JP2011075201A - Air blower and drying device using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve drying efficiency of clothing in an air blower. <P>SOLUTION: The air blower includes a body case 3 having a suction port 1 and a blowout port 2 and an air blowing means 4 arranged within the body case 3. The air blowing means 4 is formed by an impeller 5, a motor 6 driving the impeller 5 and a fan casing 7 supplying air sent from the impeller 5 to the blowout port 2. Wind direction plates 8 uniformizing wind speed distribution and through-holes 9 penetrated through the wind direction plates 8 are provided within the fan casing 7. A wind direction change unit 10 is provided within the through-hole 9. The wind direction change unit 10 includes a wind direction change plate 11 and a rotating shaft 12 rotatably supporting the wind direction change plate 11. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a blower used for an air outlet of an air conditioner such as a dehumidifier and a drying device using the blower.

  Conventionally, this type of blower has been designed to be able to change the blowing range according to the clothes drying scene by rotating a shaft provided with a plurality of wind direction plates on a rotatable shaft. There is known one that can reduce the drying time of clothes and clothes (for example, see Patent Document 1).

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

  As shown in FIG. 10, a wind direction changing unit 104 in which a plurality of wind direction changing plates 105 are attached to a rotary shaft 108 is provided immediately below a blowout port 102 provided in the upper part of the main body 101.

  Then, the wind direction changing unit 104 is rotatably supported by the small motor 106, and the air direction changing unit 104 is rotated to change the air blowing range of the dry air.

JP 2007-170711 A

  In such an air blower, since the wind speed distribution in the fan casing cannot be made uniform, a range in which air cannot be blown occurs especially for clothes that have been dried in large quantities and the drying efficiency is poor. there were.

  Therefore, the present invention makes it possible to change the air blowing range according to the amount of clothing, and further uniform the wind speed distribution in the fan casing so that no air blowing range occurs even if the air blowing range is changed. The purpose is to improve the drying efficiency of clothing.

  And in order to achieve this object, the present invention comprises a main body case having a suction port and an outlet, and a blower means in the main body case. The blower means has an impeller, a motor for driving the impeller, , Formed by a fan casing that supplies air sent from the impeller to the air outlet, and provided with a wind direction plate for uniforming the wind speed distribution in the fan casing, and a through hole penetrating the wind direction plate. The wind direction changing unit is equipped with a wind direction changing plate and a blower equipped with a rotation shaft that rotatably supports the wind direction changing plate, thereby achieving the intended purpose. To do.

  According to the present invention, a main body case having a suction port and an air outlet, and air blowing means are provided in the main body case. The air blowing means is an impeller, a motor for driving the impeller, and air sent from the impeller. Is formed by a fan casing that supplies air to the air outlet, and a wind direction plate that equalizes the wind speed distribution in the fan casing and a through hole that penetrates the wind direction plate are provided, and a wind direction changing unit is provided in the through hole, The wind direction changing unit includes a wind direction changing plate and a rotating shaft that rotatably supports the wind direction changing plate, so that the air blowing range can be changed according to the amount of clothing, and the inside of the fan casing. When changing the air blowing range by making the air velocity distribution uniform, it is possible to improve the drying efficiency of clothing by preventing the area that cannot blow even if the air blowing range is expanded. One in which it is bet.

  That is, in the air blowing operation, the air sucked from the suction port by the impeller rotated by driving the motor is blown to the air outlet through the fan casing. Here, the blown air is blown from the wind direction plate in the fan casing to the outlet through the wind direction changing plate of the wind direction changing unit. At this time, the wind sent from the impeller spreads in the casing while exhibiting the effect of adhering to a plurality of wind direction plates provided in the casing, thereby uniforming the wind speed distribution. The uniformed wind passes through the wind direction changing plate of the wind direction changing unit, so that the wind can be applied to a range where the air cannot be blown while keeping the wind speed uniform.

  By these results, the effect of improving the drying efficiency of clothing can be obtained.

