JP5755166B2 - Blower - Google Patents

Description

  The present invention relates to a blower that can support blowing in three directions by rotating an installation posture.

  2. Description of the Related Art Conventionally, a blower that includes a rotatable blower inside and sucks and blows air has been used. Most of such blowers are designed and produced in advance for outdoor use or indoor use, and whether to use an outdoor blower or an indoor blower is selected according to the use environment. In addition, an impeller and a motor are fixed on the common base, and it is necessary to place an order for a blower after designating an air blowing direction in advance.

Japanese Patent Application Laid-Open No. 06-257592

  However, the installation orientation of the blower and the duct piping direction are often changed during the construction work. Therefore, when it changed, it was necessary to reorder a blower with a different blowing direction. For manufacturers, in addition to outdoor and indoor types, multiple types with different blowing directions must be lined up, which complicates production and inventory management and increases costs. There was a problem.

  This invention is made in view of the above, Comprising: It aims at obtaining the air blower which can be used irrespective of a use environment and an installation attitude | position, and can aim at the suppression of cost by suppressing the number of lineups. .

  In order to solve the above-described problems and achieve the object, the present invention accommodates an impeller that is rotatable about a predetermined rotation axis, and the suction direction and the blowing direction are substantially vertical. A scroll casing in which a suction port and a blowout port are formed, and a side casing that is provided so as to sandwich the scroll casing from both sides along the suction direction, and has a substantially square cross-sectional shape viewed along the suction direction A motor that is provided outside the side casing and on the opposite side of the suction port to rotate the impeller, and covers any of the four sides of the substantially square shape of the side casing that covers the motor and is viewed along the suction direction. The motor cover, which can be mounted by selecting whether the mounting orientation is oriented with the top surface facing the side, and the closing cover, which can be mounted so as to close the space between the side casings and prevent the intrusion of rainwater And the closing cover is formed so as to be folded at the end of the main cover portion, and the main cover portion closing the direction side perpendicular to the blowing direction among the side casings. It has the auxiliary | assistant cover part which obstruct | occludes between the side casings by avoiding a blower outlet in the blowing direction side among them.

  According to the present invention, it is possible to obtain a blower that can cope with indoor installation and outdoor installation and change of the blowing direction in three directions.

FIG. 1 is an external perspective view showing a schematic configuration of a sirocco blower according to Embodiment 1 of the present invention. FIG. 2 is a six-side view of the sirocco blower according to the first embodiment of the present invention. FIG. 3A is a diagram for explaining the installation posture and blowing direction of the sirocco blower, and is a diagram illustrating the installation posture of the left blowing. 3-2 is a figure for demonstrating the installation attitude | position and blowing direction of a sirocco blower, and is a figure which shows the installation attitude | position of an upper blowing. FIG. 3C is a view for explaining the installation posture and the blowing direction of the sirocco blower, and is a diagram showing the installation posture of the right blowing. FIG. 4 is an attachment diagram of the outdoor installation cover (motor cover and closing cover) to the sirocco blower. FIG. 5 is a six-side view of the motor cover. FIG. 6 is a six-side view of the closing cover. FIG. 7 is a 6-side view showing a modification of the closing cover. FIG. 8 is a diagram showing an outline of an installation example of a sirocco blower.

  Below, the blower concerning an embodiment of the invention is explained in detail based on a drawing. Note that the present invention is not limited to the embodiments.

Embodiment 1 FIG.
FIG. 1 is an external perspective view showing a schematic configuration of a sirocco blower according to Embodiment 1 of the present invention. FIG. 2 is a six-side view of the sirocco blower according to the first embodiment of the present invention. A sirocco blower (blower) 1 blows air by rotating a sirocco impeller (impeller) 2 with a motor 8.

  The outer shell of the sirocco blower 1 is constituted by a casing 3. The casing 3 includes a scroll casing 10 and a side casing 25. The scroll casing 10 accommodates the sirocco impeller 2 inside. The sirocco impeller 2 is rotatable around the rotation axis X inside the scroll casing 10.

  The scroll casing 10 is formed with a suction port 4 that sucks air into the scroll casing 10 and a blower port 5 that blows out the air sucked from the suction port 4. The suction port 4 is formed such that the air suction direction at the suction port 4 (hereinafter also simply referred to as a suction direction) is substantially parallel to the rotation axis X of the sirocco impeller 2. Moreover, the blower outlet 5 is formed so that the air blowing direction at the blower outlet 5 (hereinafter also simply referred to as a blowing direction) is substantially perpendicular to the suction direction. The inlet 4 and the outlet 5 are provided with square duct connecting flanges 6a and 6b, respectively.

  The side casing 25 is two plate-like members provided so as to sandwich the scroll casing 10 from both sides along the suction direction. In the side casing 25 provided on the suction port 4 side, an opening is formed in accordance with the position of the suction port 4. The side casing 25 has a substantially square shape in cross section along the suction direction, and has a size that projects outward from the scroll casing 10.

