JP2001065491A - Air blower, air conditiner, and air supplying method of the air blower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save electric power, increase a wind quantity, and reduce nhoise by arranging a box body having a suction space part between a suction port and a propeller fan, and a wind passage for blowing air oiut from a centrifugal diffuser wind passage to an inside of a room, and arranging a wind passage which is crossed with a blow-out wind passage and which is communicated with the suction space part from an outside of the box body. SOLUTION: When a propeller fan 2 is rotationally driven, air in the room is sucked from a suction opening part 14a of a decorative grill 14, and it is also sucked from a duct flange 13 since a suction duct 12 is communicated with a suction space part 41. Air sucked from the suction space part 41 by the propeller fan 2 receives force toward an axial direction and the diameter direction by rotation of the propeller fan 2, and it flows by converting speed energy of flow from the axial direction toward the diameter direction into static pressure by a fan casing 5, a second wind path member 4, and a first wind path member 3. Namely, flow is changed to 90 degrees by the centrifugal diffuser wind path 9 so as to increase static pressure. It is thus possible to increase a wind quantity of the propeller fan 2, it is possible to reduce noise, and it is also possible to improve an efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blower technology using a propeller fan to obtain low-power, large-volume, low-noise air, and an apparatus using the same.

[0002]

2. Description of the Related Art A conventional blower of a type embedded in a ceiling is disclosed in, for example, Japanese Patent Application Laid-Open No. 11-13683. FIG. 12 shows a configuration of a conventional blower. Reference numeral 101 denotes a box-shaped main body having an opening on one side and having a built-in cross flow vane 107.
2 is a ceiling suspension bolt 10 provided on the side of the box-shaped main body 101.
The main body fixing bracket 106 fixed to the slab or the like by 3 is fixed to the box-shaped main body 101, the suction air passage 108, the suction port 10
6a, fan casing forming the outlet 106b, 1
A decorative grille 05 covers the opening of the box-shaped main body 101 attached to the ceiling surface 104. The inlet 106a and the outlet 106b of the fan casing 106 are at target positions on the rotation axis, and both the suction flow and the blowout flow are always present in the cross flow vane 107.

In the configuration shown in FIG. 12, a centrifugal fan called a cross-flow blade 107 uses a circular blade that is long in the axial direction and blows a wide wind in the rotation axis direction. Can change the wind direction. FIG. 13 shows an explanatory diagram in which the direction of the wind is changed by rotating the fan casing of the blower. The changed wind blows a small amount of wind from the makeup grill 105 in a desired direction at a high wind speed.

[0004] As a conventional ceiling-mounted type blower, a technique described in, for example, JP-A-6-2695 is known. FIG.
4 shows a configuration of a conventional blower, 111 is a propeller fan protected by a fan guard 112 and driven by a motor 110, 113 is a motor fixing part fixed to a ceiling surface 114, 32 is a ventilation fan, and 109 is a floor surface. is there. The ceiling fan is rotated by a drive motor to blow air, and is mounted on the ceiling surface so that the axial direction of the rotation axis of the drive motor can be changed by a motor fixing part. The wind direction of the propeller fan 111 used in such a ceiling fan is sucked from the suction space 115 on the ceiling surface side, and blows a wind having a low wind speed and a large air volume just below in almost the opposite direction.

FIG. 15 shows a construction for improving the performance of a propeller fan by the technique disclosed in Japanese Utility Model Publication No. 63-10413. In the drawing, reference numeral 51 denotes a propeller fan which is driven to rotate by a drive motor 52; 53, a fan casing for guiding wind from a suction grill 54; 57, a first air passage member 5;
A centrifugal diffuser air passage surrounded by both surfaces of the fifth air passage member 56 and the second air passage member 56, a heat absorbing / heating body 58, and a curved flow passage 59. The speed energy of the propeller fan is converted to static pressure from the blow-out end of the fan using the centrifugal diffuser air path, and an air conditioner with low noise and high performance is obtained by using a heat absorbing / heating element with a large air path resistance as a rectifier. Things.

[0006]

In a device using a centrifugal fan called a cross flow blade 107, the suction flow and the discharge flow change every 180 °, and only half of the circumference of the blade is working, and the fan efficiency is 30%. And the suction port is located at the back of the main body 101, and the suction air passage 108 must be provided in the left and right direction of the fan casing. Even if the outer diameter of the blade can be reduced, the overall width and depth dimensions are reduced. Therefore, miniaturization was difficult. Furthermore, in this fan, the outlet flow is narrow because the outlet is narrow and long in the axial direction.
The wind speed is fast, but the air volume is small and the person directly below feels uncomfortable. When trying to secure the air volume, the wind speed becomes higher and the dust on the floor surface is raised and the problem of the rebounding wind is caused. The direction of the wind can be changed by rotating the fork casing, but the structure therefor is complicated, and there is a problem that the air is locally blown out and the ability to circulate the conditioned air is low.

When the ceiling fan is directly mounted on the ceiling, the position of the propeller fan is lowered due to the need for a suction space on the ceiling surface. there was a problem that could touch the wings. In addition, the air volume is large, but the wind speed is slow, so it does not reach far away and the circulation of the conditioned air is only near, and conversely, people near the wind feel the unpleasant wind noise passing through the wire type fan guard, Since the distance between the person directly below and the outlet of the propeller fan is very small, there is a problem that the user feels uncomfortable by feeling of pressure.

Further, the propeller fan using the centrifugal diffuser air path has a problem that the wind speed is low, and there is a problem that a practical device utilizing the air flow cannot be obtained.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a practical device that uses a propeller fan to obtain a low-power, large-volume, low-noise circulating wind. Another object of the present invention is to obtain a device and a blowing method that are efficient and easy to use. It is another object of the present invention to provide a device which is thin, easy to use anywhere, and easy to combine with other models.

[0010]

According to a first aspect of the present invention, there is provided a blower having a centrifugal diffuser air passage between a substantially parallel surface extending from a discharge side end of a propeller fan to an outer peripheral side. Having a suction port facing the air inlet and a suction space between the suction port and the propeller fan, and a blow-out air path for blowing air from a centrifugal diffuser air path provided in the box body toward the indoor side. When,
And a communication air passage that is provided to intersect with the blow air passage and communicates with the suction space from outside the box.

According to a second aspect of the present invention, there is provided an air blower comprising: an inner box for sucking air from a suction port by rotation of a propeller fan; an outer box for supporting and covering the inner box and holding the propeller fan; A centrifugal diffuser air passage that has a discharge air path between substantially parallel surfaces extending from the discharge side end of the propeller fan to the outer periphery between the body and the outer box, and an air intake side from the centrifugal diffuser air path And a communicating air passage penetrating from the outside of the outer box to the suction space of the propeller fan inside the inner box. .

According to a third aspect of the present invention, there is provided a blower fan which is rotatably driven by a drive motor to suck air from a suction port into a suction space in a box body, and a flat surface extending from a discharge side end of the propeller fan to an outer peripheral side. A first air path member for holding a propeller fan, and a centrifugal diffuser for flowing air discharged from the propeller fan between the first air path member and the first air path member surrounding the first air path member. A second air path member that forms the air path, a suction air space that guides air discharged from the centrifugal diffuser air path to the suction port side, and a blow air path separated from the outside of the box body, And a communicating air passage which intersects with the suction space and sucks air.