  Further, according to the present invention, the main body case having the suction port and the air outlet, and the air blowing means are provided in the main body case, and the air blowing means is sent from the impeller, the motor for driving the impeller, and the impeller. The air direction plate for uniforming the wind speed distribution in the fan casing and a notch with the air outlet side as a recess are provided in the air direction plate. The wind direction changing unit is provided with a wind direction changing plate and a rotation shaft that rotatably supports the wind direction changing plate. Further, by making the air velocity distribution in the fan casing uniform, it is possible to obtain an effect of improving the drying efficiency of the clothes by allowing the air to be blown in a range where the air cannot be blown. Furthermore, even when the air outlet is provided not only on the upper surface but also on the side surface, the wind speed distribution in the fan casing can be made uniform, so that the effect of increasing the degree of freedom in design can be obtained.

Sectional perspective view of the air blower of Embodiment 1 of this invention Sectional drawing of the fan casing of Embodiment 1 of this invention Sectional perspective view at the time of enlarging the wind direction of the wind direction change unit of Embodiment 1 of this invention Sectional drawing of the fan casing at the time of giving the freedom degree of design of Embodiment 1 of this invention The expanded sectional view of the wind direction board and wind direction change unit of Embodiment 1 of this invention Sectional perspective view at the time of rotating the wind direction change unit of Embodiment 1 of this invention 180 degrees Sectional perspective view at the time of rotating the wind direction change unit of Embodiment 1 of this invention 90 degrees Sectional drawing of the wind direction board and fan casing of Embodiment 1 of this invention Sectional perspective view of the drying apparatus according to Embodiment 1 of the present invention. The perspective view which shows the blowing part of the conventional air blower

  According to a first aspect of the present invention, a blower includes a main body case having a suction port and an outlet, and a blower means in the main body case. The blower means includes an impeller, a motor for driving the impeller, and a blade. It is formed by a fan casing that supplies air sent from the car to the air outlet, and a wind direction plate that equalizes the wind speed distribution and a through hole that penetrates the wind direction plate are provided in the fan casing. The wind direction changing unit includes a wind direction changing plate and a rotation shaft that rotatably supports the wind direction changing plate. This makes it possible to change the air blowing range according to the amount of clothing, and even when changing the air blowing range by making the air velocity distribution in the fan casing uniform, there is a range where air can not be blown even if the air blowing range is expanded. By doing so, there is an effect of improving the drying efficiency of clothing.

  Also, a main body case having a suction port and an air outlet, and a blower means are provided in the main body case. The air blower means an impeller, a motor for driving the impeller, and air sent from the impeller to the air outlet. And a wind direction plate for uniforming the wind speed distribution in the fan casing, and a notch portion having a recess on the outlet side in the wind direction plate. A wind direction changing unit is provided in the notch portion. The wind direction changing unit includes a wind direction changing plate and a rotating shaft that rotatably supports the wind direction changing plate. This makes it possible to change the air blowing range according to the amount of clothing, and even when changing the air blowing range by making the air velocity distribution in the fan casing uniform, there is a range where air can not be blown even if the air blowing range is expanded. By doing so, there is an effect of improving the drying efficiency of clothing. Furthermore, even when the air outlets are provided not only on the upper surface but also on the side surfaces, the wind speed distribution in the fan casing can be made uniform, so that the degree of freedom in design is increased.

  Further, a plurality of wind direction plates are provided. Thereby, since the wind speed distribution in a fan casing can be equalized and the air from a blower outlet can be equalized, there exists an effect which improves the drying efficiency of clothing.

  In addition, the wind direction plate is configured to have a different angle to the air outlet side. Thereby, since the ventilation range can be expanded, there exists an effect which improves the drying efficiency of clothing.

  In addition, the wind direction change plate has a substantially same projected area in the rotation axis direction. Thereby, even when the wind direction changing unit is rotated, the air blowing range can be switched without the wind direction changing plates being in contact with each other, so that the effect of improving the drying efficiency of the clothes is achieved.

  The wind direction changing unit has a circular projected outer shape in the rotation axis direction. As a result, even when the wind direction changing unit is rotated, the wind can be applied to a range where the air cannot be blown without leaking the wind, so that the effect of improving the drying efficiency of the clothes is achieved.

  The wind direction changing unit is provided with a rotating means for rotating the rotating shaft. Thereby, since the ventilation range can be automatically changed according to the quantity of clothing, there exists an effect which improves the drying efficiency of clothing.