  A fixing flange 25 a is formed on the outer peripheral portion of the side casing 25. The fixing flange 25a is formed with a body fixing hole 7 for fixing the sirocco blower 1 to the building frame using bolts and nuts.

  The motor 8 is provided outside the casing 3 and on the opposite side of the suction port 4. By connecting the shaft (not shown) of the motor 8 to the sirocco impeller 2, the sirocco impeller 2 can be rotated by the motor 8. Power is supplied to the motor 8 via a power cord 9.

  FIGS. 3-1 to 3-3 are diagrams for explaining the installation posture and the blowing direction of the sirocco blower 1. In FIGS. 3A to 3C, the front side of the drawing is the suction direction side, and the side casing 25 on the suction direction side is omitted. As shown in FIGS. 3-1 to 3-3, the sirocco blower 1 rotates the casing 3 having a substantially square shape by 90 degrees, thereby sucking air from the front side of the paper to the back side and blowing it to the left side. Installation posture (Fig. 3-1), Installation posture of the upper blower that sucks in from the front side of the paper to the back side and blows it upward (Fig. 3-2), Installation posture of the right blower that sucks in from the front side of the paper to the back side and blows it to the right side The three installation postures (FIG. 3-3) can be selected.

  Next, the motor cover and the closing cover will be described. FIG. 4 is an attachment diagram of the outdoor installation cover (motor cover 12 and closing cover 13) to the sirocco blower 1. FIG. 5 is a six-side view of the motor cover 12. The motor cover 12 is installed for the purpose of covering the motor 8 and protecting the motor 8 from rainwater.

  A plurality of through holes 12 a are formed in the motor cover 12. A plurality of screw holes 11 for fixing the motor cover are formed in the side casing 25 of the casing 3. The motor cover 12 is fixed to the casing 3 by screwing the motor cover fixing screw 17 through the through-hole 12 a into the motor cover fixing screw hole 11.

  The top surface 14 of the motor cover 12 has a downward slope received in a direction away from the casing. The inclination of the downward inclination is, for example, 10 degrees with respect to the horizontal plane. As a result, rainwater can flow down on the top surface 14 and be guided to the end side away from the side casing 25, so that it is difficult for rainwater to collect on the top surface 14. Therefore, corrosion of the motor cover 12 by rainwater and intrusion of rainwater from the gap between the motor cover 12 and the side casing 25 can be suppressed.

  Further, the bottom surface 15 of the motor cover 12 has a structure that is offset by 5 mm with respect to the end surface of the side surface, so that rainwater that has flowed through the motor cover 12 is cut off. A hole for penetrating the power cord 9 is provided in the bottom surface 15 of the motor cover 12, and a cord bush 16 is attached to the hole.

  Here, the motor cover 12 can be fixed by selecting which of the four sides of the side casing 25 having a substantially square shape is to be mounted with the top surface 14 facing the side. ing. More specifically, the motor cover fixing screw holes 11 formed in the side casing 25 are arranged on each of the four sides so as to surround the motor 8, and even if the motor cover 12 is shifted by 90 degrees, the through holes 12a And the motor cover fixing screw hole 11 overlap each other. Thus, since the mounting posture of the motor cover 12 can be selected, the top surface 14 is fixed upward regardless of the installation posture of the sirocco blower 1 (see also FIGS. 3-1 to 3-3). It becomes possible to do.

  FIG. 6 is a six-side view of the closing cover 13. The closing cover 13 is installed for the purpose of preventing rainwater from entering and collecting in the recesses of the scroll casing 10. As shown in FIGS. 3-1 to 3-3, the portions that become the recesses 30, 31, and 32 differ depending on the installation posture of the sirocco blower 1. The closing cover 13 can have different closing positions according to the installation posture of the sirocco blower 1 so that rainwater can be prevented from entering the recesses 30, 31, 32.

  The closing cover 13 has a main cover portion 13a and auxiliary cover portions 13b and 13c. The main cover part 13a closes the direction side perpendicular to the blowing direction among the side casings 25. That is, the main cover portion 13a has a substantially rectangular shape in plan view, and its long side is substantially equal to the length of one side of the side casing 25, and its short side is substantially equal to the distance between the side casings 25. ing.

  The auxiliary cover portion 13b is formed so as to be bent 90 degrees from the short side that becomes one end portion of the main cover portion 13a. The auxiliary cover portion 13b closes a portion that is above the outlet 5 on the outlet direction side among the side casings 25 in the upper outlet shown in FIG. 3-2 and the right outlet shown in FIG. 3-3. That is, the auxiliary cover part 13b closes between the side casings 25 at a portion where the outlet 5 is avoided on the outlet direction side.

  The auxiliary cover portion 13c is formed to be bent 90 degrees from the short side that is the other end of the main cover portion 13a. The auxiliary cover portion 13c closes a portion that is above the blowout port 5 on the blowout direction side among the side casings 25 in the left blowout shown in FIG. That is, the auxiliary cover part 13c closes between the side casings 25 at a portion where the outlet 5 is avoided on the outlet direction side.