According to a fourth aspect of the present invention, there is provided an air blower, wherein an inner box for sucking air from a suction port by rotation of a propeller fan, an outer box for supporting and covering the inner box and for internally holding the propeller fan; A centrifugal diffuser air path with a discharge air path between substantially parallel surfaces extending from the discharge side end of the propeller fan to the outer peripheral side between the box body and the outer box body, and blowing air from the centrifugal diffuser air path It has an outlet facing substantially the same surface as the suction port, and a mounting portion provided on a surface of the outer box opposing the outlet, and capable of mounting the box on a ceiling surface or a wall surface. .

A blower according to a fifth aspect of the present invention is a propeller fan which is driven to rotate by a drive motor housed in a box and sucks air from a suction port into the box. A first air path member that forms the back surface of the propeller fan and holds the propeller fan, and air discharged from the propeller fan between the first air path member surrounding the propeller fan inside the first air path member. A second air path member forming a flowing centrifugal diffuser air path, a suction air space that guides air discharged from the centrifugal diffuser air path to the suction port side, and an outlet air path separated from the first air path of the box. And a mounting portion provided on the rear surface on the side of the air passage member or on the side surface on the outer side of the blow-out air passage so that the mounting direction of the box body can be changed to an external engagement portion.

The suction port of the blower according to claim 6 is provided at the center of the box close to the suction portion of the propeller fan, and a plurality of outlets are provided at target positions on the outer peripheral side of the box.

According to a seventh aspect of the present invention, the blower air passage is provided on the outer peripheral portion of the box, and the outlet is partially closed by a decorative grill attached to the blower air passage.

The makeup grill of the blower according to the present invention is such that the mounting direction is changed so that the position of the outlet and the blowing direction can be changed.

In a ninth aspect of the present invention, the box body is formed in a square or cylindrical shape, and the decorative grill for closing substantially half of the outlet air passage is mounted so that the position and outlet direction of the outlet can be changed.

According to a tenth aspect of the present invention, in the blower according to the first aspect of the present invention, the blower or the centrifugal diffuser has a second path from the air path to the outlet.
Is provided.

In the blower according to the present invention, the blow-out air passage is provided on an outer peripheral portion of the box, and the blow-out outlet is provided with a continuous air passage or a second air passage.
Are provided at target positions where there is no outlet air path.

According to a twelfth aspect of the present invention, in the blower, a plurality of ventilation circuits each including a propeller fan and a centrifugal diffuser air path are arranged in parallel, and the second outlet communicates with the air path between one centrifugal diffuser air path and the air outlet. The air passage is connected to a communication air passage communicating with a suction space in which another propeller fan sucks air, and a plurality of ventilation circuits arranged in parallel are connected to each other.

According to a thirteenth aspect of the present invention, the communication air path that communicates the outside of the box and the suction space portion takes outside air or air that has been conditioned such as cooling or heating into the box.

The air blower according to claim 14 is a temperature control means for performing temperature control on air by absorbing or generating heat in an air flow path between a blow air path or a centrifugal diffuser air path and an air outlet or in a suction space of a propeller fan. Is provided.

According to a fifteenth aspect of the present invention, the partitioning portion for partitioning the suction space of the propeller fan and the blow-out air passage is formed by foaming.

According to a sixteenth aspect of the present invention, at least one of a centrifugal diffuser air passage and a communication air passage such as a second air passage member is provided.
One is integrally formed of a foam material together with a partition portion.

According to a seventeenth aspect of the present invention, there is provided a blower provided with wind direction means capable of changing the direction of the wind blown to the outlet.

The blower according to claim 18 has an opening / closing damper for opening / closing the air path in at least one of the blow air path, the communication air path, and the second blow air path.

A blower according to a nineteenth aspect of the present invention provides a propeller fan which is rotated and driven by a built-in drive motor to suck air into the box from a suction port on the indoor side, and a fan which spreads from the discharge side end of the propeller fan to the outer peripheral side. A first air passage member forming a back surface of the body and holding a propeller fan;
A second air path member that forms a centrifugal diffuser air path that flows air discharged from the propeller fan between the first air path member and the outer circumference by surrounding the propeller fan inside the air path member; A suction space that guides air discharged from the centrifugal diffuser air passage to the indoor side, and a blow air passage that is partitioned by an inner surface of the main body and disposed on an outer peripheral side;
The air path member and the inner surface of the main body are integrally formed from a foam material.

According to a twentieth aspect of the present invention, there is provided an air conditioner, wherein a centrifugal diffuser air passage through which air discharged from the propeller fan flows between substantially parallel surfaces extending outward from the discharge side end of the propeller fan, and a centrifugal diffuser air passage. A box having a suction port for sucking air from the room and a suction space between the suction port and the propeller fan, and a blowout port for blowing air from a centrifugal diffuser air passage provided in the box into the room. A blowing air passage having a blowing duct, a blowing duct provided in the blowing air passage and blowing air to the outside of the box different from the outlet, and communicating with the suction space from the outside of the box to the outside of the box different from the suction port. It has a communication duct for sucking air, air blowing means arranged outside the box to blow air, and air conditioning means for air temperature or humidity conditioning, and is in contact with at least one of the blowing duct and the communication duct. And the air conditioning unit that is, those having a.

In the air conditioner of the present invention, a plurality of boxes are arranged, or a plurality of ventilation circuits including a propeller fan and a centrifugal diffuser are arranged, and one of the outlet ducts is connected to the other communication duct. Then, a box or a ventilation circuit is connected.

In the air conditioner of the present invention, a plurality of communication ducts or blow-off ducts are connected to the air conditioning means.

According to a twenty-third aspect of the present invention, there is provided a blowing method for a blower, wherein air blown from a blowing means is sucked into a propeller fan, and air discharged from the propeller fan through a centrifugal diffuser provided at a discharge end portion of the propeller fan. And a step of sucking a part of the air discharged from the propeller fan into the blowing means or another blowing means.

[0033]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side sectional view of a circulating blower according to an embodiment of the present invention. Reference numeral 2 denotes a propeller fan fixed by a blade mounting nut 42 so as to blow air driven by a drive motor 1 to suck and blow air. 3 is larger than the outer diameter of the propeller fan 2,
A first air path member that supports the fixed side of the drive motor provided on the blow-out side of the fan perpendicularly to the rotation axis of the drive motor 1 and forms an outer shell on the back side of the box-shaped main body 8, and 6 is a box-shaped The outer side surface of the main body 8 which forms the outer shell on the side surface of the main body 8 and forms the outer shell box shape with the first air path member 3, and the first air path member 3 is provided inside the box type main body 8. The centrifugal diffuser air passage 9 is provided opposite to the first air passage member 3 and provided from the fan outlet side end of the fan casing 5 of the propeller fan 2.
A second air passage member 41, a suction space portion that forms an inner box shape with the second air passage member 4 and the main body inner side surface 7 and sucks air to the propeller fan 2 provided therein; Reference numeral 10 denotes an outlet air passage which is formed between the main body outer surface 6 of the box-shaped main body 8 and the inner main body inner surface 7 and is connected to the centrifugal diffuser air passage 9.