  Further, the wind direction changing unit is configured to be switchable between a shape that expands the air blowing range by rotating the rotation shaft, a shape that reduces the air blowing range, and a shape that blows out in the air blowing range intermediate between expansion and reduction. . Thereby, since the ventilation range can be changed from the case where many clothes are dried to the case where there are few clothes, there exists an effect which improves the drying efficiency of clothes.

  Further, the wind direction plate is configured to have a linear shape that makes the wind speed distribution in the fan casing uniform in the vicinity of the impeller. As a result, the wind from the impeller can be attached so as not to generate vortices, so that the wind speed distribution in the fan casing can be made uniform, thereby improving the drying efficiency of clothing. .

  The wind direction plate has a curved shape that spreads the air in the fan casing over a wide range in the vicinity of the air outlet. As a result, the direction of the wind can be changed while attaching the uniformed wind in the fan casing to the wind direction plate, so that the wind can be applied to a range where the air cannot be blown, and the effect of improving the drying efficiency of the clothes is achieved. .

  Further, the wind direction plate is configured such that the thickness of the plate gradually decreases from the outlet side to the impeller side. As a result, it is possible to reduce the air path resistance in the vicinity of the impeller and suppress the decrease in the air volume, and there is an effect of improving the drying efficiency of the clothes.

  Further, the wind direction change plate not provided in the through hole in the wind direction plate is configured to be provided in a portion where the wind speed distribution is substantially uniform in the fan casing. As a result, it is possible to effectively widen the air blowing range in a state in which the air path resistance is reduced, and thus the effect of improving the drying efficiency of the clothes is achieved.

  Further, when the wind direction changing unit is in a position to expand the air blowing range, the inclination angle of the wind direction changing plate located on the tongue side of the fan casing and the discharge angle of the fan casing are substantially matched. is there. As a result, it is possible to reduce the air path resistance and suppress the decrease in the air volume, and thus the effect of improving the drying efficiency of the clothes is achieved.

  Further, when the wind direction changing unit is in a position to reduce the air blowing range, the gap between the wind direction changing plate located closest to the tongue portion of the fan casing and the tongue portion of the fan casing is reduced to reduce the leakage of the wind. It is set as the structure which prevents. As a result, it is possible to suppress a decrease in the air volume, and the effect of improving the drying efficiency of the clothes is exhibited.

  Moreover, it is a drying apparatus provided with the heater which dries air, and the ventilation apparatus in any one of Claims 1-14 which blows off the air of this heater. As a result, it is possible to blow out dry air, and the effect of improving the drying efficiency of the clothes is achieved.

  Hereinafter, the present embodiment will be described with reference to the accompanying drawings.

(Embodiment 1)
The air blower of this embodiment is demonstrated referring FIG.

  As shown in FIG. 1, a main body case 3 having a suction port 1 and an air outlet 2 and an air blowing means 4 provided in the main body case 3 are provided. The air blowing means 4 includes an impeller 5 and an impeller 5. And a fan casing 7 for supplying air sent from the impeller 5 to the air outlet 2.

  Further, a wind direction plate 8 for uniforming the wind speed distribution in the fan casing 7 and a through hole 9 penetrating the wind direction plate 8 are provided, and a wind direction changing unit 10 is provided in the through hole 9. Is provided with a wind direction changing plate 11 and a rotary shaft 12 that rotatably supports the wind direction changing plate 11, thereby improving the drying efficiency of the clothes.

  The air blowing means 4 can be appropriately selected according to the intake air volume and discharge pressure of the intended use such as a sirocco fan, turbo fan, radial fan, and cross flow fan.

  Here, the air blowing operation will be described. As shown in FIG. 1, when the air blowing range is expanded, the air taken in from the suction port 1 is blown to the air outlet 2 through the fan casing 7 by the impeller 5 rotated by driving the motor 6. The blown air is blown from the wind direction plate 8 in the fan casing 7 to the air outlet 2 through the wind direction changing plate 11 of the wind direction changing unit 10. At this time, the wind sent from the impeller 5 spreads in the fan casing 7 while adhering to the plurality of wind direction plates 8 provided in the fan casing 7, thereby making the wind speed distribution uniform. The uniformed wind passes through the wind direction changing plate 11 of the wind direction changing unit 10, so that the wind can be applied to a range where the air cannot be blown while keeping the wind speed uniform.

