JP2016156509A - Blower device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bathroom ventilation drying heater which can open/close a plurality of blowout ports with a simple structure, and which can blowout a sufficient amount of air from each blowout port.SOLUTION: A bathroom ventilation drying heater 1A includes: a circulation ventilation fan 2A for sucking air in a bathroom from a circulation ventilation suction port 20A and blowing it out; a first blowout port 21A in which the air blown out into the bathroom passes; a second blowout port 22A provided on the opposite side from the circulation ventilation suction port 20A with respect to the first blowout port 21A, and in which the air blown out to the bathroom passes; a ventilation blowout port 23A in which the air blown to the outside passes; and an air passage switching damper 6A for opening/closing the first blowout port 21A and the second blowout port 22A and the ventilation blowout port 23A by a rotation operation with an axis 60A being a fulcrum. The air passage switching damper 6A has the axis 60A on the upstream side with respect to an air flowing direction from a branch part 52A between the first blowout port 21A and the second blowout port 22A, with a distance from the branch part 52A.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a blower device that is installed in a bathroom or the like and blows air or warm air into a room.

  Conventionally, there has been proposed a blower device that is installed on a ceiling of a bathroom or the like, and blows out hot air or air according to room temperature into the room to realize functions such as heating the room and drying an object to be dried in the room. . Many of such blowers have a function of ventilating indoor air to the outside, and are called bathroom ventilation dryers / heaters.

  The bathroom ventilation dryer is provided on the ceiling of the bathroom so that an air outlet is provided on the lower surface of the front panel, and the outlet faces the inside of the bathroom. The bathroom ventilation dryer / heater has an operation mode to dry clothes and other objects to be dried in the bathroom, and a bathroom ventilation dryer / heater has been proposed in which warm air is blown out uniformly from the air outlet. (For example, refer to Patent Document 1).

  In the bathroom ventilation drying heater described in Patent Document 1, an air passage through which a heater is passed through a portion having a low wind speed at a blowout outlet, and an air passage through which the heater is not passed through a portion having a high wind speed are provided. A technique has been proposed in which a wind direction guide is provided at the air outlet of the air outlet so that the air volume in a wind passage with a high wind speed is uniform in the air outlet.

Japanese Patent No. 4052216

  In the conventional bathroom ventilation / drying heater, in order to be able to switch the air path with or without ventilation, an air path switching member called a damper is provided, which opens and closes the air outlet to the room and opens the air outlet to the outside. Opening and closing is performed by the air path switching member.

  In Patent Document 1, the air outlet is opened and closed by a damper, but the air passage that passes the heater and the air passage that does not pass the heater cannot be opened and closed independently. A configuration in which the wind direction guide is movable and the air passage that does not pass through the heater is also conceivable, but this leads to an increase in the number of parts and a decrease in assemblability, which also causes a malfunction.

  The present invention has been made to solve such a problem, and can open and close a plurality of air outlets with a simple configuration, and a sufficient amount of air is blown from each air outlet. An object is to provide a blower.

  In order to solve the above-described problems, the present invention provides a blowing unit that sucks and blows air, a first outlet through which air blown into the room by the blowing unit passes, and air blown into the room by the blowing unit. A second blower outlet that passes through, a ventilation blower outlet through which air blown to the outside by the blower means passes, and a rotation operation with the shaft as a fulcrum, the first blower outlet, the second blower outlet, and the ventilation blower outlet The air path opening / closing means is an air blower provided with a shaft on the upstream side with respect to the direction of air flow from a branch portion between the first air outlet and the second air outlet. .

  In the present invention, when the second air outlet is opened, the air blown out from the first air outlet and the air blown out from the second air outlet flow along the same side surface of the air passage opening / closing means. . As a result, the amount of air blown from the second outlet becomes a sufficient amount with respect to the amount of air blown from the first outlet.

  In the present invention, since a sufficient amount of air can be blown out from the second air outlet, the air blown out from the first air outlet is stirred by the air blown out from the second air outlet. The air flow can be made where there is no direct flow.