An intake duct 13 is provided with an opening at a part of the outer surface 6 of the main body, and is also opened at the inner side 7 of the main body opposite to this opening, and communicates with the suction space 41 to suck air from outside.
Reference numeral 17 denotes a duct flange which is opened at a part of the outer surface 6 of the main body and communicates with the blow-out air passage 10 and can be connected to the ventilation duct 16, reference numeral 14 denotes a decorative grille, and reference numeral 15 denotes a ceiling plate. The decorative grille 14 is provided so as to cover an opening of the box-shaped main body 8 facing the room, and a suction space 41 serving as a suction passage of the propeller fan 2 housed in the main body inner side surface 7.
A suction opening 14a is provided on a surface facing the air outlet 10, and a blow opening 14b is provided on a surface facing the blow air passage 10 located in the space between the main body outer surface 6 and the main body inner surface 7. Here, a part of the outlet air passage 10 is closed by the decorative grill 14.
The box-shaped main body 8 is attached by a main body mounting flange 8a provided on an outer peripheral portion of an opening on the indoor side of the main body outer side surface 6 by using the ceiling plate 1.
5 is attached to the opening.

When the propeller fan 2 is driven to rotate, room air is sucked through the suction opening 14a of the decorative grill 14 and the duct flange 1 to which the intake duct 12 is connected.
3 also communicates with the suction space 41 so that it is sucked in the same way. The air sucked from the suction space 41 by the propeller fan 2 receives the axial and radial forces due to the rotation of the propeller fan, and the fan casing 5,
The second wind path member 4 and the first wind path member 3 can convert the velocity energy of the flow from the axial direction to the radial direction into static pressure without wasting the flow, and flow the flow. That is, the flow is changed by 90 ° by the centrifugal diffuser air passage 9 while taking advantage of the large air volume, low noise, and high efficiency of the propeller fan, and the pressure (static pressure) is compared with that of the conventional propeller fan in the axial direction. ) Can be raised. In addition, the propeller fan has a simpler and lighter blade shape than other blades such as a sirocco fan, which is a centrifugal fan, and does not require a complicated fan casing. It is small and can obtain the air volume.

Further, the centrifugal diffuser air passage 9 is larger than the outer diameter of the fan in the centrifugal direction, and the ventilation area is gradually enlarged, so that the flow of the air is smoothly formed in a box shape between the inner box and the outer shell. The air is bent 90 ° in the outlet air passage 10 provided on the entire outer peripheral portion of the main body 8, so that the suction air turns 180 ° from the first suction and eventually blows in the direction opposite to the suction direction. The box may be square, circular or elliptical, but requires a centrifugal diffuser air passage 9 larger than the outside diameter of the fan to ensure ventilation characteristics. Furthermore, in this structure, in addition to the air suction from the suction opening 14a, for example, fresh outside air from the outside can be sucked from the suction duct 12 or air can be sucked from other places in the room. The intake duct 12 is connected to the suction space 4 via a duct flange 13.
1, and the air can be blown by utilizing the capacity of the propeller fan without being limited to the amount of suction air from the suction opening 14a. For example, the blowing opening 14b is
4 does not affect the performance of the fan even if the suction from the center is affected by the blow-out and exists on the entire outer circumference of the fan. Note that the heat absorbing / heating element 2 is
By providing 2, it is possible to apply a change in temperature to the flow of the air to be blown out to give a necessary temperature control. By providing the duct flange 13 which is a communication duct, the capacity of a large air volume, low noise, and high efficiency blower can be sufficiently exhibited, but additionally, ventilation is performed from the blow-out air passage 10 through the duct flange. The air can be blown to the duct, and the air can be blown to a distant required place and the indoor air can be exhausted to the outside. This makes it possible to use the ability of the fan and develop it to various uses at low cost.

FIG. 2 is a view for explaining the structure of the front surface with the decorative grille removed, and has a configuration in which two blowers described in FIG. 1 are connected. The blower arranged on the upper side in the figure flows into the propeller fan 2 which sucks fresh air from the outside or sucks air from other places in the room, for example, from the intake duct 12 in addition to sucking air from the suction opening 14a. Is shown. The propeller fan of the blower arranged on the lower side sucks the air obtained by combining the blowing from the upper blower and the suction of the air from the suction opening 14a. The structure between the two blowers is similar to that of FIG.
The duct flange 13 is connected to the other duct flange 17 or an opening where the duct flange 13 or the opening where the duct flange 13 is located in a state where there is almost no portion projecting outward from the box-shaped main body outer surface 6 of the box-shaped main body 3, 17. It is configured to flow from the blowing air passage 10 to the suction space 41 of the second blower. In this way, it is possible to use the blower to blow air from one to the next without being limited to two, for example, to connect five air blowers in series to make a blower into a long and narrow room, or to connect the blowers in a square shape. Thus, it is possible to obtain a device that can be used in many applications, such as arranging and blowing air to a large area, or connecting each blower individually with a duct having a long distance to blow air to a distant place.

FIG. 3 illustrates a frontal structure in which a decorative grille is put on the structure of FIG. 2. With this decorative grille, only two opposing outlet openings in the four directions on the outer periphery of each blower are opened. One is closed and two openings are connected linearly. In other words, the wind is flowing up to the blow-out air passage 10, but the outlet to the room is narrowed to increase the blowing speed to the room, so that the air can reach far into the room and the range of circulation in the room is widened to increase the blowing effect. It is a configuration that can do it. Further, the air in the room sucked into the suction opening 14a can be sucked from the longitudinal direction without being affected by the wind blown in the width direction. That is, the flow of the blown air is not attracted to the center side by the flow of the sucked air, and the short-circuit occurs. Since it does not enter the circuit state, the blowing air speed is further improved, and the circulating air in the room is expanded to a wider range, so that effective blowing can be performed.

The duct flange 13, which is a communicating air passage, is provided so as to intersect the outlet air passage 10. In the case of air blowing that circulates indoor air, the surface that opens into the room is wide open when air is drawn in from the room and air is blown out toward the room. It is desirable to avoid providing a communication duct on the back surface having the centrifugal diffuser air passage 9 because it interferes with the flow of air and adversely affects the characteristics. For this reason, the length of the blow-out air passage 10 is shortened, and the whole blower is made thin and flat, and an intake duct 12 for increasing the air flow is formed so as to intersect with the blow-out air passage from outside the blower to the central suction space. Improve circulation efficiency. However, the outlet air passage 10 may be provided irrespective of the inlet and its direction as long as it does not greatly affect the centrifugal diffuser air passage 9 in a configuration in which the outlet air is blown indoors. There is no need to blow in the direction, and the form may be freely selected according to the place where the apparatus is installed and the intended use. If the aperture of the opening of the outlet is too narrow, the air volume will be suppressed if it is too narrow, and if it is too open, the blown air speed will be slow and it will not be possible to obtain the flow of air to the distant place, so it should be opened to the extent that the required wind speed can be obtained, Basically, if the shape of the air outlet is greatly deviated from the symmetric shape with respect to the central axis, the flow will be deviated, the noise will increase, and the ventilation characteristics will deteriorate, so it is not preferable except when using with reduced fan capacity. In addition, by providing the communication duct at a position where the outlet of the air outlet that blows out to the room by the decorative grill is narrowed, it is possible to suppress the influence on the ventilation to the room. Similarly, by providing the opening connected to the duct flange 17 and the ventilation duct 16 as the second outlet at a position where the outlet of the decorative grille into the room is narrowed, it is possible to suppress the influence on the ventilation to the room.

