the wind direction up, down, left and right at various time intervals. In addition, air conditioners with a fluctuation function that controls the volume and direction of the wind close to natural wind have been commercialized.

Patent Document 1 discloses an air flow diffusion device (diffusion fan) filed by the present applicant. The airflow diffusion device includes a blade member, a spoke member, and a hub member that supports the spoke member, and an impeller disposed so that wind from the air outlet of the air conditioner hits the rotation track of the blade member; The shaft member that constitutes the rotating shaft of the impeller and the suspension member that suspends the shaft member below the air conditioner are provided. According to the structure of this airflow diffusion device, the impeller rotates by the wind blown from the air outlet of the air conditioner, and the wind direction is intermittently changed by the blade member, so that the direct wind from the air conditioner It is possible to eliminate the uneven temperature in the room by intermittently blocking and scattering the air flow.

Patent Document 2 also discloses an air conditioner fan device having the same configuration as Patent Document 1. This fan device is also configured such that the impeller rotates by the wind blown from the air outlet of the air conditioner.

Patent Document 3 discloses an air conditioner provided with a movable mechanism capable of switching between a state in which a suction port (first ventilation port) of an air conditioner is closed and a state in which the suction port (first ventilation port) is opened. Is disclosed.

Japanese Patent No. 3717509 Japanese Patent No. 4436434 JP 2007-285604 A

Note that the entire disclosures of Patent Documents 1, 2, and 3 are incorporated herein by reference. The following analysis is given by the present invention.
As shown in FIGS. 2 and 3 of Patent Document 3, the ceiling-embedded air conditioner includes a blower fan in the casing, sucks air in the air-conditioned room from the suction port near the center of the bottom surface, and heats the interior. It is the structure which blows off the wind from the blower outlet arrange | positioned through the exchanger at the outer peripheral side of the bottom face.

In the airflow diffusion device (diffusion fan) or fan device of Patent Documents 1 and 2, there is a problem that the suction flow generated at the suction port near the center of the bottom surface of the air conditioner is not used for the rotation of the impeller.

In addition, the air outlet from the air conditioner is not circumferentially adapted to the impeller but is arranged in four directions or two directions. For example, as shown in FIG. The blade part which the wind which hits strongly hits and the blade part which the wind does not hit strongly are produced. In particular, when using an impeller having a small number of impeller members or an impeller having a large impeller member, the rotational torque generated in the impeller varies due to changes in the operating conditions of the air conditioner, resulting in uniform rotation. There may be situations where it is difficult to secure exercise.

As described above, in the air flow diffusion device (diffusion fan) or fan device configured to rotate only with the wind blown from the air conditioner outlet, the impeller is rotated only with the wind from the air outlet from the air conditioner. There is a design restriction caused by this.

The present invention has been made in view of the above circumstances, and the object of the present invention is to more efficiently utilize the energy of the wind generated by the blower fan in the air conditioner to diffuse the wind. An object is to provide an air flow diffusion device (diffusion fan) and an air conditioner including the device.

As a result of the research by the present inventor, it was found that the suction flow of the air conditioner can be used as the driving power of the impeller. The present invention is based on this finding.
That is, according to the first aspect of the present invention, the wind receiving member that receives the wind sucked into the air inlet of the air conditioner, and the wind that is disposed on the outer peripheral side of the wind receiving member and blows out from the air outlet of the air conditioner. An impeller comprising a diffusing member for diffusing air, a wind receiving member and a hub member for supporting the diffusing member, a shaft member constituting a rotating shaft of the impeller, and the impeller serving as an intake port of the air conditioner An airflow diffusing device (diffusion fan) is provided that includes an attachment member that supports the shaft member at a position rotated by the wind sucked into the air.

According to the second aspect of the present invention, there is provided an air conditioner including the above-described air flow diffusion device (diffusion fan).

According to the present invention, the number and shape of diffusion members (corresponding to “blade members” in Patent Document 1 and “fans” in Patent Document 2) for diffusing the wind blown from the air outlet of the air flow diffusion device (diffusion fan) It becomes possible to improve the degree. The reason is that a configuration is adopted in which the impeller rotates by using the wind sucked into the air inlet of the air flow diffusion device.

