JP2010065944A - Circulator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a circulator made thinner. <P>SOLUTION: The circulator 11 is equipped with: a casing 15 having an inlet port 13 in an upper end and an outlet 17 in a lower end and disposed such that a back face R faces a wall surface 100; and a cross flow fan 25 having a fan body 23 disposed in the casing 15 and a motor 27 driving the fan body 23. The fan body 23 has a plurality of blades 19, an outer diameter d is larger than an axial thickness t of a rotary shaft 21, and the rotary shaft 21 is disposed so as to face a direction substantially vertical to the back face R of the casing 15. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a circulator.

  In a room, warm air rises and cold air descends, so that a temperature difference between the ceiling and the floor is likely to occur. In particular, the temperature difference is likely to increase during cooling and heating by the air conditioner.

  In such a case, various circulators for reducing the temperature difference in the room by circulating the air in the room have been proposed. For example, the circulator described in Patent Document 1 includes a fan or the like for sucking air from the suction port and blowing it out from the blowout port in a casing having the suction port and the blowout port.

As this fan, a cross flow fan is often used because it is easy to increase the blowing width of air. The cross-flow fan has a cylindrical fan main body that is long in the axial direction of the rotation shaft and a motor that rotates the fan main body along a circumferential direction of a circle centered on the rotation shaft. ing. The fan body is arranged along the back surface of the casing so that the axial direction of the rotation shaft is parallel to the longitudinal direction of the suction port. Thereby, the blowing width of air can be enlarged.
Japanese Utility Model Publication No. 58-9707

  However, since it is necessary to increase the outer diameter of the fan body to some extent in order to ensure the air volume of the fan, there is a problem that the thickness of the circulator in the direction from the front side to the back side increases.

  Therefore, the present invention has been made in view of such a point, and an object of the present invention is to provide a circulator that can be thinned.

  The circulator of the present invention has a suction port (13) on one of the upper end side and the lower end side, and has a blower outlet (17) on the other side, and is arranged so that the back surface (R) faces the indoor wall surface. A cross flow fan (25) having a casing (15), a fan main body (23) disposed in the casing (15), and a motor (27) for driving the fan main body (23). Yes. The fan body (23) has a plurality of blades (19), an outer diameter (d) is larger than an axial thickness (t) of the rotating shaft (21), and the rotating shaft (21) is the casing. It is arranged so as to face in a direction substantially perpendicular to the back surface (R) of (15).

  In this configuration, a cross flow fan (25) having a fan body (23) having an outer diameter (d) larger than an axial thickness (t) of the rotation shaft (21) is used, and the rotation shaft of the fan body (23) is used. Since the fan body (23) is arranged in the casing (15) so that (21) is oriented in a direction substantially perpendicular to the back surface (R) of the casing (15), the thickness (t) of the circulator is conventionally set. Can be made smaller. Thereby, since the protrusion amount of the circulator from the wall surface in the room can be reduced, it becomes difficult to be restricted by the size and shape of the room to be installed, and the choices of the room that can be installed are expanded.

  The cross flow fan (25) is provided along a part of the outer periphery of the fan body (23), and an introduction region (31) through which air is introduced into the fan body (23) and the fan body (23). ) Provided along the outer periphery of the fan body (23) on the downstream side of the tongue member (35) and the tongue member (35) for dividing the discharge region (33) from which the air is discharged from the inside. It is preferable to further include a guide member (39) for guiding the air discharged from the region (33) to the outlet (17) side. In this configuration, air can be flowed more stably from the inlet (13) toward the outlet (17).

  It is preferable that the casing (15) has a height dimension from the lower part to the upper part of the wall surface, and the cross flow fan (25) is arranged near the upper end of the casing (15). In this configuration, since the cross flow fan (25) is disposed near the upper end of the casing (15), the driving sound of the cross flow fan (25) is difficult to reach the occupant and the room is kept quiet. Can do. In addition, since the amount of protrusion of the circulator from the wall surface in the room is small, even if the circulator is installed from the lower part to the upper part of the wall surface, it is difficult to become an obstacle.