It is a block diagram which shows an example of the bathroom ventilation drying heater of this Embodiment. It is a block diagram which shows an example of the bathroom ventilation drying heater of this Embodiment. It is a block diagram which shows an example of the bathroom ventilation drying heater of this Embodiment. It is a block diagram which shows the example of installation of the bathroom ventilation drying heater of this Embodiment. It is explanatory drawing which shows the operation | movement of the air path switching damper in the bathroom ventilation drying heater of this Embodiment. It is explanatory drawing which shows the operation | movement of the air path switching damper in the bathroom ventilation drying heater of this Embodiment. It is explanatory drawing which shows the operation | movement of the air path switching damper in the bathroom ventilation drying heater of this Embodiment. It is explanatory drawing which shows the flow of the air in the bathroom in the bathroom ventilation drying heater of this Embodiment. It is a block diagram which shows the modification of the air path switching damper of this Embodiment.

  Hereinafter, with reference to drawings, an embodiment of a bathroom ventilation drying heater as a blower of the present invention will be described.

<Configuration example of bathroom ventilation dryer / heater of this embodiment>
1 to 3 are configuration diagrams showing an example of a bathroom ventilation dryer / heater according to the present embodiment, FIG. 1 is a side view showing the internal configuration of the bathroom ventilation dryer / heater, and FIG. 2 is a bottom view. FIG. FIG. 3 is a plan view of the front panel attached. Furthermore, FIG. 4 is a block diagram showing an installation example of the bathroom ventilation dryer / heater of the present embodiment.

  The outline of the bathroom ventilation drying / heating machine 1A according to the present embodiment will be described. The bathroom ventilation drying / heating apparatus 1A includes a body part 3A having a circulation ventilation fan 2A and a front panel 4A exposed, Mounted on the ceiling.

  The bathroom ventilation dryer 1A is a circulation ventilation fan 2A that draws in air and blows it out. The bathroom ventilation drying heater 1A has a circulation ventilation inlet 20A through which the air in the bathroom 100 is sucked in and a heater 5. The heater 5 is driven to warm air. In addition, the heater 5 is not driven, and a first air outlet 21A that blows out air according to room temperature in the bathroom 100 and a second air outlet 22A that blows out air that stirs the air in the bathroom 100 are provided.

  In addition, the bathroom ventilation dryer 1A includes a ventilation outlet 23A that exhausts air sucked from the circulation ventilation inlet 20A by the circulation ventilation fan 2A to the outside. Furthermore, the bathroom ventilation dryer 1A includes an air path switching damper 6A that switches an air path between the first air outlet 21A, the second air outlet 22A, and the ventilation air outlet 23A.

  When the bathroom ventilating / drying heater 1A opens the first air outlet 21A and the second air outlet 22A by the operation of the air path switching damper 6A, the inside of the curved air path switching damper 6A has a concave shape. Thus, an air passage communicating with the first air outlet 21A and the second air outlet 22A is formed.

  Thereby, a sufficient amount of air to stir the air in the bathroom 100 is blown from the second air outlet 22A, and even in a place where the hot air blown from the first air outlet 21A does not directly hit, An air flow can be generated.

  Therefore, in the bathroom ventilation dryer 1A, the first air outlet 21A and the second air outlet 22A are opened by the operation of the air path switching damper 6A, and hot air is blown into the bathroom 100 and the interior of the bathroom 100 is ventilated. In the operation mode in which clothes and the like are dried, moisture of the clothes is easily evaporated, and energy required for drying the clothes and the like is reduced.

  The details of the bathroom ventilation drying / heating machine 1A will be described below. The circulation ventilation fan 2A is an example of air blowing means, and a multi-blade impeller 25A, a circulation ventilation fan motor 26A that drives the impeller 25A, and an air path. A circulation ventilation fan case 27A is provided. The impeller 25A is driven and rotated by the circulation ventilation fan motor 26A to generate a flow of air blown in the centrifugal direction from the inner side to the outer peripheral side.