It is a figure showing the schematic structure of the airflow diffusion apparatus (diffusion fan) which concerns on one Embodiment of this invention. It is a top view of an impeller of an air current diffusion device (diffusion fan) concerning one embodiment of the present invention. It is a figure showing the attachment aspect of the diffusion member and wind receiving member of the airflow diffusion apparatus which concerns on one Embodiment of this invention. It is a figure for demonstrating the rotation principle of the impeller of the airflow diffusion apparatus (diffusion fan) which concerns on one Embodiment of this invention. It is another figure for demonstrating the rotation principle of the impeller of the airflow diffusion apparatus (diffusion fan) which concerns on one Embodiment of this invention. It is the figure showing another layout of the impeller of the airflow diffusion apparatus (diffusion fan) of this invention. It is the figure showing another layout of the impeller of the airflow diffusion apparatus (diffusion fan) of this invention. It is a figure for demonstrating the rotation principle of the impeller of FIG. It is a figure showing the structure of the deformation | transformation embodiment of this invention. It is a figure showing the structure of another deformation | transformation embodiment of this invention. It is the example which changed arrangement | positioning of the bearing plate in the airflow diffusion apparatus (diffusion fan) which concerns on one Embodiment of this invention. It is the figure showing another layout of the impeller of the airflow diffusion apparatus (diffusion fan) of this invention. It is a side view of the impeller of FIG. It is the figure showing another layout of the impeller of the airflow diffusion apparatus (diffusion fan) of this invention. It is the figure showing another layout of the impeller of the airflow diffusion apparatus (diffusion fan) of this invention. It is a figure for demonstrating the rotation principle of the impeller of FIG. It is the figure showing another layout of the impeller of the airflow diffusion apparatus (diffusion fan) of this invention. It is a figure for demonstrating the rotation principle of the impeller of FIG. It is a figure for demonstrating the structure which reduced the number of blade members of the impeller of the airflow diffusion apparatus (diffusion fan) of patent document 1. FIG.

First, the diffusion member disposed on the outer peripheral side of the impeller is configured by a blade-like member that generates torque in the same direction as the rotation direction of the impeller by wind blown from the air outlet of the air conditioner. A form is demonstrated in detail with reference to drawings.

FIG. 1 is a diagram showing a schematic configuration of an airflow diffusion device (diffusion fan) according to an embodiment of the present invention. Referring to FIG. 1, there is shown a configuration of an air flow diffusion device (diffusion fan) that includes a suspension mechanism 10, a vertical shaft 20, and an impeller, and is suspended from a grill portion of an air conditioner suction port 110. ing.

The suspension mechanism 10 includes a back plate, a pedestal plate, and bolts and nuts for connecting and fixing these two plates, and the impeller is sucked into the intake port of the air conditioner as an attachment member. The vertical shaft 20 is supported at a position rotated by the wind generated. The back plate is a member that is disposed on the back surface of the suction port of the air conditioner and hooks the entire apparatus on the suction port 110 of the air conditioner. The pedestal plate is a member that has a vertical shaft insertion portion in which a thread is formed, is disposed in front of the air inlet 110 of the air conditioner, and forms a pedestal to which the vertical shaft 20 is attached.

The vertical shaft 20 is supported at a predetermined position by the suspension mechanism 10 as a shaft member that constitutes the rotating shaft of the impeller. That is, the vertical shaft 20 is a member that defines the central axis of rotation of the impeller, and does not necessarily mean that the vertical shaft 20 itself rotates. Of course, as shown in FIG. 11, when the bearing plate 60 is disposed on the back side of the suspension mechanism 10, the vertical shaft 20 rotates.

The upper end of the vertical shaft 20 is formed with a thread that matches the thread of the vertical shaft insertion portion of the pedestal plate, and can be freely attached to and detached from the grill portion of the suction port 110 of any air conditioner in which the suspension mechanism 10 is installed. It has become. On the other hand, an impeller hub 50 and a bearing plate 60 are inserted into the lower end of the vertical shaft 20, and finally an end member 70 is fixed. The length of the vertical shaft 20 is sufficient as long as the impeller does not interfere with the ceiling surface and does not touch the human head (for example, 60 mm in combination with the grill lower side member of the suspension mechanism 10).

