JP5786121B2 - Blower with silencer box for outdoor use - Google Patents

Description

  The present invention relates to a blower with a silencer box for outdoor use, which is used by incorporating a blower inside a silencer box such as a ventilation fan.

  2. Description of the Related Art Conventionally, outdoor fans are known in which a canopy or a mesh filter is installed with respect to an axial fan without a sound deadening box (see, for example, Patent Document 1).

  Hereinafter, the outdoor blower will be described with reference to FIG.

  As shown in FIG. 7, the body 101 includes an axial flow impeller 102 and a motor 103, and includes a canopy 104 and a mesh filter 105 that cover the entire periphery of the body 101 so as to prevent the intrusion of rainwater. The outdoor blower 108 is installed by providing an opening 107 that matches the size of the 101 and fixing the body 101 to the opening 107.

  When the motor 103 is operated, the air in the room 110 is exhausted to the outside 111 through the body 101, and the oil smoke 112 in the room 110 is collected through the drain pipe 114 as the oil 113 by the mesh filter 105. In the maintenance, the outdoor fan 108 is approached through the outdoor passage 115.

JP 2001-116308 A

  In such a conventional outdoor blower, it is necessary to install it near the center of the roof so that indoor contaminated air can be efficiently collected and ventilated. This approach was far away and a large space was required around the product. In order to check the built-in axial flow impeller and motor during maintenance, it is necessary to remove the large canopy and mesh filter that covers the entire product to prevent the intrusion of rainwater. Was necessary. Moreover, if the position of the outdoor blower is restricted near the center of the rooftop, there is a problem that it is difficult to effectively use a space such as greening the rooftop.

  Therefore, the present invention solves the above-mentioned conventional problems, and even when there is little maintenance space around the fuselage, the built-in centrifugal blower can be confirmed from the top surface, and the installation location of the main body is not regulated by duct ventilation An object is to provide a blower with a sound deadening box.

In order to achieve the above object, a blower with a silencing box for outdoor use of the present invention includes a centrifugal blower inside a box-shaped airframe that is provided with a body air inlet and an air body outlet facing each other, and the centrifugal fan is the airframe. A casing side plate provided with a discharge port facing the air outlet, a spiral scroll, and a casing suction port is provided on the side surface, and the impeller is driven by a motor fixed in the vicinity of the casing suction port to face the casing suction port. An inspection opening on one side of the airframe is provided in a part of the top surface of the airframe, a top cover that is larger than the inspection opening is arranged on the top surface, and ventilation is performed through a duct . The opening is made smaller than the width dimension of the airframe , thereby achieving the intended purpose.

According to the present invention, a centrifugal blower is provided inside a box-shaped airframe that is provided with a fuselage suction port and a fuselage air outlet facing each other, and the centrifugal blower has a discharge port that faces the airframe blowout port, a spiral scroll, and the like. A casing side plate provided with a casing suction port is provided on a side surface, the impeller is driven by a motor fixed in the vicinity of the casing suction port, and an inspection opening on one surface of the machine body facing the casing suction port is provided at the top of the machine body. A top cover that is larger than the inspection opening is provided on a part of the surface, and is arranged to ventilate through a duct. The inspection opening is made smaller than the width of the fuselage . Since the inspection opening is provided on the top surface of the fuselage, the built-in centrifugal blower can be confirmed from the top surface even when there is little maintenance space around the fuselage, and the top cover is attached to the inspection opening. Yo Also increased, by the inspection opening is smaller than the width dimension of the body, because it has an effect that it is possible to prevent intrusion of rainwater into the interior of the body from the inspection opening during outdoor use Maintenance can be done in a small space, it can be used outdoors by preventing rainwater from entering the inside of the aircraft, and there are no restrictions on the installation location of the main body due to duct ventilation. An air blower with an outdoor sound deadening box can be provided.