As shown in FIGS. 1 and 2, a heat absorbing / heating element 22 is provided at a position near the outlet of the outlet air passage 10 located at the outlet of the centrifugal diffuser air passage 9. Since the heat absorbing / heating element is located in the place where the wind speed is the highest, not only the heat exchange efficiency is good, but also the blowing air path exists on the four outer surfaces of the main body. If a sheathed heater is used, heat can be exchanged effectively, and the influence on the blowing wind is reduced. In addition, with regard to heat exchange, a larger amount of air can be exchanged if the amount of air passing through the outer periphery of the sheathed heater is large. Further, the heat absorbing / heating element 23 may be provided in the inner side surface of the main body, that is, in the suction space 41 as shown in FIG. Since it is provided in a large space and a space for installing a heating element such as an infrared heater can be secured, circulating ventilation is not performed, that is, heating can be performed even when the propeller fan is stopped. In addition, the heat passing through the centrifugal diffuser air passage is already high because the heat absorption and heating elements are provided in the suction space of the propeller fan.
For example, the temperature of the circulating air blown out from the second blowout air passage is adjusted. Therefore, when this circulating blower is installed in a washroom, the use is widened, for example, in addition to the auxiliary heating in winter, the warm air from the second air outlet is used for preventing dew condensation on a mirror. As described above, the outlet air passages of the square box-shaped main body are four surfaces on the outer surface of the main body, but are opposed to each other by the decorative grille.
It shows a configuration that closes the surface and raises the wind speed without raising noise, but it is not necessary to be bound by this, as long as it is a closed structure that smoothly connects to the outlet without being bound by shapes such as rectangles, polygons, ellipses, and gourds The good is natural. As in Figure 3 when arranging the outlet of a plurality of blowers in a straight line can be obtained excellent design in the interior of. With the above configuration, not only power saving, large air volume and low noise circulating wind can be obtained, but also the indoor air can be circulated efficiently, and the air conditioned by the piping duct can be mixed and circulated with the indoor air. A user-friendly device or system that can perform both ventilation and ventilation is possible.

Embodiment 2 FIGS. 4, 5, 6, and 7 are views showing the configuration of a blower according to another embodiment of the present invention.
Is an integral fan casing, 20 is a mounting hole for fixing the main body, 2
1 is a wooden screw for fixing the main body, and 43 is a wind direction plate. In FIG. 4, the integral fan casing 18 is formed by integrally molding the fan casing 5, the second air path member 4, and the inner surface 7 of the main body with a heat insulating lightweight material such as styrene foam. Furthermore, a heat insulating material 19 is attached to the outer surface of the main body 8,
Further, since the intake duct 12 using a pipe communicating with the suction space 41 is configured to be connected to the duct flange, when sucking and circulating the conditioned air, the heat insulation work is simple and easy. Can be connected.
Further, not only the heat insulating material 19 but also the suction space 4 which is an inner box.
The partition between the air passage 1 and the outlet air passage 10 is an integrally molded product of a heat-insulating and lightweight material such as styrene foam, so that heat insulation is good and light weight can be secured, so that not only the manufacturing cost can be reduced, but also it is easy to handle and easy to install. is there.

In the circulating blower shown in FIG. 5, the integral fan casing 18 has the fan casing 5, the second air path member 4, and the inner surface 7 of the main body integrally formed of a heat-insulating lightweight material such as styrene foam, as described above. Further, the drive motor 1 is built in a hub that rotates the propeller fan so that the motor and the fan are wrapped so that the axial length is greatly reduced. As a result, all the components are housed in the main body 8, and the first air path member 3, the main body outer surface 6, and the decorative grille 14, which form the outer shell of the box body, are put together in a thin flat plate shape. This results in a very thin, light and easy to handle blower. The first air passage member 3 which is a surface facing the outlet of the blow air passage 10 has a mounting hole 20 for fixing the main body.
Is prepared, and is directly attached to the ceiling surface 15 with the main body fixing wood screw 21. It can be attached to the wall from the front to the back of the main unit using the ventilation path of the main unit that is open for ventilation, so there is no need for special parts for installation, and it is very easy to place the main unit anywhere, such as a high ceiling or It can be freely attached to a thin wall or a vehicle.

FIG. 6 shows a structure (a) in which a light and thin circulating blower manufactured by using the integrally formed fan casing 18 is embedded in the ceiling surface, and FIG. 6 (b) is a partial view showing the structure of a wind direction plate. is there. In the case of a ceiling embedded structure, the makeup grill 14
Is exposed on the ceiling surface, and the suction opening 14a in the substantially central portion is exposed.
Outlet opening 14b located on the outer periphery by sucking air from
A circulating wind blows out from. The motor is wrapped inside the blades of the propeller fan 2 to make it even thinner, so that it can be easily attached to a narrow ceiling. The mounting is such that the mounting flange portion 8a on the outer peripheral portion of the box-shaped main body can be fixed to the ceiling from the inside of the room with a wood screw, so that a lightweight and thin structure can be effectively utilized. In addition, this blower uses a propeller fan and a centrifugal diffuser air passage allows a large air flow to reach the floor surface 24 with low noise while maintaining a large air volume. By changing the angle of the wind direction plate 43 provided in the blow-out opening 14b, the wind is increased. Direction can be changed. A wind direction plate 43 is provided substantially at the center of the blowout opening 14b, and the wind direction plate rotates around a fulcrum at the center. The opening of the rotating operation can be changed by a stepping motor, and the direction of the circulating wind is determined by the opening of the wind direction plate. In the figure, the air is blown out in the right and left directions, and the wind direction plate also has a function of an opening / closing damper.

FIG. 7 shows a configuration in which the circulating blower is directly mounted on the indoor side of the ceiling surface. The box-shaped main body 8 is exposed on the ceiling surface and is fixed with a wood screw as described above. Inside, the air blown from the propeller fan is blown out to the floor 24 with a large air volume and low noise by the centrifugal diffuser air passage in the same manner as described above. The motor is wrapped inside the blades, so it is thin.In addition, since it sucks in from the lower surface of the grill and blows out from the lower surface of the grill, there is no blower at a low position and there is no pressure on people in the room. It is possible to secure the air volume at least, and to blow out from two locations on the outer circumference of the opposing position in the entire circumference.
As the air is sucked into the center from the remaining two outer peripheral sides, the flow into the room changes from lateral expansion to forward and backward circulation as shown in the figure. Air can be circulated. In other words, if the air outlets are distributed not at the center of the decorative grille but at two places, and the wind direction plate is automatically changed by a motor or the like, the wind direction is further dispersed, and the discomfort given to a person can be greatly reduced. In addition, in the structure of FIG. 7, since the circulation blower is not connected by a duct but is independent, a ventilation fan 32 is provided as necessary to perform ventilation. As described above, such a circulating blower is installed on the ceiling or wall of a place where air conditioning does not reach in a large space or where air conditioning is not performed, such as a washroom, so that people can be blown directly or create airflow and feel the flow It can give a cool breeze feeling. Further, by applying a circulating wind to the laundry, the drying can be accelerated, and the effect of accelerating the ventilation in the room can be obtained.