  Among the spaces between the side casings 25, the shape of the space to be closed on both sides of the outlet 5 is different on the outlet direction side. Therefore, the auxiliary cover portion 13b and the auxiliary cover 13c have different projecting lengths from the main cover portion 13a, and can be covered with the closing cover 13 in either space on both sides of the air outlet 5.

  The closing cover 13 is fixed to the main body fixing hole 7 formed in the fixing flange 25a of the side casing 25 with a closing cover fixing bolt 18, a closing cover fixing nut 19, and a closing cover fixing washer 20. Is done.

  Here, since the side casing 25 has a substantially square shape, any side except the blowing direction of the side casing 25 can be obtained by aligning the formation positions of the main body fixing holes 7 with the sides except the blowing direction. Even so, it can be closed by the main cover portion 13a. And, as shown in FIGS. 3-1 to 3-3, by selecting the mounting position of the closing cover 13, the concave portion can be formed regardless of the installation posture of the sirocco blower 1 (see also FIGS. 3-1 to 3-3) The closing cover 13 can be attached so as to prevent rainwater from entering 30, 31, 32.

  Although not shown in the figure, when the sirocco blower 1 is installed in a downward blowing posture, it is difficult to form a recess for storing water, so the closing cover 13 is attached so that the upper portion is closed by the main cover portion 13a. That's fine.

  FIG. 7 is a 6-side view showing a modification of the closing cover 13. The closing cover 13 according to the modification is provided with an inclination. The inclination provided in the closing cover 13 is a substantially mountain-shaped inclination in which the central portion is high and the outer portion is low, and rainwater flows toward the outside of the main body.

  FIG. 8 is a diagram illustrating an outline of an installation example of the sirocco blower 1. The sirocco blower 1 is installed on the roof 22 of the building 21. The sirocco blower 1 performs ventilation by sucking indoor air from an exhaust port 23 provided in the room of the building 21 through a duct 24.

  As described above, the sirocco blower 1 according to the first embodiment can deal with blowing in three directions with one type of product, so that the degree of freedom of construction is increased for the user and the blowing direction is specified when ordering the product. Time and effort can be reduced. In addition, the manufacturer can reduce the type of product lineup. Thereby, cost can be suppressed.

  Further, since the casing 3 (side casing 25) has a substantially square shape, the installation area and the pitch of the mounting bolts coincide with each other even when any one of the three blowing directions is selected. Therefore, even if the installation posture of the sirocco blower 1 and the duct piping direction are changed during the construction work, it is possible to easily cope with it.

  Further, by adding outdoor installation covers such as the motor cover 12 and the blocking cover 13 as necessary, it is possible to cope with both indoor installation and outdoor installation with one type of product. For this reason, the degree of freedom of construction is increased for the user, and the product lineup can be reduced and the manufacturing process can be standardized for the manufacturer, as in the case of the correspondence in the blowing direction. Thereby, cost can be further reduced.

  As described above, the blower according to the present invention is useful for a blower that includes an impeller inside and has a suction port and a blow-out port.

1 Sirocco blower (blower)
2 Sirocco impeller (impeller)
3 Casing 4 Suction port 5 Air outlet 6a, 6b Duct connection flange 7 Body fixing hole 8 Motor 9 Power cord 10 Scroll casing 11 Motor cover fixing screw hole 12 Motor cover 12a Through hole 13 Closure cover 13a Main cover portion 13b, 13c Auxiliary cover portion 14 Top surface 15 Bottom surface 16 Cord bush 17 Motor cover fixing screw 18 Blocking cover fixing bolt 19 Blocking cover fixing nut 20 Blocking cover fixing washer 21 Building 22 Rooftop 23 Exhaust port 24 Duct 25 Side casing 25a Fixing flange 30, 31, 32 Recess X Rotating shaft

Claims (4)

A scroll casing in which an impeller that is rotatable around a predetermined rotation axis is housed inside, and a suction port and a blowout port are formed so that the suction direction and the blowout direction are substantially vertical;
A side casing provided so as to sandwich the scroll casing from both sides along the suction direction, and a cross-sectional shape viewed along the suction direction has a substantially square shape;
A motor provided outside the side casing and on the opposite side of the suction port to rotate the impeller;
Covering the motor, it was made possible to select and mount the mounting posture with the top surface facing to any of the four sides of the substantially square shape of the side casing as viewed along the suction direction. A motor cover;
A closing cover that is attachable so as to block between the side casings and prevents intrusion of rainwater, and
The closing cover is formed so as to be folded at an end portion of the main cover portion, a main cover portion closing a direction side perpendicular to the blowing direction among the side casings, and the side casing. An air blower characterized by having an auxiliary cover part that closes between the side casings while avoiding the air outlet on the air outlet direction side.   The blower according to claim 1, wherein a top surface of the motor cover has a downward slope toward a direction away from the side casing.   The blower according to claim 1 or 2, wherein the main cover portion is provided with a mountain-shaped slope having a central portion and a lower outer portion.   The said auxiliary | assistant cover part is provided in the both ends of the said main cover part, and mutually differs in length, The air blower as described in any one of Claims 1-3 characterized by the above-mentioned.

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