The perspective view of the air blower with the outdoor sound deadening box of Embodiment 1 of this invention Front view of blower with silencer box for outdoor use Side view showing the installation status of the outdoor blower with silencer box Temperature graph of the top cover part of the blower with silencer box for outdoor use The perspective view which shows the power-supply connection part of the blower with the silencing box for the outdoors The perspective view which shows the installation state of the air blower with the silencing box for the outdoors Side view of a conventional outdoor blower

A blower with a silencing box for outdoor use according to the present invention includes a centrifugal blower inside a box-shaped body provided with a body suction port and a body blower outlet facing each other, and the centrifugal blower is a discharge port facing the body blower outlet. A side opening of the casing side plate provided with a spiral scroll and a casing suction port, driven by a motor fixed to the vicinity of the casing suction port, and an opening for inspection on one surface of the machine body facing the casing suction port Provided on a part of the top surface of the airframe, a top surface cover that is larger than the inspection opening is disposed on the top surface, and ventilates through a duct, and the inspection opening is a width of the airframe. Since the inspection opening is provided on the top surface of the fuselage, the built-in centrifugal fan can be confirmed from the top surface even when the maintenance space around the fuselage is small. In addition, by making the top cover larger than the inspection opening and making the inspection opening smaller than the width of the aircraft, intrusion of rainwater into the aircraft from the inspection opening during outdoor use It can be used in the space where it can be used outdoors, and it can be used outdoors, and the ventilation of the main body is regulated by the duct ventilation. There is an effect that it can not be.

  In addition, the top surface of the top cover is configured to be inclined with respect to the top surface of the aircraft, and the top surface of the top cover is inclined with respect to the top surface of the aircraft. As the rainwater flows along the surface, the drainage performance is improved, and it is possible to suppress the generation of rust due to the accumulation of water on the top cover, so that the corrosion resistance of the top cover can be improved. Play.

  Also, the width of the top cover is made larger than the width of the fuselage, and ventilation openings on the bottom surface of the top cover are provided on both sides of the fuselage, which collide with the sides of the fuselage. Since the outside wind is guided to the ventilation opening along the fuselage and flows into the top cover, there is an effect that it is possible to prevent heat from being trapped inside the top cover due to solar radiation.

  In addition, the inspection plate that closes the inspection opening is provided on the lower surface of the top cover. By providing the inspection plate on the lower surface of the top cover, the airframe and the top cover can Since it has the effect | action that it can prevent that the rainwater from a clearance | gap penetrates into the inside of an airframe, there exists an effect that the invasion of rainwater to the inside of an airframe can further be prevented.

  In addition, the removal direction of the inspection plate fixing screw is directed toward the top surface, and the maintenance space around the fuselage is increased by directing the inspection plate fixing screw removal direction toward the top surface. Even when there are few, since it has the effect | action that the inspection board can be attached or detached from a top | upper surface, there exists an effect that a maintenance can be performed in few spaces.

  In addition, the power supply terminal block is provided on the bottom surface of the top cover, and the power supply terminal block is provided on the bottom surface of the top cover so that the power line and the lead wire from the motor can be directly connected. Compared with the case where waterproof taping work is performed after this, it has the effect of preventing rainwater from entering the power supply connection part while facilitating the power supply connection, thus facilitating power supply connectivity and rainwater to the power supply connection part. There is an effect that the intrusion of can be prevented.

Further, the power supply line stationary portion of the power connection terminal block is for the structure in which the arrangement of different pole of the power supply lead directly aligned with each other, the power supply line of the event of rain at the time of installation erroneous top cover fixing Even when adhering to the part, water flows down downward, so that it is difficult for water to collect in the power connection terminal block, and it is possible to prevent a short circuit of the power supply at the power connection terminal block.

  In addition, a terminal block cover that protects the power connection terminal block is provided on the lower surface of the top cover, so that dust from the gap between the fuselage and the top cover will remain in the power connection terminal block even during long-term use. Therefore, it is possible to prevent dust from adhering to the power connection terminal block.

  In addition, it is configured to have a base for installation work on the bottom of the aircraft facing the inspection opening, and the installation work base and bolts for mounting the base will not interfere with the maintenance space on the top surface of the machine. Since it is located at a place, it has an effect that workability can be improved even when the maintenance space is narrow, so that the workability of maintenance can be improved even in a small space.