  Although depending on the distance between the impeller 5 and the air outlet 2 and the size of the fan casing 7, in the state where the wind direction plate 8 is not provided, most of the flow is opposite to the side surface on which the tongue portion 19 of the fan casing is located. Therefore, there is almost no flow along the surface of the fan casing on the tongue portion 19 side, and no air is sent from the wind direction changing plate 11. That is, when the blowing range is expanded as shown in FIG. Therefore, the wind direction plate 8 is provided along the flow direction of the fan casing 7 in order to bring a part of the main flow biased to the opposite side of the side surface where the tongue portion 19 of the fan casing is located toward the tongue portion 19 side of the fan casing. Further, the flow is made uniform toward the tongue portion 19 side of the fan casing while adhering to the side surface of the wind direction plate 8 so as to divide the main flow.

  In other words, the air blowing range can be changed according to the amount of clothing, and when the air blowing range is changed by making the air velocity distribution in the fan casing uniform, there is no range where air cannot be blown even if the air blowing range is enlarged. By doing so, the drying efficiency of clothing can be improved.

  The wind direction changing unit 10 includes a rotating unit 15 that rotates the rotating shaft 12. The rotation means 15 may use a link mechanism in addition to the motor 6. Specifically, by controlling the rotary shaft 12, the wind direction range of the wind direction changing unit 10 can be changed according to the amount of clothes and the length of clothes being dried, so the air blowing range corresponding to the drying scene is set. Therefore, the drying efficiency of clothes can be improved.

  Furthermore, when not using the rotation means 15, the ventilation range can be set by rotating the rotating shaft 12 by manual operation.

  Further, a plurality of wind direction plates 8 are provided. Thereby, the air sent by the impeller 5 can be attached to the wind direction plate 8, and the wind speed distribution can be made uniform in the fan casing 7. Since the uniformed air can easily change the air blowing range by the wind direction changing plate 11 at the subsequent stage, the air from the air outlet 2 can be made uniform, and the effect of improving the drying efficiency of the clothes Play.

  Moreover, the wind direction board 8 is set as the structure from which the angle to the blower outlet 2 side differs. Thereby, since the air blowing range can be expanded by utilizing the adhesion effect of the air to the wind direction plate 8, it is possible to reduce the decrease in the air volume due to the turbulence of the air flow, thereby improving the drying efficiency of the clothes. There is an effect.

  Next, the cross section of the fan casing 7 will be described with reference to FIG.

  As shown in FIG. 2, the wind direction changing unit 10 has a circular projected outer shape in the direction of the rotation axis 12. Specifically, the wind direction changing unit 10 is formed by cutting the wind direction plate 8 into a cylindrical shape and forming the wind direction changing plate 11 with a clearance of about 5 mm or less, for example, 2 to 3 mm, from the wind direction plate 8. The rotary shaft 12 can be rotated while keeping the clearance between the wind direction change plate 11 and the wind direction change plate 11 to a minimum. For this reason, when expanding the ventilation range, the wind adhering to the wind direction plate 8 can be guided to the wind direction changing plate 11 without leaking. That is, since the wind from the impeller 5 is made uniform by the wind direction plate 8 and air can be uniformly blown from the entire outlet 2 according to the direction of each wind direction change plate without leaking the wind, the drying efficiency of the clothes can be improved. it can.

  The wind direction changing plate 11 has substantially the same projected area. Thereby, even when the wind direction changing unit 10 is rotated, the air blowing range can be switched smoothly without the wind direction changing plates 11 being in contact with each other, and thus the effect of improving the drying efficiency of the clothes is achieved.

  The wind direction plate 8 is separated from the impeller by about 30 mm. If the distance is too close, the rotational speed of the fan is reduced and the pressure is lost. Accordingly, the wind speed of the wind from the impeller 5 can be adhered to the wind direction plate 8 without being lowered by the generation of vortex or turbulence or without disturbing the flow. Therefore, the drying efficiency of the clothes can be improved.