The bearing plate 60 is a ring-shaped member (bearing member) in which a large number of balls (steel balls, stainless balls, plastic balls) are embedded on the surface (upper surface), and the hub 50 starts to rotate quickly, and the rotation thereof. Can be held. Instead of the bearing plate 60, it is also possible to use a configuration in which various types of bearing members such as various types of thrust bearings (thrust ball bearings, thrust roller bearings) and a plurality of rollers are fitted to the vertical shaft 20.

Therefore, the airflow diffusion device (diffusion fan) of the present embodiment has a configuration in which the wind receiving member (inner peripheral blade member) 31 is added to the inside of the impeller of the airflow diffusion device (diffusion fan) of Patent Document 1. ing.

As shown in the plan view of FIG. 2, the impeller has a diffusion member (outer blade member) 30 and a wind receiving member (inner blade) on a spoke member 40 (two of which are shown) extending from the hub 50. Member) 31 is attached. In addition, it is preferable that the diffusing member (outer peripheral blade member) 30 and the wind receiving member (inner peripheral blade member) 31 are attached so that their positions and angles can be adjusted as described later.

In the impeller, the wind blown from the plurality of air outlets 100 of the air conditioner hits the rotation path of the diffusion member (outer peripheral blade member) 30 and the wind receiving member (inner peripheral blade member) 31 is air conditioned. It is arrange | positioned in the position (For example, the grill part center of the suction inlet 110 of an air conditioner) which receives the airflow sucked into the suction inlet of a machine. In addition, when it became the structure which can adjust the position and angle of the said diffusion member (outer peripheral side blade member) 30 and the wind receiving member (inner peripheral side blade member) 31, it installed in the inlet 110 of the air conditioner It is also possible to adjust the positions and angles of the diffusion member (outer peripheral blade member) 30 and the wind receiving member (inner peripheral blade member) 31 later.

FIG. 3 is a diagram showing an example of an attachment mode of the diffusion member and the wind receiving member of the airflow diffusion device described above. In the example of FIG. 3, spoke holding

structures

32, 33 are attached to the diffusing member (outer peripheral blade member) 30 and the wind receiving member (inner peripheral blade member) 31, and the

spoke holding structures

32, 33 are spokes. The members 40 can be inserted and fixed at arbitrary positions and angles, respectively. In addition, an angle adjusting plate 34 is inserted outside the spoke holding structure 32 on the blade tip side to adjust the attachment angle of the diffusing member (outer peripheral blade member) 30 to the initial set angle. The diameter of the impeller can be changed or the angle of each diffusion member (outer peripheral blade member) 30 can be changed by loosening the screws provided in the spoke holding structure 32 and rotating the angle adjusting plate 34 outward. Although it is possible, in the following description of the embodiment, it is assumed that these changes are not performed.

The spoke member 40 in FIG. 3 is constituted by a hollow pipe, and a wire having a crushed ball fixed to the end portion is built in the hollow interior portion. In the unlikely event that the spoke member 40 is broken, the wire plays a role in preventing the smashing balls from coming into contact with the spoke holding structure 32 and the diffusion member (outer peripheral blade member) 30 from falling off.

FIG. 4 is a diagram for explaining the rotation principle of the impeller of the above-described airflow diffusion device. The diffusion member (outer peripheral blade member) 30 is fixed, for example, at an angle α (or an angle −α if the rotation direction is opposite) with respect to the horizontal plane. On the other hand, the wind receiving member (inner peripheral blade member) 31 is fixed with respect to the horizontal plane at an angle −β (or an angle β if the rotation direction is opposite, or may be | β | = | α |). The fixed angles of the diffusion member (outer peripheral blade member) 30 and the wind receiving member (inner peripheral blade member) 31 are the shapes of the diffusion member (outer peripheral blade member) 30 and the wind receiving member (inner peripheral blade member) 31, etc. It is desirable to adjust appropriately according to.