  In addition, it is configured to have a drain pan with a drain water drain port on the bottom of the aircraft that faces the inspection opening, and the drain pipe connected to the drain water drain port is separated from the maintenance space on the top surface of the aircraft. Since it is located in a place where it does not get in the way, it has the effect that the workability can be improved even when the maintenance space is narrow, so that the workability of maintenance can be improved even in a small space.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
As shown in FIGS. 1, 2, 3, and 4, the blower with an outdoor sound deadening box according to the present embodiment is provided with a body suction port 1 and a body blower outlet 2 on opposite side surfaces of a box-shaped body 3. ing. The airframe 3 is provided with a suction adapter 5 that connects the suction side duct 4 to the airframe suction port 1, and the airframe outlet 2 is provided with a blowout adapter 7 that connects the blowout side duct 6. Inside the airframe 3, there is an air passage 8 from the airframe inlet 1 to the airframe outlet 2, and a centrifugal blower 9 is provided in the airway 8. The centrifugal blower 9 is provided with a casing side plate 13 provided with a discharge port 10, a spiral scroll 11, and a casing suction port 12 facing the fuselage outlet 2 on the side surface. The impeller 14 is configured to be driven by a motor 15 fixed in the vicinity of the casing suction port 12 and to send air through the suction side duct 4 and the blowout side duct 6. The inspection opening 16 is provided on the top surface of the airframe 3 and is covered with a top surface cover 17 larger than the inspection opening 16. The casing suction port 12 of the centrifugal blower 9 faces the top surface of the body 3, that is, the inspection opening 16.

  The top surface of the top cover 17 is disposed so as to be inclined with respect to the top surface of the body 3. The removal direction 19 of the top cover fixing screw 18 of the top cover 17 is directed to the top surface direction.

  Further, the width dimension W <b> 2 of the top cover 17 is made larger than the width dimension W <b> 1 of the body 3, and ventilation openings 27 on the bottom surface of the top cover 17 are provided on both side surfaces of the body 3. Then, the outside wind 28 colliding with the side surface of the body 3 is guided to the ventilation opening 27 along the body 3 and is passed through the top cover 17, and an air flow 29 inside the cover is generated.

  An inspection plate 20 that closes the inspection opening 16 is provided on the lower surface of the top cover 17. The removal direction 22 of the inspection plate fixing screw 21 of the inspection plate 20 is directed to the top surface direction.

  As shown in FIG. 3, the airframe 3 of the outdoor blower with a sound deadening box is constructed on the roof 30 by connecting the air intake side duct 4 to the airframe inlet 1 and the air outlet duct 6 to the airframe outlet 2. The airframe 3 incorporates an airframe inlet 1 on the suction side, an airframe outlet 2 on the blowout side, a centrifugal blower 9 inside the airframe 3, and a top cover 17 on the top surface. When the centrifugal blower 9 is operated, the air in the room 31 is exhausted from the suction side duct 4 to the outdoor side 32 through the blowout side duct 6. A blow-out grill 33 for preventing intrusion of wind and rain is attached to the end of the blow-out side duct 6, and maintenance is performed by approaching the airframe 3 through the outdoor passage 34.

With the above configuration, the inspection opening 16 is provided on the top surface of the airframe 3, so that the built-in centrifugal blower 9 can be confirmed from the top surface even when the maintenance space around the airframe 3 is small. Further, by making the top cover 17 larger than the inspection opening 16, it is possible to prevent rainwater from entering the inside of the airframe 3 from the inspection opening 16 when used in the outdoor 32, and duct ventilation. Thus, there is no restriction on the installation location of the airframe 3 as the main body.

  In addition, since the top surface of the top cover 17 is inclined with respect to the top surface of the airframe 3, rainwater flows along the inclination of the top cover 17 and drainage is improved, and water accumulates in the top cover 17. Since it becomes difficult, generation | occurrence | production of rust can be suppressed.

  Further, since the removal direction 19 of the fixing screw 18 of the top cover 17 is directed to the top surface direction, the top cover 17 can be detached from the top surface even when the maintenance space around the machine body 3 is small.

  Here, the operation of the top cover 17 will be described. When solar radiation is applied to the top cover 17, the surface temperature of the top cover 17 rises. However, when an outside air flow (outside wind 28) is generated, the outside wind 28 collides with the side surface of the airframe 3, and a cover internal passing air flow 29 is generated in the top cover 17. Due to the generation of the air flow 29 inside the cover, the air inside the top cover 17 is mixed with the surrounding air, and the temperature rise inside the top cover 17 is suppressed to be lower than the temperature rise on the surface of the top cover 17.