  The circulation ventilation fan case 27A rectifies air blown in the centrifugal direction of the impeller 25A in a shape combining a circular portion along the outer periphery of the impeller 25A and a portion along the tangential direction of the impeller 25A. Thus, a flow of air blown out along the tangential direction of the impeller 25A is generated.

  The circulation ventilation fan 2A is configured in such a manner that the direction of the rotation shaft of the impeller 25A is along the vertical direction in a state where the bathroom ventilation dryer 1A is installed on the ceiling of the bathroom which is a predetermined installation location.

  As a result, the circulation ventilation fan case 27A forms a blowout air passage 28A through which the circulation ventilation fan 2A blows air sucked from below along the rotation axis of the impeller 25A in the tangential direction of the impeller 25A.

  The circulation ventilation fan 2A includes a circulation ventilation inlet 20A through which air is sucked on the lower surface of the circulation ventilation fan case 27A. Further, the circulation ventilation fan 2A has air heated by driving the heater 5 on the lower surface of the circulation ventilation fan case 27A or air corresponding to the temperature in the bathroom 100 by deactivating the heater 5. A first air outlet 21A is provided.

  Furthermore, the circulation ventilation fan 2A includes a second air outlet 22A through which air for stirring the bathroom 100 is blown out on the lower surface of the circulation ventilation fan case 27A. The circulation ventilation fan 2A includes a ventilation outlet 23A through which air is blown out to the outside on the side surface of the circulation ventilation fan case 27A.

  The circulation ventilation suction port 20A is configured by providing a circular opening called a bell mouth below the rotation axis of the impeller 25A. 21 A of 1st blower outlets are comprised by providing the rectangular opening which made the short side the side along the blowing direction of the air by the circulation ventilation fan case 27A in the lower surface of the blowing air path 28A.

  The second air outlet 22A circulates a rectangular opening having a short side along the air blowing direction by the circulation ventilation fan case 27A on the lower surface of the air outlet 28A with respect to the first air outlet 21A. It is provided on the opposite side of the ventilation inlet 20A.

  The blowout air passage 28A configured by the circulation ventilation fan case 27A is widened at a portion where the first air outlet 21A and the second air outlet 22A are provided, and is narrowed at a portion where the ventilation air outlet 23A is provided. In the first air outlet 21A and the second air outlet 22A, the long side intersecting the side along the air blowing direction by the circulation ventilation fan case 27A is adjusted to the length in the width direction of the main body 3A. .

  The first air outlet 21A and the second air outlet 22A are constituted by an air passage forming frame body 50A provided on the lower surface of the circulation ventilation fan case 27A. The first air outlet 21A and the second air outlet 22A are partitioned by a partition member 51A provided inside the air passage forming frame body 50A, and the heated air blowing air through which the air blown from the first air outlet 21A passes. A stirring air blowing air passage through which the air and the air blown out from the second air outlet 22A pass is formed.

  The air path switching damper 6A is an example of air path opening / closing means, and a driving force of a damper motor (not shown) is transmitted to the shaft 60A so that the shaft 60A rotates as a fulcrum. Opening and closing operation with the outlet 23A is performed.

  The air path switching damper 6A is predetermined from the branching part 52A upstream of the branching part 52A between the first outlet 21A and the second outlet 22A constituted by the partition member 51A in the air flow direction. A shaft 60 </ b> A for opening / closing operation by rotation with a distance of is provided.

  In the air path switching damper 6A, a portion upstream of the shaft 60A with respect to the direction in which the air flows is in a direction to open and close the first air outlet 21A and the ventilation air outlet 23A by a rotational operation with the shaft 60A as a fulcrum. Displace. Further, in the air path switching damper 6A, a portion downstream of the shaft 60A with respect to the air flow direction is displaced in a direction to open and close the second outlet 22A by a rotational operation with the shaft 60A as a fulcrum.