  The casing (15) has a height dimension from the lower part to the upper part of the wall surface, and the cross flow fan (25) is disposed below the center of the casing (15) in the height direction. It is preferable. In this configuration, since the cross flow fan (25) is disposed below the center of the casing (15) in the height direction, the center of gravity of the circulator is located below, and the installation state of the circulator is more stable. Workability at the time of maintenance of the cross flow fan (25) is enhanced. In addition, since the amount of protrusion of the circulator from the wall surface in the room is small, even if the circulator is installed from the lower part to the upper part of the wall surface, it is difficult to become an obstacle.

  The motor (27) is preferably an outer rotor type. Since the outer rotor type motor (27) can be easily thinned, according to this configuration, the thickness (t) of the circulator can be further reduced.

  The axial thickness (t) of the fan body (23) is preferably smaller than 1/8 of the outer diameter (d). In this configuration, the air volume can be secured by increasing the outer diameter (d) while reducing the axial thickness (t).

  As described above, according to the present invention, the circulator can be thinned because the above-described cross flow fan is used and the fan body is disposed in the casing in a predetermined direction.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

  As shown in FIG. 1, the circulator 11 according to the present embodiment is a wall-hanging type that is attached to a wall surface 100 in a room. As shown in FIGS. 2 and 3, the circulator 11 has a suction port 13 at the lower end, a blowout port 17 at the upper end, and a hollow surface arranged so that the back surface R faces the wall surface 100 in the room. A casing 15 and a cross flow fan 25 disposed in the casing 15 are provided. The casing 15 has dimensions in the height direction from the lower part to the upper part of the wall surface 100. The cross flow fan 25 is disposed below the center of the casing 15 in the height direction.

  The cross flow fan 25 sucks room air from the suction port 13 and sends the air to the blowout port 17. Filters 18 for purifying air are respectively attached to the suction port 13 and the air outlet 17. The arrow of the dashed-dotted line of FIGS. 1-3 has shown the flow of air.

  As shown in FIG. 4, the cross flow fan 25 includes a fan main body 23 and a motor 27 that rotates the fan main body 23 around the rotation shaft 21. The fan body 23 has a disk-shaped flat plate portion 20 with one end of the shaft member 22 attached to the center thereof, and a plurality of blades 19 arranged along the periphery of the flat plate portion 20. These blades 19 have the same shape, and are inclined and arranged at substantially the same angle with respect to the radial direction of the flat plate portion 20. The shaft member 22 is disposed on the rotation shaft 21 of the fan body 23.

  The fan main body 23 is disposed in the casing 15 so that the rotation shaft 21 is oriented in a direction substantially perpendicular to the back surface R of the casing 15. That is, the flat plate portion 20 is substantially parallel to the back surface R of the casing 15.

  The outer diameter d of the fan body 23 is larger than the axial thickness t of the rotating shaft 21. The thickness t is preferably 1/2 or less, more preferably 1/5 or less, and even more preferably 1/8 or less of the outer diameter d.

  A conventional circulator has a cylindrical shape that is long in the axial direction of a rotating shaft, and has a fan body that is arranged along the back surface R of the casing so that the axial direction of the rotating shaft is parallel to the longitudinal direction of the suction port or outlet. I have. The outer diameter of the fan body is usually set to about 100 mm in order to secure the air volume. This external dimension prevents the circulator from being thinned. On the other hand, in the circulator 11 of this embodiment, the thickness t can be significantly smaller than the outer diameter d as described above. For example, the circulator can be thinned by reducing the thickness t to about 25 mm, and the air diameter can be secured by setting the outer diameter d to about 220 mm (in this case, the thickness t is equal to the outer diameter d). 1/8 or less).

  As shown in FIG. 4, the motor 27 is a thin outer rotor type and has a rotor 272 and a stator 271. The rotor 272 is formed of a resin containing minute magnet particles, and rotates around the rotation shaft 21 by a magnetic field generated by the stator 271. The rotor 272 includes a cylindrical portion 272a and a bottom portion 272b formed integrally with one end of the cylindrical portion 272a. The rotor 272 is joined to the flat plate portion 20 of the fan main body 23 at the bottom portion 272b. Specifically, the rotor 272 is fixed to the flat plate portion 20 of the fan main body 23 with caulking, screws, rivets, pins, or the like, or is bonded to the flat plate portion 20 of the fan main body 23 with an adhesive or the like.