  FIG. 4 shows a result of measuring the temperature of each part of the top cover when the product is installed outdoors in summer. The horizontal axis is the top cover ambient temperature (outside air temperature), and the average value is plotted in three categories of less than 35 ° C., 35 ° C. or more and less than 40 ° C. and 40 ° C. or more. The surface temperature of the top cover is significantly higher than the ambient temperature of the top cover due to solar radiation, but the temperature inside the top cover is lower than that (when the ambient temperature of the top cover is 41.2 ° C). The top cover surface temperature is 60.6 ° C., and the top cover internal temperature is 54.9 ° C.). Also from this, the effect of the airflow passing through the cover is clear. The test conditions are: Aircraft width of 362mm, Top cover width of 472mm, Aircraft color is gray, 22 days from August 3 to September 7, 2010, Aichi, Japan Conducted in Kasugai City.

  In the maintenance space inside the top cover 17, lead wires from the built-in blower and terminal block for power connection are arranged, but the heat-resistant temperature range for these parts is defined, and the temperature inside the top cover 17 is It is effective to suppress this when used outdoors. Further, when the installation location of the airframe 3 is in the vicinity of the wall surface of the building, the collision amount of the outside wind 28 tends to decrease, but the width dimension W2 of the top cover 17 is made larger than the width dimension W1 of the airframe 3. And the effect which receives a wind becomes large by enlarging the part which became hook shape, and the cover internal passage airflow 29 can be increased effectively.

  Further, by providing the inspection plate 20 on the lower surface of the top cover 17, it is possible to prevent rainwater from the gap between the airframe 3 and the top cover 17 from entering the inside of the airframe 3 even during strong wind and rain.

  Further, since the removal direction 22 of the fixing screw 21 for the inspection plate 20 is directed to the top surface direction, the inspection plate 20 can be detached from the top surface even when the maintenance space around the machine body 3 is small.

  As described above, according to the blower with the silencer box for outdoor use according to the first embodiment of the present invention, maintenance can be performed in a small space, rain water can be prevented from entering the inside of the fuselage 3, and the temperature inside the top cover 17 can be prevented. It can be used outdoors while suppressing the rise.

  In addition, since the top cover 17 is provided to be inclined, it is difficult for water to accumulate, and the corrosion resistance of the top cover 17 can be improved.

In addition, since the centrifugal blower 9 is covered with the airframe 3, it is possible to reduce noise to the outside as compared to the conventional outdoor blower and to reduce the operating noise of the blower when the periphery of the rooftop 30 is a residence. You can also answer your request.

  In the first embodiment, the top cover 17 and the inspection plate 20 are configured as separate members. However, the top surface cover 17 and the inspection plate 20 may be integrally formed. May be omitted.

In FIG. 5, the terminal block 35 for power supply connection of the blower with the outdoor sound deadening box of this Embodiment is shown. The power connection terminal block 35 is provided on the lower surface of the top cover 17 and connects the power cord 36 from the power source and the lead wire 37 from the motor 15. Power line fixing part 38 is configured to place the different pole of the power pole 39, 40, 41 lead directly aligned with each other. A terminal block cover 42 that protects the power connection terminal block 35 is provided on the lower surface of the top cover 17.

  With the above configuration, the power connection terminal block 35 is provided on the lower surface of the top cover 17, so that the power connection is compared with the case where the waterproof taping operation is performed after the power line 36 and the lead wire 37 from the motor are directly connected. Intrusion of rainwater into the power connection can be prevented.

Further, the power supply wire fixing portion 38 of the power connection terminal block 35 by electrode 39, 40, 41 of the power supply is a lead directly alongside each other, the emergency rain at the time of erroneous installation of the top cover 17 Even when adhering to the power line fixing portion 38, water flows downward, so that water does not collect in the power connection terminal block 35, and a short-circuit state between the power supply different polarities can be prevented.

  Further, by providing the terminal block cover 42 on the lower surface of the top cover 17, it is possible to prevent dust from the gap between the machine body 3 and the top cover 17 from adhering to the power connection terminal block 35 even when used for a long period of time. it can.

  FIG. 6 is a diagram showing the installation of the blower with the outdoor sound deadening box of the present embodiment. As shown in FIG. 6, the blower with the outdoor sound deadening box includes an installation work base 43 on the bottom surface of the airframe 3 facing the inspection opening 16 and is fixed by the base installation bolts 44. Further, a drain pan 46 provided with a drain water drain port 45 is provided on the bottom surface of the machine body 3, and drain water is drained from a drain pipe 47.