  Thereby, the air path switching damper 6A is a part extending upstream from the shaft 60A in the air flow direction, and mainly switches the air path between the first air outlet 21A and the ventilation air outlet 23A. At the same time, a main air path switching unit 61A for switching the opening degree of the ventilation outlet 23A is configured. The air path switching damper 6A is a portion extending downstream from the shaft 60A with respect to the direction of air flow. The air path switching damper 6A mainly opens and closes the second air outlet 22A, and the air path switching damper on the inner surface. The air passage to the first air outlet 21A, the air passage to the first air outlet 21A, and the second air outlet 22A are formed according to the opening degree of 6A, and the air passage to the ventilation air outlet 23A is formed on the outer surface. An auxiliary air passage switching unit 62A in which an air passage is formed is configured. Furthermore, the air path switching damper 6A extends along the direction of the rotation operation with the shaft 60A as a fulcrum on the tip side of the auxiliary air path switching unit 62A, and the second air outlet 22A with respect to the ventilation air outlet 23A. A backflow prevention unit 63A is provided.

  In the bathroom ventilation dryer 1A, when the position of the air path switching damper 6A is the circulation position indicated by the solid line in FIG. 1 as the first position, the main air path upstream of the shaft 60A with respect to the air flow direction. In the switching unit 61A, the tip of the main air path switching unit 61A, which is one end of the air path switching damper 6A, is in contact with the upper inner surface of the circulation ventilation fan case 27A.

  Further, in the secondary air path switching unit 62A on the downstream side of the shaft 60A with respect to the air flow direction, the tip of the secondary air path switching unit 62A that is the other end of the air path switching damper 6A is in contact with the branching part 52A. . Furthermore, the backflow prevention unit 63A closes the second air outlet 22A with respect to the ventilation air outlet 23A. Thereby, the first air outlet 21A is opened, the second air outlet 22A and the ventilation air outlet 23A are closed, and a circulation air passage communicating from the circulation ventilation suction port 20A to the first air outlet 21A is formed. .

  When the position of the air path switching damper 6A becomes the circulation position, the vicinity of the front end of the main air path switching unit 61A is oriented along the inner surface of the circulation ventilation fan case 27A. As a result, even if the air path switching damper 6A is slightly opened from the circulation position, air hardly passes and airtightness is maintained.

  Note that the air path switching damper 6A and the circulation ventilation fan case 27A or the branching portion 52A are not only in close contact with each other, but also in a state where a certain amount of air can pass and a certain amount of air can be maintained. good.

  In the state where the position of the air path switching damper 6A is the circulation position, the end of the main air path switching unit 61A and the circulation ventilation fan case 27A and the auxiliary air path switching unit 62A and the circulation ventilation fan are thus formed. By providing a predetermined gap between the case 27A and the air path switching damper 6A and the circulation ventilation fan case 27A, it is possible to prevent the air flow switching damper 6A and the circulation ventilation fan case 27A from being fixed due to components contained in water vapor, bathing agent, or the like. .

  In the bathroom ventilation drying / heating machine 1A, when the position of the air path switching damper 6A is rotated from the circulation position around the shaft 60A as a fulcrum to the circulation ventilation position indicated by the broken line in FIG. The upstream main air path switching unit 61A moves downward, and one end of the air path switching damper 6A is located near the middle of the blowout air path 28A.

  Further, the secondary air passage switching unit 62A on the downstream side of the shaft 60A moves upward away from the branching unit 52A. As a result, both the first air outlet 21A and the second air outlet 22A and the ventilation air outlet 23A are opened, and both the circulation air passage and the ventilation air passage communicating from the circulation ventilation inlet 20A to the ventilation air outlet 23A are opened. Is formed.