In this way, when the operation of the air conditioner is started with the diffusion member (outer peripheral blade member) 30 and the wind receiving member (inner peripheral blade member) 31 adjusted and installed, the air inlet of the air conditioner is started. While the sucked airflow hits the wind receiving member (inner peripheral blade member) 31, the wind from the air blower hits the diffusion member (outer peripheral blade member) 30, and the impeller rotates as shown in FIG. The wind direction can be changed.

The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and further modifications, replacements, and replacements may be made without departing from the basic technical idea of the present invention. Adjustments can be made. A structure in which the base plate of the suspension mechanism 10 is integrated with the shaft member and a cover member that covers the shaft member can be added as appropriate.

For example, as shown in FIG. 6, it is also possible to adopt a configuration in which a diffusion member (outer peripheral blade member) 30 is attached to only a part of the spoke members. In this way, the weight of the entire apparatus can be reduced.

Further, for example, in the above-described embodiment, the diffusion member (outer peripheral blade member) 30 has been described as being attached with a shape and an angle that generate torque in the rotation direction of the impeller. However, as shown in FIG. A configuration in which the upper diffusion member (outer peripheral blade member) 30a is attached substantially horizontally can also be employed. In this case, as shown in FIG. 8, the diffusion member (outer peripheral blade member) 30a does not hinder the rotation of the impeller, and the wind receiving member (inner peripheral blade member) 31 is attached so that the impeller can rotate. It only has to be done. The shape of the diffusing member (outer blade member) 30a is not limited to the shape shown in FIG. 8, but the surface is uneven, or slits in the vertical or horizontal direction (impeller wheel radial direction or circumferential direction). It is possible to appropriately adopt a shape provided with.

Further, in order to prevent the airflow from flowing between the impeller and the air conditioner inlet and to facilitate the rotation of the impeller, as shown in FIG. 9, a cylindrical shape surrounding the outer periphery of the air conditioner inlet A configuration in which a wall (wall-like member) 120 is provided can also be employed. Such a wall part 120 may be integrally formed with the inlet grill of the air conditioner, or may be attached as an additional member (attachment) of the suspension mechanism 10 of the airflow diffusion device.

10, the wind receiving member (inner peripheral blade member) 31 is attached above the shaft 40, and the outer peripheral end 31b of the wind receiving member (inner peripheral blade member) 31 is upward (air-conditioning). It is also possible to adopt a configuration that is bent on the suction port side of the machine. Also with this configuration, since the airflow between the impeller and the air conditioner inlet can be prevented, the impeller can be easily rotated. Moreover, combining both the wall part 120 of FIG. 9 and the structure which bent the outer peripheral side edge part 31b of the wind receiving member (inner peripheral side blade | wing member) 31 of FIG. 10 upwards (at the inlet port side of an air conditioner). Is also possible.

Also, the sizes of the wind receiving member (inner peripheral blade member) 31 and the diffusing member (outer peripheral blade member) 30 can be appropriately changed according to the shape of these members. For example, as shown in FIG. 12, a layout in which the length of the wind receiving member (inner peripheral blade member) 31 in the radial direction is increased and the diffusion member (outer peripheral blade member) 30 is reduced can be employed. In general, as shown in FIG. 13, the circular radius L2 constituted by the wind receiving member (inner peripheral blade member) 31 is freely set within a range that is within the length L1 between the air outlets 100 of the air conditioner. can do. Of course, the circular radius comprised by the wind receiving member (inner peripheral blade member) 31 according to the wind direction of the blown air from the blower outlet 100 of the air conditioner, the installation position of the air flow diffusion device (distance from the ceiling), etc. A layout in which L2 exceeds the length L1 between the air outlets 100 of the air conditioner can also be adopted.

Further, instead of the wind receiving member (inner circumferential blade member) 31 and the diffusing member (outer circumferential blade member) 30, a layout in which the wind receiving portion 36 and the diffusing portion 35 are integrally formed on one blade member can be adopted. is there. For example, as shown in FIG. 14, the blade member is twisted to form the wind receiving portion 36 and the diffusing portion 35, and the wind receiving portion 36 receives the wind sucked into the air inlet of the air conditioner, and the diffusing portion 35 The layout of the impeller that diffuses the wind blown from the air outlet of the air conditioner can also be adopted.