  With the above configuration, the installation work frame 43 and the work frame installation bolts 44 are removed from the maintenance space on the top surface of the machine body 3 by providing the installation work frame 43 on the bottom surface of the machine body 3 facing the inspection opening 16. Because it is located in a place where it does not get in the way, it can improve workability even when the maintenance space is small.

  Further, by providing the drain water drainage port 45 on the bottom surface of the airframe 3 facing the inspection opening 16, the drain pipe 47 connected to the drain water drainage port 45 is separated from the maintenance space on the top surface of the airframe 3. Because it is located in a place where it does not get in the way, workability can be improved even when the maintenance space is narrow.

  As described above, according to the blower with the outdoor sound deadening box according to the third embodiment of the present invention, the workability of maintenance can be improved even in a small space.

  In addition to the purpose of air conveyance such as ventilation blower equipment, the equipment can be cooled using the exhaust structure, and can be applied to the use of equipment equipment that can be installed compactly.

DESCRIPTION OF SYMBOLS 1 Airframe inlet 2 Airframe outlet 3 Airframe 4 Suction side duct 6 Air outlet side duct 9 Centrifugal blower 10 Outlet 11 Scroll 12 Casing inlet 13 Casing side plate 14 Impeller 15 Motor 16 Inspection opening 17 Top cover 19 Removal direction 20 Inspection plate 21 Inspection plate fixing screw 22 Removal direction 27 Ventilation opening 35 Power supply terminal block 38 Power line fixing part 39 Pole 40 Pole 41 Pole 42 Terminal block cover 43 Installation work mount 45 Drain water drain port 46 Drain pan

Claims (10)

A centrifugal blower is provided inside a box-shaped airframe provided with the airframe suction port and the airframe air outlet facing each other, and the centrifugal air blower is provided with a discharge port, a spiral scroll, and a casing air intake port opposed to the airframe air outlet. A casing side plate is provided on the side surface, the impeller is driven by a motor fixed in the vicinity of the casing suction port, and an inspection opening on one side of the body facing the casing suction port is provided on a part of the top surface of the body. An outdoor cover characterized in that a top cover larger than the inspection opening is arranged on the top surface and blown through a duct, and the inspection opening is smaller than the width of the airframe. Blower with silencer box. The blower with an outdoor sound deadening box according to claim 1, wherein the top surface of the top surface cover is arranged to be inclined with respect to the top surface of the airframe. The width dimension of the top cover is made larger than the width dimension of the fuselage, and ventilation openings on the bottom surface of the top cover are provided on both sides of the fuselage. Fan with silencer box for outdoor use. The blower with an outdoor sound deadening box according to any one of claims 1 to 3, wherein an inspection plate for closing the inspection opening is provided on a lower surface of the top cover. The blower with an outdoor sound deadening box according to claim 4, wherein the removal direction of the fixing screw for the inspection plate is directed toward the top surface. The blower with an outdoor sound deadening box according to any one of claims 1 to 5, wherein a terminal block for power connection is provided on the lower surface of the top cover. A centrifugal blower is provided inside a box-shaped airframe provided with the airframe suction port and the airframe air outlet facing each other, and the centrifugal air blower is provided with a discharge port, a spiral scroll, and a casing air intake port opposed to the airframe air outlet. A casing side plate is provided on the side, and the impeller is driven by a motor fixed in the vicinity of the casing suction port, and the inspection opening on one side of the machine body facing the casing suction port is in front.
Provided on the top surface of the machine body, a top surface cover that is larger than the inspection opening is arranged on the top surface, and is configured to blow air through a duct.
A power supply terminal block is provided on the bottom surface of the top cover.
Power connection terminal block of the power supply line stationary portion, wherein the to that shop external deadening box that it has a structure in which the arrangement of different pole of the power supply lead directly aligned with each other. The blower with an outdoor sound deadening box according to claim 6 or 7, wherein a terminal block cover for protecting the power connection terminal block is provided on a lower surface of the top cover. The blower with an outdoor sound deadening box according to any one of claims 1 to 8, wherein an installation work frame is provided on the bottom surface of the airframe facing the inspection opening. The blower with an outdoor sound deadening box according to any one of claims 1 to 9, wherein the blower is provided with a drain pan provided with a drain water drain port on a bottom surface of the airframe facing the inspection opening.

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