  In the bathroom ventilation dryer 1A, when the position of the air path switching damper 6A is rotated from the circulation ventilation position with the shaft 60A as a fulcrum to the ventilation position indicated by the one-dot chain line in FIG. 1, which is the third position, the shaft 60A The main air path switching unit 61A on the more upstream side moves downward, and one end of the air path switching damper 6A is in contact with the lower inner surface of the circulation ventilation fan case 27A. Further, the secondary air path switching unit 62A on the downstream side of the shaft 60A moves upward, and the other end of the air path switching damper 6A is in contact with the inner surface of the circulation ventilation fan case 27A below the ventilation outlet 23A. As a result, the ventilation outlet 23A is opened, the first outlet 21A and the second outlet 22A are closed, and a ventilation air passage is formed.

  Even when the position of the air path switching damper 6A is set to the ventilation position, between the end of the main air path switching section 61A and the circulation ventilation fan case 27A, and between the auxiliary air path switching section 62A and the circulation ventilation fan case 27A. By providing a predetermined gap that maintains a certain airtightness therebetween, the air path switching damper 6A and the circulation ventilation fan case 27A are fixed by water vapor contained in the air, components contained in the bathing agent, or the like. It is suppressed.

  Thus, in the bathroom ventilation drying / heating machine 1A, the single circulation ventilation fan 2A sucks the air in the bathroom 100, blows the sucked air into the bathroom 100, exhausts the sucked air to the outside, and sucks the air. An operation of blowing a part of the air into the bathroom 100 and exhausting the remaining part outside the room is performed.

  In the bathroom ventilation dryer 1A, the opening / closing operation of the first air outlet 21A, the second air outlet 22A, and the ventilation air outlet 23A is performed by one air path switching damper 6A.

  The air path switching damper 6A is provided with a shaft 60A upstream of the branching portion 52A between the first air outlet 21A and the second air outlet 22A in the air flow direction. In the path switching damper 6A, the air blown from the first air outlet 21A flows along the inner surface facing the first air outlet 21A and the second air outlet 22A. Moreover, the air blown out from the second air outlet 22A flows along the inner surface facing the first air outlet 21A and the second air outlet 22A.

  For this reason, the air path switching damper 6A has the first air outlet 21A and the second air outlet so as to guide the air passing through the air outlet 28A to the first air outlet 21A and the second air outlet 22A in the circulation ventilation position. The surface facing the air outlet 22A has a concavely curved shape.

  In addition, since the air blown from the second air outlet 22A does not flow along the outer surface, the air path switching damper 6A allows the air passing through the air outlet 28A to flow to the second surface. A rectifying member for guiding to the air outlet 22A is not necessary.

  Thereby, in the air path switching damper 6A at the circulation ventilation position or the ventilation position, there is no member on the outer surface that narrows the ventilation air path communicating with the ventilation outlet 23A and obstructs the air flow. A predetermined ventilation air volume can be secured.

  Further, the air path switching damper 6A is provided with a shaft 60A on the upstream side of the branch portion 52A and in the vicinity of the height of the lower end of the ventilation outlet 23A. Thereby, when the air path switching damper 6A is in the circulation ventilation position and the ventilation position, the amount of projection of the air path switching damper 6A to the air path communicating with the ventilation air outlet 23A is reduced, and the air communicating with the ventilation air outlet 23A is reduced. Ventilation resistance on the road can be reduced.

  The heater 5 is an example of a heating unit. In this example, the heater 5 is a PTC heater, and is provided in a heated air blowing air passage through which air blown from the first blower outlet 21A passes. When the heater 5 is driven and energized, the heater 5 is heated to heat the air passing through the first air outlet 21A, and hot air is blown out from the first air outlet 21A.

  The first air outlet 21A and the second air outlet 22A are partitioned by a partition member 51A, and the air blown from the second air outlet 22A does not pass through the heater 5. In this example, the heater 5 driven by electricity as an example of the heating means has been described as an example. However, a heater such as a heat exchanger using hot water may be used.

  The main body 3A includes a main body chassis 30A that constitutes the circulation ventilation fan case 27A and a metal case 31A that covers the main body chassis 30A. The main body chassis 30A is made of a resin material, and a circulation ventilation fan case 27A covered with a metal case 31A and a flange portion 32A protruding outward from the peripheral edge of the lower end of the main body portion 3A are integrally formed.