Further, as shown in FIGS. 15 and 16, the end portions in the width direction (impeller circumferential direction) of the blade member are bent to form the flap-shaped wind receiving portion 36 and the diffusing portion 35. A layout of an impeller that receives wind sucked into the air inlet of the air conditioner and diffuses the wind blown from the air outlet of the air conditioner at the diffusion unit 35 can also be adopted. In addition, in the example of FIG. 16, although each edge part of the width direction (impeller circumferential direction) of a blade member is bent to the upper side of a figure, you may bend to the lower side of a figure. In this case, the impeller rotates in the opposite direction. In the example of FIG. 16, the blade member is cut in two places on both sides and bent alternately. It is also possible to adopt a layout in which the diffusion portion 35 is formed by bending the outer peripheral side downward (or upward).

Further, as shown in FIGS. 17 and 18, very simply, the outer peripheral side of the blade member fixed to the spoke member 40 at a predetermined angle is bent obliquely downward to form the diffusion portion 35, and the wind receiving portion 36. It is also possible to employ an impeller layout in which the wind sucked into the air inlet of the air conditioner is received and the wind blown out from the air outlet of the air conditioner is diffused by the diffusing unit 35.

In the frame of the entire disclosure (including claims and drawings) of the present invention, the embodiment or the embodiment can be changed or adjusted based on the basic technical idea. Various combinations and selections of various disclosed elements are possible within the scope of the claims of the present invention. That is, the present invention of course includes various variations and modifications that could be made by those skilled in the art according to the entire disclosure including the claims and the technical idea.

10 Suspension mechanism (mounting member)
20 Vertical shaft 30 Diffusion member (outer blade member)
31 Wind receiving member (inner blade member)
32, 33 Spoke holding structure 34 Angle adjustment plate
35 Diffusion part 36 Wind receiving part 40 Spoke member 50 Hub 60 Bearing plate 70 End member 100 Air outlet 110 Suction port 120 Wall part

Claims

A wind receiving member that receives wind sucked into the air intake of the air conditioner, a diffusion member that is disposed on the outer peripheral side of the air receiving member and diffuses the wind blown from the air outlet of the air conditioner, the wind receiving member and the diffusion An impeller comprising a hub member for supporting the member;
A shaft member constituting the rotating shaft of the impeller,
An attachment member that supports the shaft member at a position where the impeller rotates by wind sucked into an air inlet of the air conditioner;
Airflow diffusion device characterized by.
2. The air flow diffusing device according to claim 1, wherein the diffusing member is constituted by a blade-like member that generates torque in the same direction as the rotation direction of the impeller by wind blown from an air blower of an air conditioner.
2. The wind receiving member and the diffusing member are supported by a spoke member fixed to the hub member at a predetermined angle, and are movable on the spoke member according to the position of the air outlet of the air conditioner. Or 2 air flow diffusion devices.
The airflow diffusion device according to any one of claims 1 to 3, wherein pitch angles of the wind receiving member and the diffusion member are variable.
The air flow diffusing device according to any one of claims 1 to 4, wherein an outer peripheral side end of the wind receiving member is bent upward.
The airflow diffusing device according to any one of claims 1 to 5, further comprising a wall-like member that surrounds the outer side of the rotating track of the wind receiving member.
Instead of the wind receiving member and the diffusing member, the impeller receives a wind sucked into the air inlet of the air conditioner, and an air outlet of the air conditioner disposed on the outer peripheral side of the wind receiving member The airflow diffusion device according to any one of claims 1 to 6, further comprising a blade member integrally formed with a diffusion portion for diffusing the wind blown from the air.
The airflow diffusing device according to any one of claims 1 to 7, wherein a bearing member that supports a load of the impeller is fitted into the shaft member.
An air conditioner comprising the air flow diffusing device according to any one of claims 1 to 8.