  The stator 271 is for rotating the rotor 272, and includes an unillustrated iron core, coil, and the like that generate a magnetic field. The stator 271 is formed integrally with the columnar small-diameter portion 271a disposed inside the cylindrical portion 272a of the rotor 272, and the small-diameter portion 271a. And a large large-diameter portion 271b. A mounting member (not shown) is mounted on the large-diameter portion 271b, and the stator 271 is mounted on the casing 15 through the mounting member.

  The stator 271 is provided along the rotary shaft 21 and has a through-hole 275 into which the shaft member 22 is inserted. A bearing holder 274 is disposed on the inner peripheral surface of the through-hole 275 along the inner periphery. A bearing 273 is interposed between the bearing holding portion 274 and the shaft member 22. Thereby, the rotor 272 and the fan main body 23 are rotatably held with respect to the stator 271.

  As shown in FIGS. 2, 3, and 5, the casing 15 has a front surface F and a rear surface R that are substantially parallel, and the thickness direction (left-right direction in FIG. 2) is smaller than the width direction (left-right direction in FIG. 3). It has a flat interior space (flow passage). In this internal space, each fan main body 23 is arranged so that the radial direction is substantially parallel to the back surface R.

  As shown in FIG. 5, the cross flow fan 25 includes two tongue members 35 arranged along the outer periphery of the right side portion and the left side portion of the fan main body 23. These tongue members 35 are disposed across the space between the front surface F and the back surface R of the casing 15. A space along a part of the outer periphery of the fan main body 23 on the upstream side (lower side in FIG. 5) from the tongue member 35 becomes an introduction region 31 into which air is introduced into the fan main body 23, and is downstream of the tongue member 35. A space along the other part of the outer periphery of the fan main body 23 on the side (the upper side in FIG. 5) becomes a discharge region 33 from which air is discharged from the fan main body 23.

  The cross flow fan 25 has a guide member 39 provided along a part of the outer periphery of the fan main body 23 on the downstream side of the tongue member 35. The guide member 39 plays a role of stably guiding the air that passes through the inside of the fan main body 23 and is discharged from the discharge region 33 to the outlet 17 side.

  Next, the air flow in the circulator 11 will be described. When the cross flow fan 25 of the circulator 11 is driven, air is sucked into the casing 15 from the suction port 13 provided at the lower end of the casing 15, and the air advances upward and flows into the introduction region 31. The air flowing in from the introduction area 31 passes through the inside of the fan body 23, exits from the discharge area 33 to the outside of the fan body 23, and travels along the guide member 39. This air travels further upward in the casing 15 and is blown out into the room from an air outlet 17 provided at the upper end.

  As described above, the circulator according to the present embodiment has a hollow casing that has a suction port on one of the upper end side and the lower end side and a blower outlet on the other side, and is arranged so that the back surface R faces the wall surface of the room. And a cross flow fan having a fan main body disposed in the casing and a motor for driving the fan main body. The fan body has a plurality of blades, and has an outer diameter larger than an axial thickness of the rotating shaft, and is arranged so that the rotating shaft is oriented in a direction substantially perpendicular to the back surface R of the casing. Therefore, the thickness of the circulator can be made smaller than before. Thereby, since the protrusion amount of the circulator from the wall surface in the room can be reduced, it becomes difficult to be restricted by the size and shape of the room to be installed, and the choices of the room that can be installed are expanded.

  In the present embodiment, the cross flow fan is provided along a part of the outer periphery of the fan body, and the air is discharged from the introduction area where the air is introduced into the fan body and the fan body. A tongue member that divides the discharge region; and a guide member that is provided along the outer periphery of the fan body on the downstream side of the tongue member and guides the air discharged from the discharge region to the air outlet side. As a result, air can flow more stably from the inlet toward the outlet.

  In the present embodiment, the casing has a height dimension from the lower part to the upper part of the wall surface, and the cross flow fan is disposed below the center of the casing in the height direction. In addition, the center of gravity of the circulator is positioned below and the installation state of the circulator is more stable, and the workability when maintaining the cross flow fan is enhanced. In addition, since the amount of protrusion of the circulator from the wall surface in the room is small, even if the circulator is installed from the lower part to the upper part of the wall surface, it is difficult to become an obstacle.