  The main body chassis 30A has a lower cover 33A attached to the lower surface exposed from the metal case 31A. In the circulation ventilation fan 2A, a circulation ventilation suction port 20A, a first air outlet 21A, and a second air outlet 22A are provided in the lower cover 33A, and an air passage forming frame body 50A is attached to the lower cover 33A.

  The metal case 31A has an opening facing the ventilation outlet 23A of the circulation ventilation fan 2A, and an exhaust duct joint 34A communicating with the ventilation outlet 23A is attached to the side surface.

  As for bathroom ventilation drying heating machine 1A, front panel 4A is attached to the undersurface of body part 3A. The front panel 4A opens a lower surface facing the circulation ventilation inlet 20A of the circulation ventilation fan 2A to form an inlet grill 40A.

  Further, the front panel 4A opens a lower surface facing the first air outlet 21A of the circulation ventilation fan 2A to form a first air outlet grill 41A, and a lower surface facing the second air outlet 22A. A second air outlet grille 42A is formed by opening.

  41 A of 1st blower outlet grilles are comprised by the rectangular opening which lengthened the length along the transversal direction which is a direction along one edge | side of the main-body part 3A. Moreover, the 2nd blower outlet grille 42A is a rectangular opening which lengthened the length along the transversal direction which is a direction along one side of the main-body part 3A similarly to the 1st blower outlet grille 41A. Composed.

  The first outlet grille 41A is provided with a current plate so that air is blown out along the longitudinal direction. The second outlet grille 42A is blown out toward the outside of the main body 3A opposite to the first outlet grille 41A along the short direction parallel to the first outlet grille 41A. As shown, a rectifying plate 43A is provided.

<Installation example of bathroom ventilation drying heater of this embodiment>
Next, with reference to each figure, the installation example of 1 A of bathroom ventilation drying heaters of this Embodiment is demonstrated.

  As shown in FIG. 4, the bathroom ventilation dryer 1 </ b> A is installed on the ceiling panel 101 of the bathroom 100. The ceiling panel 101 of the bathroom 100 is formed with an opening to which the main body 3A of the bathroom ventilation dryer 1A is attached. For example, the bathroom ventilation dryer 1A has a flange portion 32A provided on the back of the ceiling with a screw (not shown). It is attached to the ceiling panel 101 in a form fixed to the reinforcing member.

  The bathroom ventilation dryer / heater 1A has a front panel 4A attached to the lower surface of the main body 3A, and an inlet grill 40A, a first outlet grill 41A, and a second outlet grill 42A of the front panel 4A, It is arranged facing the bathroom 100.

  In the bathroom ventilation dryer 1A installed on the ceiling panel 101 of the bathroom 100, the exhaust duct 102 is attached to the exhaust duct joint 34A of the main body 3A. The exhaust duct 102 is connected to an outdoor grill 102a attached to an outer wall of a building (not shown) where the bathroom 100 is installed, and the bathroom ventilation / drying heater 1A is connected to the outdoors via the exhaust duct 102.

  The bathroom 100 includes a bathtub 103 and a washing place 104. The bathtub 103 is generally rectangular, and the bathtub 103 and the washing place 104 are arranged along the short direction of the bathtub 103.

  The bathroom 100 includes a land pipe 105 that is a clothes-drying member at the top of the bathtub 103. The land pipe 105 extends along the longitudinal direction of the bathtub 103 and is attached between the opposing wall surfaces 106 a and 106 b of the bathroom 100.

  In addition, the number of the land re-pipe 105 installed in the bathroom 100 is about one or two. In this example, an example in which one land re-pipe 105 is arranged is shown. Further, the clothes drying member is not limited to a pipe-like member, and may be a string or other members as long as an object to be dried such as laundry can be dried.