  Next, the case where the wind direction of a wind direction change unit is expanded is demonstrated using FIG.

  As shown in FIG. 3, when the wind direction changing unit 10 is at a position where the blowing range is expanded, the inclination angle of the wind direction changing plate 11 a located on the tongue portion 19 side of the fan casing and the angle of the discharge portion 20 of the fan casing. Are substantially matched. Specifically, in the fan casing 7, the wind of the impeller 5 adheres to the tongue portion 19 of the fan casing and flows to the wind direction changing plate 11 of the wind direction changing unit 10 while maintaining the adhesion. Since the blowing range can be expanded in a state where there is little decrease, the drying efficiency of the clothes can be improved.

  Next, a fan casing in a case where design freedom is given will be described with reference to FIG.

  As shown in FIG. 4, the air blower of the present embodiment includes a main body case 3 having a suction port 1 and an air outlet 2, and an air blowing means 4 provided in the main body case 3. An impeller 5, a motor 6 that drives the impeller 5, and a fan casing 7 that supplies air sent from the impeller 5 to the air outlet 2 are formed.

  Further, a wind direction plate 8 for uniforming the wind speed distribution in the fan casing 7, and a notch 13 having a recess on the air outlet side are provided in the wind direction plate 8, and a wind direction changing unit 10 is provided in the through hole 9. The wind direction changing unit 10 includes a wind direction changing plate 11 and a rotating shaft 12 that rotatably supports the wind direction changing plate 11. Specifically, a concave through-hole 9 is provided so as to pass through the end of the air outlet 2 of the wind direction plate 8, and the wind direction changing unit 10 is provided so as to be accommodated in the notch 13 of the recess.

  When the air blowing range is widened, the air direction changing plate 11 and the air direction plate 8 of the air direction changing unit 10 have a shape in which the inclinations are substantially the same, thereby making the air velocity distribution in the fan casing 7 uniform and making it impossible to blow air. The wind can be applied, and the effect of improving the drying efficiency of the clothes is achieved. Further, at this time, even when the air outlet 2 is provided not only on the upper surface but also on the side surface, the wind speed distribution in the fan casing 7 can be made uniform, thereby increasing the degree of freedom in designing the air outlet and the grill member 14. Play.

  Next, the wind direction plate and the wind direction changing unit will be described with reference to FIG.

  As shown in FIG. 5, the wind direction plate 8 has a curved shape 17 that widens the air in the fan casing 7 in the vicinity of the air outlet 2. In addition, according to the range which spreads a wind, not only the curved shape 17 which has a curvature but the linear shape 16 which has an inclination may be sufficient. Thus, the direction of the wind can be changed while adhering the uniformed wind in the fan casing 7 to the wind direction plate 8, so that the wind can be applied to an area where the air cannot be blown, and the drying efficiency of the clothes is improved. Can do.

  Further, the wind direction plate 8 has a plate thickness that gradually decreases from the outlet 2 side to the impeller 5 side. As a result, it is possible to reduce the air path resistance in the vicinity of the impeller 5 and suppress a decrease in the air volume, and improve the drying efficiency of the clothes.

  Next, the case where the wind direction changing unit is rotated 180 ° from the state shown in FIG. 3 will be described with reference to FIG.

  As shown in FIG. 6, the wind direction changing unit 10 is configured to be able to switch from a shape that expands the air blowing range by rotating a rotating shaft 12 to a concentrated shape.

  Further, when the wind direction changing unit 10 is at a position where the air blowing range is concentrated, the distance between the wind direction changing plate 11 located closest to the tongue portion 19 of the fan casing and the tongue portion 19 of the fan casing is reduced. The structure prevents the leakage of wind. Specifically, when the air direction changing unit 10 is in a state in which the air blowing range is reduced in the fan casing 7, the wind of the impeller 5 adheres to the tongue of the fan casing 7, and the air direction changing unit 10 remains attached. Since the air flow changes to the wind direction changing plate 11b located closest to the tongue portion 19 of the fan casing, the air flow can be reduced by reducing the air flow reduction, so that the drying efficiency of the clothes when the clothes are concentrated and dried Can be improved.