Embodiment 3 FIG. 8 is a view for explaining an air conditioner, in which 30 is a circulating blower for circulating indoor air, and 31 is for cooling air by a heat exchanger connected to a refrigeration cycle for sucking indoor air and circulating refrigerant. An air conditioner that circulates air temperature-controlled by a built-in fan, 25 is an intake damper, 26 is an exhaust damper, and 30 is a propeller fan similar to that described in the above description. This is a circulating blower that blows out a large amount of air at a relatively high wind speed. As a method of circulating air whose temperature is controlled indoors, there is a method of operating a fan in a room where an air conditioner is present, but the effect of cooling and heating is limited to circulation using only partial air in the room. Although it is limited and it is not effective in a very wide area or it can not be done in another room together, the device of the present invention can effectively control the temperature of the air where it is needed by the circulating blower and reduce the noise. Can be circulated. Further, the intake damper 25 can take in a required amount of air cooled from the air outlet of the air conditioner through the intake duct. Thus, it is possible to adjust the position and the amount of the cooled air to be blown according to the location of the person in the room. In addition, this circulating blower has a wind speed and air volume that enables air to be blown to the floor surface 24, and circulates through a wide range in the room by suction from a suction port having a direction different from that of the outlet provided at the opposed position. Air conditioning can be performed as effectively as it is separately provided and with lower noise than the air conditioner.

It is also possible to perform air conditioning in another room from the circulating blower 30 through the exhaust duct 16, so that the temperature of a plurality of rooms and corridors can be controlled with simple equipment. In this case as well, the intake of the amount of air whose temperature has been adjusted by the exhaust damper can be adjusted.For example, by gradually cooling the part that leads from the comfortably cooled room to the high-temperature outdoor, not only energy saving effect but also human body Offices and factories that can reduce the impact on the environment. In addition, in any large room, the refrigeration cycle piping is shortened to provide a large capacity, and an air conditioner and multiple circulating blowers arranged at the required places are installed at low cost with simple equipment that can be connected by ducts. Cooling and heating can be performed, and effective and low energy equipment can be obtained. This not only simplifies installation and maintenance, such as arranging multiple air conditioners around the refrigeration cycle piping, but also allows air conditioning in each room to be controlled only by the damper and allows centralized management to be easily performed. In the example of the straight child, the example of the air whose temperature has been adjusted as the air-conditioned air has been described. However, it is obvious that a device for adjusting the humidity may be provided to perform the air conditioning with the humidity adjusted.

Each of the open / close dampers is rotatably driven by a rotation shaft at a central portion thereof. The angle of the wind direction plate is set to be horizontal and the air path is completely closed. Can be set at each angle. A DC motor called a stepping motor rotates at a low speed, and the direction of rotation can be changed in either the forward or reverse direction by changing the polarity of + and-, and the angular position can be arbitrarily set, thereby adjusting the ventilation volume. The rotary intake damper 25 shown in FIG. 8 is provided on the duct flange 13 located at the suction opening, and the opening degree can be adjusted to adjust the suction air flow. The exhaust damper 26 has the same structure, and can be ventilated by directly exhausting to the outside through the exhaust duct 16. This circulating blower enables, for example, both circulation and mixing and ventilation of conditioned air from an air conditioner at the same time with one propeller fan. In addition, by operating the damper, the mixing with the conditioned air, and the air volume ratio of circulation and ventilation can be performed by opening and closing the damper. For example, when air conditioning is required for both the space where the air conditioner is installed and the space where the circulating blower is installed, for example, if there is no need to air-condition the space where the circulating blower is installed, a switch is used. Is operated to bring the intake damper 25 into the fully closed state and stop the operation of the circulating blower, so that no unnecessary air-conditioning air is sent into the unnecessary space. When the circulation blower is operated with the intake damper fully closed, there are provided a portion for strongly performing air conditioning such as cooling, and a portion for creating an airflow by the circulation ventilation and sending cool air. In this case, even if the cooling temperature of the air conditioner is set to a high value, the circulating air is present and it feels cool as cool air, so that energy saving operation is possible. In addition, if you want to air-condition the space where the circulation blower is installed more powerfully than the space where the air conditioner is installed, also use the switch to fully open the intake damper and send more air conditioning air to the circulation blower side Good. The exhaust damper 26 can adjust the ratio between the circulating air and the exhaust air. For example, in the early morning or night of the season when cooling is required, the exhaust damper is fully opened, the temperature of the air conditioner is set to a high value, and the exhaust air volume is increased. It is possible to perform an operation mainly based on outside air cooling that takes in more outside air. This operation can be easily performed by detecting the temperature of the room or the outside air and storing it in the microcomputer so as to operate in a special pattern only for a set time period. In the daytime, the exhaust damper is closed to reduce the rate of exhausting the circulated air in the room that has been air-conditioned to the outside, thereby suppressing the waste of air-conditioning energy. It is only necessary to detect the air contamination by a smoke sensor with a smoke sensor or the like, open the exhaust damper fully, and increase the ratio of the exhaust air. As described above, the equipment is placed in the necessary places, and the temperature setting of the air conditioner, the operation stop of the blower, the setting of the wind direction of the wind direction plate, the setting of the ventilation volume by the damper are performed based on the detection results by the switches and each sensor at one place The air-conditioning system which can be operated by the air conditioner, can be effectively cooled and heated and ventilated, is quiet, has low energy, and is easy to install and maintain.

Embodiment 4 FIGS. 9 and 10 are views for explaining the blowing and suction of air of the circulating blower of the present invention. A decorative grill 14 is provided on the lower surface of the box-shaped main body 8 facing the room. In FIG. 9, the blowout opening 14b is formed on two opposing surfaces on the outer periphery of the suction opening 14a, and the other two surfaces are closed. Here, the box-shaped main body 8 has a square shape, the suction opening 14a is disposed substantially at the center of the decorative grille 14, and the blowout opening 14b is disposed outside the suction opening 14a and substantially in the same plane across the suction opening 14a. . The circulating air blown out from the blow-out opening 14b is blown almost right below, and the suction flow is 90
° Smoothly sucked from the inner surface of the circulating wind.
Thereby, the circulating wind in the room can circulate over a wide range. If this suction port is projected from the decorative grill and slightly changed from the plane of the outlet, the wall surface forming the suction port serves as a guide, so that the blowout direction can be set to a wider range.

FIG. 10 shows a structure in which air is blown out from all four sides in the structure of the air outlet shown in FIG. 9. In this case, since the circulating air covers the entire outer periphery of the suction opening 14a, the flow of the air blown out by the flow of the sucked air Is drawn to the center side of the decorative grill and the reach of the circulating air blown into the room is rapidly reduced. In other words, because one of the units is connected in a duct and connected one after the other in the middle of a plurality of circulating blowers, it is installed mainly in a narrow place. It is a form used at times. Of course, it can also be used when it is desired to suppress the blowing wind. In FIG. 9, the box-shaped main body 8 has a square shape, and the outlet air passage has four surfaces on the outer peripheral portion of the main body. I can do it. This allows the two outlets facing each other to change direction only by changing the makeup grill position,
It is possible to change the direction of the circulating wind, which is the flow of the blowing and suctioning air. As a result, it is possible to select a flow considering the arrangement of objects in the room or a wind flow according to a position where a person always exists.