  Moreover, in this embodiment, since the said motor is an outer rotor type | mold and it is easy to make it thin, the thickness of a circulator can be made still smaller.

  As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, A various change, improvement, etc. are possible in the range which does not deviate from the meaning. For example, in the above-described embodiment, the case where one crossflow fan is disposed in the casing has been described as an example, but the number of crossflow fans may be two or more. When two or more cross flow fans are disposed in the casing, these cross flow fans may be arranged in series along the air flow direction, or in parallel in a direction perpendicular to the air flow direction. You may arrange them.

  In the above-described embodiment, the case where the casing has a dimension in the height direction from the lower part to the upper part of the wall surface and the cross flow fan is arranged below the center in the height direction of the casing has been described as an example. However, the cross flow fan may be arranged near the upper end of the casing. In this embodiment, since the cross flow fan is disposed near the upper end of the casing, the driving sound of the cross flow fan is difficult to reach the occupant and the room can be kept quiet. In addition, since the amount of protrusion of the circulator from the wall surface in the room is small, even if the circulator is installed from the lower part to the upper part of the wall surface, it is difficult to become an obstacle.

  Moreover, you may shorten the dimension of the height direction of a casing, for example so that it may become the half or less of the height of a wall surface. In this form, the circulator becomes more compact and it is less likely to be restricted by the room in which it is installed.

  In the above embodiment, the case where the suction port is at the lower end side and the outlet is formed at the upper end side has been described as an example. However, the suction port may be formed at the upper end side and the outlet may be formed at the lower end side.

  In the above embodiment, the wall-mounted circulator attached to the wall surface of the room has been described as an example, but the circulator of the present invention has the longitudinal direction of the casing in the vertical direction of the wall surface and is spaced a little from the wall surface of the room. It can also be applied to the floor-mounted type.

It is a perspective view which shows the state which attached the circulator concerning one Embodiment of this invention indoors. It is the II-II sectional view taken on the line in FIG. It is a front view which shows the circulator concerning one Embodiment of this invention. It is sectional drawing which shows the fan main body and outer-rotor type motor in the circulator concerning one Embodiment of this invention. It is the schematic for demonstrating the flow of the air of the circumference | surroundings and the inside of the crossflow fan concerning one Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Circulator 13 Inlet 15 Casing 17 Outlet 19 Blade 21 Rotating shaft 23 Fan body 25 Cross flow fan 27 Motor 31 Introduction area 33 Discharge area 35 Tongue member 39 Guide member

Claims (6)

A hollow casing (15) having a suction port (13) on one of the upper end side and the lower end side and a blower outlet (17) on the other side, and arranged so that the back surface (R) faces the wall surface of the room;
It has a plurality of blades (19), the outer diameter (d) is larger than the axial thickness (t) of the rotating shaft (21), and the rotating shaft (21) is the rear surface (R) of the casing (15). ) Having a fan body (23) disposed in the casing (15) so as to face in a direction substantially perpendicular to the casing (15), and a motor (27) for driving the fan body (23) ( 25).   The cross flow fan (25) is provided along a part of the outer periphery of the fan body (23), and an introduction region (31) through which air is introduced into the fan body (23) and the fan body (23). ) Provided along the outer periphery of the fan body (23) on the downstream side of the tongue member (35) and the tongue member (35) for dividing the discharge region (33) from which the air is discharged from the inside. The circulator according to claim 1, further comprising a guide member (39) for guiding the air discharged from the region (33) to the outlet (17) side.   The said casing (15) has the dimension of the height direction from the lower part of the said wall surface to an upper part, The said cross flow fan (25) is arrange | positioned in the upper end vicinity of the said casing (15). The circulator described in 1.   The casing (15) has a height dimension from the lower part to the upper part of the wall surface, and the cross flow fan (25) is disposed below the center of the casing (15) in the height direction. The circulator according to claim 1 or 2.   The circulator according to any one of claims 1 to 4, wherein the motor (27) is of an outer rotor type.   The circulator according to any one of claims 1 to 5, wherein a thickness (t) of the fan body (23) in the axial direction is smaller than 1/8 of the outer diameter (d).

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