  Further, a case where the wind direction changing unit is rotated by 90 ° from the state shown in FIG. 3 will be described with reference to FIG.

  As shown in FIG. 7, by rotating the wind direction changing unit 10 by 90 °, it is possible to switch from a shape that expands the air blowing range to a shape that blows out right above. It is also possible to switch from a shape that concentrates the air blowing range to a shape that blows out directly above.

  In this way, the wind direction changing unit 10 can change the wind direction range according to the amount of clothes and the length of the clothes being dried, so the air blowing range can be set according to the drying scene, thus improving the drying efficiency of clothes. Can be made.

  Even when the wind direction changing unit 10 is installed near the center of the wind direction changing plate 11 or when it is provided on the impeller 5 side of the wind direction changing plate 11, it is possible to change the blowing range. However, it is desirable to provide the wind direction plate 8 near the outlet 2 because the effect of uniforming the wind speed distribution by the wind direction plate is exhibited, and it is effective for changing the air blowing range and the air path pressure loss can be reduced.

  Further, the wind direction changing plate 11 not provided in the through hole 9 in the wind direction plate 8 is configured to be provided in a portion where the wind speed distribution is substantially uniform in the fan casing 7. Specifically, in the fan casing 7, the wind of the impeller 5 is made uniform through the wind direction plate 8, and the air blowing range is changed by the wind direction changing plate 11. At this time, since the wind direction plate 8 contributes to uniforming the wind speed distribution in the fan casing 7, the wind direction plate 8 is not necessarily required when the wind speed in the fan casing 7 is already kept uniform. Therefore, the number of the wind direction change plates 11 may be larger than that of the wind direction plate 8. Further, when referring to the wind path resistance, it is better that the number of the wind direction plates 8 is as small as possible. Therefore, by reducing the number of the wind direction plates 8 near the impeller side as much as possible and reducing the pressure loss, it is possible to dry the clothes. Efficiency can be improved.

  Hereinafter, the wind direction plate and the fan casing will be described with reference to FIG.

  As shown in FIG. 8, the wind direction plate 8 is formed by forming one wind direction plate 8 from two members and attaching the respective members to the members of the fan casing 7 and the lid 18 of the fan casing. There is a method of molding by making and removing the mold from both sides.

  Hereinafter, the drying apparatus will be described with reference to FIG.

  As shown in FIG. 9, it is a drying apparatus provided with the heater 21 which dries air, and the air blower of any one of Claims 1-11 which blows off the air of this heater 21. As shown in FIG. It should be noted that the heater can be appropriately selected depending on the amount of heat input to the object to be dried such as a nichrome heater, a PTC heater, or a ceramic heater. Specifically, the air sucked from the suction port 1 is heated by passing through the heater 21, and the heated air is sent into the fan casing 7. In the fan casing 7, the air is uniformized by the wind direction plate 8, and the uniformed air can be changed in accordance with the amount of clothing by the wind direction changing plate 11 and can be uniformly blown from the entire outlet 2. Drying efficiency can be improved.

  As described above, the present invention includes a main body case having a suction port and an outlet, and air blowing means in the main body case. The air blowing means is sent from the impeller, a motor for driving the impeller, and the impeller. A fan casing for supplying the air to the outlet, and a wind direction plate for uniforming the wind speed distribution in the fan casing and a through hole penetrating the wind direction plate are provided, and a wind direction changing unit is provided in the through hole. The wind direction changing unit includes a wind direction changing plate and a rotation shaft that rotatably supports the wind direction changing plate, so that the air blowing range can be changed according to the amount of clothing, and the fan casing. When changing the air blowing range by making the air velocity distribution in the inside uniform, it is possible to improve the drying efficiency of clothing by preventing the area that cannot blow even if the air blowing range is expanded. One in which it is bet.

  That is, in the air blowing operation, the air flow generated by the impeller rotated by driving the motor is blown to the air outlet through the fan casing. Here, the blown air is blown from the wind direction plate in the fan casing to the outlet through the wind direction changing plate of the wind direction changing unit. At this time, the wind sent from the impeller spreads in the casing while adhering to a plurality of wind direction plates provided in the casing, thereby uniforming the wind speed distribution. The uniformed wind passes through the wind direction changing plate of the wind direction changing unit, so that the wind can be applied to a range where the air cannot be blown while keeping the wind speed uniform.