FIG. 11 shows that the box-shaped main body 8 of the blower has a cylindrical shape, and the decorative grille 14 has the same structure, and the blow-out air path 10 is blown by the decorative grille attached to the blow-out air path all around the outer periphery of the main body. The opening of the opposite part of the road is closed about half. This makeup grill is rotated around the main body at a constant speed by a motor attached to the main body.
The position of 4b changes, and the blowing position can be changed. (A) Compared to (a), (b) is a state where the makeup grill is rotated about 90 °,
A gallery for changing the wind direction in the blowout opening 14b, that is, a diagonal plate is continuously provided at the opening like a grill, and the direction of the blowout is changed by arranging a plurality of plates at random angles. And so on. When the makeup grill rotates, the change in the position of the outlet and the change in the wind direction due to the gallery are combined,
The circulating wind can be blown out in all directions and in a plurality of predetermined directions.

The mounting only a thin body 8 small in FIG. 11 at pinned to the legs of the floor-mounted, vertically, if rotatable structure back and forth, can be used as a fan for every floor. Built-in heater can be used for heating. When a hook is attached to the back or side of the box-shaped body, it can be hooked and detached on a hook provided on the wall and used as a cool air blower for bathrooms, etc., and can be put away when not needed. Japanese in it is sufficient to stop a decent position convenient to move the manually position the structure can be rotated to the direction and position for blowing as in Figure 11.

The centrifugal diffuser forming the ventilation circuit with the propeller fan 2 in one box-shaped main body 8 has been described on the basis of a single compact structure. However, a plurality of blowers are arranged in parallel. In such a case, the outer shell for accommodating them may be formed of one integral component. In other words, by disposing a plurality of internal structures including the partitions of the blower in parallel and housing the main body that stores them, it is assembled and disassembled for installation in a room or arrangement on the ceiling of a train, etc. Such handling becomes easy. Further, the structure in which the outlet is closed by the grille has been described, but the outlet may be closed by using a partition such as the outer shell body, the outer surface, or the inner surface, or a duct flange. However, by closing at a position close to the suction opening, it is possible to eliminate the adverse effects on the air volume and pressure. In particular, noise can be suppressed from increasing by setting a plurality of positions as outlets so as not to generate a drift in the outlet from the propeller fan. Also, any shape or configuration that does not significantly affect the suction air or the blowing air even if the opening or closing part of the outlet is partially closed or partially opened without completely opening or closing it is good. That is natural. As described above, since the present invention uses a propeller fan, the structure is simple, the blade load is small, high-speed rotation is possible, and large-capacity ventilation is possible even in a small size because air is sucked from a plurality of air suction ports. It is possible to obtain a desired air volume with low noise. In addition, it is possible to obtain products that can be easily installed by reducing the weight by using foam materials, and it is possible to manufacture environmentally friendly products with a simple structure using metal parts such as magnesium alloys that facilitate recycling. By providing a simple air pipe without dragging and circulating the refrigerant pipe as described above, a practical device can be obtained in which a large room or many rooms in a building can be cooled with a simple configuration at low cost.

[0053]

According to the blower according to the first aspect of the present invention, the air from the suction port and the communicating air path is blown into the room from the outlet air path via the centrifugal diffuser air path, so that the centrifugal diffuser air path is provided. Due to the large air volume of the propeller fan,
The pressure (static pressure) can be increased by changing the flow by 90 ° while taking advantage of the characteristics of low noise and high efficiency, as compared with the axial flow, which is the flow of a conventional propeller fan. In addition, the structure is simple, the blade load is small, high-speed rotation is possible, and a desired air volume can be obtained with a small size.

A blower according to a second aspect of the present invention is characterized in that the blower outlet faces substantially the same plane as the suction opening that blows out the air from the centrifugal diffuser air passage, and that the outer box body is connected from the outside to the inner box body. With a communication air passage that penetrates to the suction space of the internal propeller fan, the suction air blows out in the opposite direction to the suction direction, enabling large air volume to be blown, and for example, sucking fresh outside air from the outside Air can be sucked in from other parts of the room.

According to a third aspect of the present invention, there is provided the blower, wherein the air discharged from the centrifugal diffuser air path is guided to the suction port side, and the blow air path is separated from the suction space. A communicating air passage that intersects with the passage and communicates with the suction space to suck in the air, and the propeller fan simultaneously sucks the air from the suction port and the air from the communicating air passage. It can suck in outside air, suck in air from other places in the room, and blow air for various uses with low noise.

The blower according to claim 4 of the present invention is provided with a mounting portion that can be mounted on a ceiling surface or a wall surface on a surface of the outer box that faces the air outlet, so that the main body is open for ventilation. No special parts are required for installation because it can be attached to the wall behind the main unit using the ventilation path of the main unit, and the main unit can be easily mounted anywhere, for example, on a high ceiling, thin wall, or vehicle. Can be installed.

According to a fifth aspect of the present invention, the blower is provided on the back surface of the box body on the side of the first air passage member or on the side surface of the outside of the blow-out air passage. Since the main body is equipped with a mounting part, it can be detached by hooking the main body on a hook provided on the wall surface, and can be used as a cool air blower in a bathroom or the like, and can be put away when not needed.

In the blower according to the sixth aspect of the present invention, the suction port is provided at the center of the box close to the suction portion of the propeller fan, and a plurality of outlets are provided at target positions on the outer peripheral side of the box. The circulating wind blown out from the blow-out opening is blown almost right below, the suction flow is smoothly sucked from the inner surface of the circulating wind shifted by 90 ° from this, and the circulating wind in the room can circulate over a wide range.

In the blower according to claim 7 of the present invention, since a part of the outlet is closed by the decorative grill, the flow of the blown air is not attracted to the center by the flow of the sucked air, and the short circuit state does not occur. So the blowing wind speed is further improved,
In addition, the circulating air in the room can be expanded to a wider range, and effective air can be sent.

In the blower according to claim 8 of the present invention, the makeup grill is changed in the mounting direction so that the position of the outlet and the blowing direction can be changed. The direction of the circulating wind, which is the flow of air, can be changed.

The blower according to the ninth aspect of the present invention blows out circulating air in an arbitrary direction or in a plurality of predetermined directions due to a change in the position of the air outlet due to the rotation of the decorative grill. I can do it.

In the blower according to the tenth aspect of the present invention, since the second blow air path is provided from the blow air path or the air path between the centrifugal diffuser air path and the blow outlet, the duct flange is formed from the blow air path. The air can be blown to the ventilation duct through the air passage, so that the air can be blown to a distant required place or the indoor air can be exhausted to the outside.

In the blower according to the eleventh aspect of the present invention, the blow-out air passage is provided on the outer peripheral portion of the box, and the blow-out outlet is provided at a target position where there is no communication air passage or the second blow-out air passage. The communication air passage and the second air outlet air passage can suppress the influence on the air blowing into the room.

A blower according to a twelfth aspect of the present invention is arranged such that a plurality of ventilation circuits each comprising a propeller fan and a centrifugal diffuser air path are arranged in parallel, and communicate with an air path between one centrifugal diffuser air path and an air outlet. The second blow air path and the other propeller fan are connected to a communication air path that communicates with a suction space portion that performs suction, and a plurality of ventilation circuits arranged in parallel are connected to each other. It can be easily constructed, and if a plurality of air outlets are arranged in a straight line, the interior will be excellent.

In the blower according to the thirteenth aspect of the present invention, the communicating air passage that communicates the outside of the box with the suction space portion takes in outside air or air that has been air-conditioned such as for cooling or heating. With a propeller fan, for example, both circulation and mixing and ventilation of conditioned air from the air conditioner can be simultaneously performed.