  The bathroom ventilation dryer 1A is installed in the upper part of the bathtub 103 so that the longitudinal direction of the first outlet grille 41A and the second outlet grille 42A is orthogonal to the longitudinal direction of the land pipe 105. Is done.

  Thereby, in the bathroom ventilation drying / heating machine 1 </ b> A, the air blown out from the first outlet grille 41 </ b> A mainly spreads in a direction orthogonal to the land pipe 105. On the other hand, the air blown out from the second outlet grille 42A is directed to the wall surface 106a of the bathroom 100 on the side where the second outlet grille 42A is provided.

<Operation example of bathroom ventilation dryer / heater of this embodiment>
5-7 is explanatory drawing which shows the operation | movement of the air-path switching damper in the bathroom ventilation drying heater of this Embodiment, FIG. 8 is the flow of the air in the bathroom in the bathroom ventilation drying heater of this Embodiment. Next, with reference to each figure, the operation example of 1 A of bathroom ventilation drying heaters of this Embodiment is demonstrated.

  In the drying operation mode, the bathroom ventilation dryer 1A sets the air path switching damper 6A to the circulation ventilation position shown in FIG. 6, drives the circulation ventilation fan motor 26A to rotate the impeller 25A, and energizes the heater 5. .

  In the bathroom ventilation dryer 1A, when the impeller 25A rotates, the air in the bathroom 100 is sucked into the circulation ventilation inlet 20A from the inlet grill 40A of the front panel 4A.

  In the dry operation mode, since the air path switching damper 6A is in the circulation ventilation position, the blowout air path 28A includes a circulation air path communicating from the circulation ventilation suction port 20A to the first air outlet 21A and the second air outlet 22A. Both of the ventilation air paths communicating from the circulation ventilation inlet 20A to the ventilation outlet 23A are formed.

  Thereby, a part of air RA of the bathroom 100 sucked from the circulation ventilation suction port 20A by the rotation of the impeller 25A flows to the first air outlet 21A and the second air outlet 22A. Further, the remaining air in the bathroom 100 sucked from the circulation ventilation inlet 20A flows to the ventilation outlet 23A, passes through the exhaust duct 102, and is exhausted to the outside as the exhaust EA from the outdoor grill 102a.

  In the drying operation mode, the air flowing through the first air outlet 21A is heated by the heater 5 so that the hot air HA is blown out from the first air outlet grill 41A of the front panel 4A. Since the air flowing through the second air outlet 22A does not pass through the heater 5, air A corresponding to the room temperature is blown out from the second air outlet grill 42A of the front panel 4A.

  In the bathroom ventilation dryer 1A, the air blown from the first outlet grille 41A spreads in the longitudinal direction of the land pipe 105 and the direction orthogonal to the land pipe 105.

  However, the bathroom ventilation drying / heating machine 1A is arranged so that the longitudinal direction of the first blower outlet grill 41A is orthogonal to the land pipe 105, so that the air blown from the first blower grill 41A is mainly used. It spreads in a direction orthogonal to the land re-pipe 105.

  For this reason, warm air is applied to the whole of the width direction with respect to an object to be dried such as clothes hung on the land pipe 105 in the vicinity immediately below the first outlet grille 41A. On the other hand, the hot air blown out from the first outlet grille 41A is directly applied to an object to be dried hung on the land pipe 105 at a position away from directly below the first outlet grille 41A. Hard to hit.

  In the bathroom ventilation dryer 1A, the air A blown out from the second outlet grille 42A is on the side where the second outlet grille 42A is provided with respect to the first outlet grille 41A by the rectifying plate 43A. It is directed to the wall surface 106 a of the bathroom 100.

  Thus, as shown in FIG. 8A, the air A blown from the second outlet grille 42A in the drying mode is applied to one wall surface 106a of the bathroom 100, and the wall surface 106a as shown by an arrow A1. It flows downward along. The air flowing downward along the wall surface 106a flows in the vicinity of the lower layer of the bathroom 100 mainly toward the other wall surface 106b, as indicated by an arrow A2.