  By these results, the effect of improving the drying efficiency of clothing can be obtained.

  Therefore, it is expected to be used as a blower for a dehumidifier for home use or office use, a bathroom clothes dryer and an air conditioner.

DESCRIPTION OF SYMBOLS 1 Intake port 2 Outlet 3 Main body case 4 Blower means 5 Impeller 6 Motor 7 Fan casing 8 Wind direction plate 9 Through-hole 10 Wind direction change unit 11 Wind direction change plate 11a Wind direction change plate 11b Wind direction change plate 12 Rotating shaft 13 Notch part 14 Grill member 15 Rotating means 16 Linear shape 17 Curved shape 18 Fan casing lid 19 Fan casing tongue portion 20 Fan casing discharge portion 21 Heater
DESCRIPTION OF SYMBOLS 101 Main body 102 Air outlet 104 Air direction change unit 105 Air direction change board 106 Small motor 108 Rotating shaft

Claims (15)

A main body case having a suction port and an air outlet, and an air blowing means are provided in the main body case. The air blowing means supplies an impeller, a motor for driving the impeller, and air sent from the impeller to the air outlet. A wind direction plate for uniforming the wind speed distribution in the fan casing and a through hole penetrating the wind direction plate, and a wind direction changing unit is provided in the through hole. An air blower including a wind direction changing plate and a rotating shaft that rotatably supports the wind direction changing plate. A main body case having a suction port and an air outlet, and an air blowing means are provided in the main body case. The air blowing means supplies an impeller, a motor for driving the impeller, and air sent from the impeller to the air outlet. A wind direction plate for uniforming the wind speed distribution in the fan casing, and a notch portion having a recess on the air outlet side in the wind direction plate, the notch portion having a wind direction changing unit, The wind direction changing unit is a blower device including a wind direction changing plate and a rotation shaft that rotatably supports the wind direction changing plate. The air blower according to claim 1, wherein a plurality of wind direction plates are provided. The air blower according to claim 3, wherein the wind direction plate is configured to have different angles to the air outlet side. The blower according to claim 3 or 4, wherein the wind direction plate has substantially the same projected area in the rotation axis direction. The air blowing device according to any one of claims 1 to 5, wherein the wind direction changing unit has a circular projected outer shape in the rotation axis direction. The air blowing device according to any one of claims 1 to 6, wherein the air direction changing unit includes a rotating means for rotating the rotating shaft. The wind direction changing unit according to any one of claims 1 to 7, wherein the wind direction changing unit is configured to be switchable between a shape that expands an air blowing range by rotating a rotation shaft, a shape that concentrates, and a shape that blows right above. The blower described. The air blowing device according to any one of 1 to 8, wherein the wind direction plate has a linear shape that uniformizes the wind speed distribution in the fan casing in the vicinity of the impeller. The blower device according to any one of claims 1 to 9, wherein the wind direction plate has a curved shape that spreads air in the fan casing over a wide range in the vicinity of the air outlet. The blower device according to any one of claims 1 to 10, wherein the wind direction plate gradually decreases in thickness from the outlet side to the impeller side. The blower according to any one of claims 1 to 11, wherein the wind direction changing plate not provided in the through hole in the wind direction plate is provided at a location where the wind speed distribution is substantially uniform in the fan casing. 13. When the wind direction changing unit is at a position where the air blowing range is expanded, the inclination angle of the wind direction changing plate located on the tongue side of the fan casing and the angle of the discharge portion of the fan casing are substantially matched. The air blower as described in any one of these. When the wind direction changing unit is at a position where the air blowing range is concentrated, the gap between the wind direction changing plate located closest to the tongue of the fan casing and the tongue of the fan casing is narrowed to prevent wind leakage. The air blower according to any one of claims 1 to 13, which is configured. The drying apparatus provided with the heater which dries air, and the ventilation apparatus as described in any one of Claims 1-14 which blows off the air dried with this heater.

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