In the blower according to the fourteenth aspect of the present invention, since the heat absorbing / heating element is provided in the blowing air path, the heat exchange efficiency is good.
Further, in the case where the heat absorbing / heating element is provided in the suction space, a space for installing the heat absorbing / heating element can be easily secured.

In the blower according to the fifteenth aspect of the present invention, since the partitioning portion for partitioning the suction space of the propeller fan and the blow-out air passage is formed of a foam material, when the air-conditioned air is sucked and circulated, heat insulation work is performed. Simple and easy connection to piping.

The blower according to claim 16 of the present invention has a second
By forming at least one of the centrifugal diffuser air path and the open air path such as the air path member integrally with the partitioning part using a foam material, good heat insulation and light weight can be ensured, and not only the manufacturing cost can be reduced but also it can be simplified. And easy to install.

The blower according to the seventeenth aspect of the present invention is provided with a wind direction means capable of changing the direction of the wind blown to the outlet.
If the wind direction plate is automatically changed by a motor or the like, the wind direction is further dispersed, and discomfort to humans can be greatly reduced.

The blower according to claim 18 of the present invention is provided with an opening / closing damper for opening and closing the air path in at least one of the blowing air path, the communicating air path, and the second blowing air path. The mixing with the conditioned air or the air flow rate of circulation and ventilation can be performed by opening and closing the damper.

The blower according to claim 19 of the present invention is characterized in that
Since the air path member and the inner surface of the main body are integrally formed of a foam material, good heat insulation and light weight can be ensured, not only can the manufacturing cost be reduced, but also it can be easily handled and mounted.

An air conditioner according to a twentieth aspect of the present invention is provided with a blowing means arranged outside the box for blowing air, a conditioning means for conditioning temperature or humidity of air, and a blow duct. And air-conditioning means connected to at least one of the communication ducts, so that air from the suction port and the communication duct can be sucked into the suction space in the box, thereby circulating a large air volume, low noise, and power saving. Not only can wind be obtained, but indoor air can be circulated efficiently, and air conditioned by piping ducts can be mixed with indoor air and circulated.

An air conditioner according to a twenty-first aspect of the present invention is arranged such that a plurality of boxes are arranged, or a plurality of ventilation circuits each including a propeller fan and a centrifugal diffuser are arranged. Since the communication duct is connected and the box or the ventilation circuit is connected, it is possible to use the blower to blow air from one to the next, for example, to connect five units in series and make a blower into a long and narrow room, A wide range of air conditioning can be performed.

An air conditioner according to a twenty-second aspect of the present invention is characterized in that a plurality of boxes are arranged or a plurality of ventilation circuits including a propeller fan and a centrifugal diffuser are arranged. Since at least one of the outlet ducts is connected to the air-conditioning means, air-conditioning can be performed as effectively as a separate air-conditioner, with lower noise than the air-conditioner, and with a simple configuration.

According to the blowing method of the blower according to claim 23 of the present invention, not only a large air volume, low noise, and a power-saving circulating wind can be obtained, but also the indoor air can be efficiently circulated, and the air-conditioning is performed by a piping duct. Mixed with the indoor air and circulated,
Convenient products such as circulation and ventilation can be easily obtained.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a circulation blower according to an embodiment of the present invention.

FIG. 2 is a front view of the circulation blower according to the embodiment of the present invention when the makeup grill is removed.

FIG. 3 is a front view of the circulating blower according to one embodiment of the present invention when a decorative grill is attached.

FIG. 4 is a cross-sectional side view of a blower according to another embodiment of the present invention.

FIG. 5 is a side sectional view of a blower according to another embodiment of the present invention.

FIG. 6 is an explanatory view of a blower according to another embodiment of the present invention.

FIG. 7 is an explanatory view of a blower according to another embodiment of the present invention.

FIG. 8 is an explanatory diagram of an air conditioner according to another embodiment of the present invention.

FIG. 9 is an explanatory view of a blower according to another embodiment of the present invention.

FIG. 10 is an explanatory view of a blower according to another embodiment of the present invention.

FIG. 11 is an explanatory view of a blower according to another embodiment of the present invention.

FIG. 12 is an explanatory diagram of a conventional blower.

FIG. 13 is an explanatory diagram of a conventional blower.

FIG. 14 is an explanatory diagram of a conventional blower.

FIG. 15 is an explanatory view of a conventional blower.

[Explanation of symbols]

1 drive motor, 2 propeller fan, 3 first
4 air path member, 4 second air path member, 5 fan casing, 6 body outer surface, 7 body inner surface, 8
Box-type body, 9 Centrifugal diffuser air passage, 10 Blow-out air passage, 11 Air outlet closed part, 12 Intake duct,
13 Duct flange, 14 Makeup grill, 15
Ceiling plate, 16 ventilation duct, 17 duct flange, 18 integral fan casing, 19 heat insulation,
20 mounting holes for fixing the main body, 21 wood screws for fixing the main body,
22 Endothermic / heating element, 23 Endothermic / heating element, 24
Floor, 25 intake damper, 26 exhaust damper,
Reference Signs List 30 circulation blower, 31 air conditioner, 32 ventilation fan, 41 suction space, 42 blade mounting nut, 4
3 wind direction plate, 51 propeller fan, 52 drive motor, 53 fan casing, 54 suction grille, 55 first air path member, 56 second air path member, 57 centrifugal diffuser air path, 58 heat absorption /
Heating element, 59 bent channel, 101 box-shaped body, 1
02 Body fixing bracket, 103 Ceiling suspension bolt, 10
4 ceiling surface, 105 decorative grille, 106 fan casing, 107 cross flow vane, 108 suction air passage, 109 floor surface, 110 drive motor, 111
Propeller fan, 112 Fan guard, 113
Motor fixing part, 114 ceiling surface, 115 suction space.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI theme coat ゛ (Reference) F04D 29/54 F04D 29/54 F 29/56 29/56 E 29/66 29/66 N F24F 1/00 316 F24F 1/00 316 7/007 101 7/007 101 (72) Inventor Jin Kikuchi 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Inside Mitsubishi Electric Corporation (72) Inventor Yasu Makino Marunouchi, Chiyoda-ku, Tokyo 2-3-2, Mitsui Electric Co., Ltd. (72) Inventor Naoshi Yokoya 2-3-2, Marunouchi, Chiyoda-ku, Tokyo F-term (reference) 3H032 CA08 CA09 CA10 NA05 NA06 NA07 3H034 AA02 AA18 BB02 BB08 BB20 CC03 DD02 DD06 DD12 DD26 EE06 EE12 EE18 3H035 DD01 DD06 3L049 BD03 3L056 BG01 BG02 BG08 BG09

Claims (23)

[Claims] 1. A blower having a centrifugal diffuser air path between substantially parallel surfaces extending from a discharge side end of a propeller fan to an outer peripheral side, wherein the centrifugal diffuser air path, an air inlet facing the room, and an air inlet are provided. A box body having a suction space between the suction port and the propeller fan, a blow-out air path that blows air from the centrifugal diffuser wind path provided in the box body toward a room, and the blow-out air path. A communication air passage that is provided to intersect and communicates with the suction space from the outside of the box body, and that the air from the suction port and the communication air passage is supplied through the centrifugal diffuser air passage to the blow-out air passage. A blower capable of blowing air into the room from above. 2. An inner box for sucking air from a suction port by rotation of a propeller fan, an outer box for supporting and covering the inner box and holding the propeller fan, and an inner box. A centrifugal diffuser air path having a discharge air path between substantially parallel surfaces extending from the discharge side end of the propeller fan to the outer peripheral side between the outer box body and a blown air from the centrifugal diffuser air path. An air outlet that faces substantially the same plane as the suction port, and a communication air passage that penetrates from the outside of the outer box to the suction space of the propeller fan inside the inner box. Features blower. 3. A propeller fan which is rotationally driven by a drive motor and sucks air from a suction port into a suction space in a box body, and a flat surface which extends from a discharge side end of the propeller fan to an outer peripheral side and forms the propeller fan. A first air path member to be held, and a centrifugal diffuser wind that flows air discharged from the propeller fan between the first air path member and the first air path member surrounding the propeller fan inside the first air path member. A second air path member that forms a path, and a blow-off air path that is separated from the suction space that guides air discharged from the centrifugal diffuser air path to the suction port side, and the blow-off air from outside the box body. A communicating air passage that intersects with the air passage and communicates with the suction space to suck in air, wherein the propeller fan sucks air from the suction port and air from the communicating air passage. Features blower. 4. An inner box for sucking air from a suction port by rotation of a propeller fan, an outer box for supporting and covering the inner box and holding the propeller fan therein, and an inner box. A centrifugal diffuser air passage having a discharge air passage between substantially parallel surfaces extending from the discharge side end of the propeller fan to the outer peripheral side between the outer casing and the outer casing, and blowing air from the centrifugal diffuser air passage. An outlet facing substantially the same surface as the suction port to be discharged, and a mounting portion provided on a surface of the outer box body facing the air outlet and capable of mounting the box body on a ceiling surface or a wall surface. A blower characterized by the above-mentioned. 5. A propeller fan which is rotationally driven by a drive motor housed in a box and sucks air from the suction port into the box, and which extends from an end on the discharge side of the propeller fan to an outer peripheral side and a back surface of the box. Forming a first air path member for holding the propeller fan, and a first air path member surrounding the propeller fan inside the first air path member.
A second air path member that forms a centrifugal diffuser air path for flowing air discharged from the propeller fan between the air path member and the air path member, and guides the air discharged from the centrifugal diffuser air path to the suction port side. The suction space portion is provided with a partitioned blow-off air passage, and a rear surface of the box body on the side of the first air passage member or a side surface outside the blow-out air passage. A blower, comprising: a changeable mounting portion. 6. The box according to claim 1, wherein the suction port is provided at the center of the box close to the suction portion of the propeller fan, and a plurality of outlets are provided at target positions on the outer peripheral side of the box.
6. The blower according to at least one of the above items 5 to 5. 7. The air outlet according to claim 1, wherein the air outlet is provided on an outer peripheral portion of the box, and the outlet is partially closed by a decorative grill attached to the air outlet. A blower according to at least one of the preceding claims. 8. The blower according to claim 7, wherein a position of the outlet and a blowing direction of the decorative grill can be changed by changing a mounting direction. 9. The box is formed in a square or cylindrical shape,
The blower according to at least one of claims 1 to 8, wherein a decorative grill that blocks substantially half of the blow-out air path is attached so as to be able to change the position of the blow-out port and the blow-out direction. 10. The at least one of claims 1 to 9, wherein a second outlet air path is provided from the outlet air path or the air path between the centrifugal diffuser air path and the outlet.
Blower as described. 11. The air outlet is provided at an outer peripheral portion of the box, and the air outlet is provided at a target position where no communication air passage or second air outlet exists.
11. The blower according to at least one of items 10 to 10. 12. A plurality of ventilation circuits each including a propeller fan and a centrifugal diffuser air path are arranged in parallel, and a second blow air path communicating with an air path between one centrifugal diffuser air path and an air outlet is provided. The at least one of claims 1 to 11, wherein one of the propeller fans is connected to a communication air passage communicating with a suction space portion for performing suction, and a plurality of the ventilation circuits arranged in parallel are interconnected. The blower according to 1. 13. An air passage communicating between the outside of the box and the suction space portion takes in outside air or air-conditioned air such as cooling or heating into the box. The blower according to 1. 14. A temperature control means for absorbing heat or generating heat in the air passage between the blow-out air passage or the centrifugal diffuser air passage and the air outlet or in the suction space of the propeller fan to perform temperature conditioning on the air. 14. A blower according to at least one of the preceding claims. 15. The at least one of claims 1 to 14, wherein a partitioning portion for partitioning the suction space of the propeller fan and the blow-out air passage is formed of a foam material.
Blower as described. 16. The blower according to claim 15, wherein at least one of a centrifugal diffuser air passage and a communication air passage such as a second air passage member is integrally formed with a partition portion by a foam material. 17. The blower according to claim 1, further comprising a wind direction means capable of changing the direction of the wind blown to the outlet. 18. An opening / closing damper for opening / closing an air path is provided in at least one of an air blowing path, a communication air path, and a second air blowing path. Blower as described. 19. A propeller fan which is driven to rotate by a built-in drive motor and sucks air into the inside of the box through a suction port on the indoor side, and a propeller fan which extends from a discharge side end of the propeller fan to an outer peripheral side and a back surface of the box. And a first air path member that holds the propeller fan, and the first air path member is formed by surrounding the propeller fan inside the first air path member and extending outward to the first air path member. A second air path member that forms a centrifugal diffuser air path through which air discharged from the propeller fan flows, and the suction space that guides the air discharged from the centrifugal diffuser air path to the indoor side are partitioned by an inner side surface of the main body. A blower air passage disposed on an outer peripheral side of the blower, wherein the second air passage member and the inner side surface of the main body are integrally formed of a foam material. 20. A centrifugal diffuser air passage for flowing air discharged from the propeller fan between substantially parallel surfaces extending from a discharge side end of the propeller fan to an outer peripheral side, the centrifugal diffuser air passage, and air from a room. That has a suction port for sucking air, a suction space between the suction port and the propeller fan, and a blowout port that blows air from the centrifugal diffuser air passage provided in the box into a room. An air duct, and an outlet duct that is provided in the outlet air path and blows air to the outside of the box body different from the outlet.
A communication duct that communicates with the suction space from the outside of the box and sucks air from outside the box different from the suction port; blowing means disposed outside the box to blow air; Air conditioning means connected to at least one of the blow-out duct and the communication duct, and air from the suction port and the communication duct is provided in the box body. An air conditioner characterized in that the air can be sucked into the suction space. 21. A plurality of boxes are disposed, or a plurality of ventilation circuits including a propeller fan and a centrifugal diffuser air path are disposed, and one of the outlet ducts and the other communication duct are connected to form the box or the box. The air conditioner according to claim 20, wherein a ventilation circuit is connected. 22. Arranging a plurality of boxes, or arranging a plurality of ventilation circuits including a propeller fan and a centrifugal diffuser air path, and connecting at least one of the plurality of communication ducts or blow-off ducts to the air conditioning means. The air conditioner according to claim 20 or 21, wherein: 23. A step of sucking air blown from a blowing means into a propeller fan, and blowing air discharged from the propeller fan through a centrifugal diffuser provided at a discharge end of the propeller fan into a room. Sucking a part of the air discharged from the propeller fan into the blowing means or another blowing means.