  In the bathroom ventilation dryer 1A, the air RA sucked from the suction grill 40A causes a flow of circulating air in the bathroom 100, so the air flowing in the vicinity of the lower layer of the bathroom 100 toward the other wall surface 106b. Flows upward along the wall surface 106b as indicated by an arrow A3, and is sucked from the inlet grill 40A.

  As described above, in the bathroom ventilation dryer 1A, the air blown from the second outlet grille 42A is directed downward along the one wall surface 106a of the bathroom 100, and the vicinity of the lower layer of the bathroom 100 is moved to the other wall surface 106b. , And an upward air flow can be generated along the other wall surface 106b.

  Since the air blown from the first blower outlet grill 41A of the bathroom ventilation dryer 1A in the drying operation mode is warm air heated by the heater 5 and the relative humidity is lowered, the second blower grill Lighter than air blown from 42A.

  For this reason, the air blown out from the second blowout grille 42A, which is heavier than the air blown out from the first blowout grille 41A, flows to the lower layer of the bathroom 100, and the air is agitated throughout the bathroom 100. Wind flow can be generated.

  Thereby, the warm air blown out from the first outlet grille 41A is also near the object to be dried hung on the land re-pipe 105 at a position away from directly below the first outlet grille 41A, which is difficult to hit directly. An air flow can be generated.

  In the configuration in which the axis of the air path switching damper is provided in the branching section 52A and the second air outlet 22A is provided, the air blown out from the first air outlet 21A flows along the inner surface of the air path switching damper. The air blown out from the second air outlet 22A flows along the outer surface of the air path switching damper. In such a configuration, a sufficient amount of air is blown out from the first air outlet 21A. On the other hand, in order to rectify the flow of air blown from the second air outlet 22A, it is necessary to provide a rectifying member on the outer surface of the air path switching damper.

  However, even if the rectifying member is provided, a sufficient amount of air cannot be blown out from the second air outlet 22A. Further, if the air path switching damper is in the circulation ventilation position, the exhaust air path is narrowed and the ventilation air volume cannot be secured.

  Moreover, in the structure which opens and closes the 1st blower outlet 21A and the 2nd blower outlet 22A with the independent component air path switching damper, although a damper can be arrange | positioned in the position which can ensure air volume, the cost accompanying the increase in a number of parts This leads to a decrease in assembly and ease of assembly, and may cause malfunction.

  In contrast, the air path switching damper 6A is provided with a shaft 60A at a predetermined distance from the branch portion 52A on the upstream side of the branch portion 52A with respect to the air flow direction. Thereby, in the air path switching damper 6A in the circulation ventilation position, the air blown from the first air outlet grill 41A through the first air outlet 21A flows along the inner surface of the air path switching damper 6A. .

  Further, in the air path switching damper 6A in the circulation ventilation position, the end of the auxiliary air path switching unit 62A extending from the shaft 60A toward the branching part 52A is located away from the branching part 52A. Air outlet 22A is open. Thereby, the air blown out from the second outlet grille 42A through the second outlet 22A also flows along the inner surface of the air path switching damper 6A.

  Therefore, a sufficient amount of air to stir the air in the bathroom 100 is blown out from the second outlet grille 42A, and the air in the bathroom 100 stirred by the air blown out from the second outlet grille 42A. With this flow, a sufficient amount of hot air HA blown out from the first outlet grille 41 </ b> A can be circulated in the bathroom 100.

  As a result, the moisture of the object to be dried easily evaporates, and if the output of the heater 5 is the same as the conventional one, the drying time can be shortened and the energy required for drying the object to be dried can be reduced. Further, if the drying time is the same as that in the prior art, the output of the heater 5 can be reduced, and the energy required for drying the object to be dried can also be reduced. In addition, since part of the air in the bathroom 100 is exhausted to the outside and is ventilated, moisture and the like can be discharged to promote drying of the object to be dried.

  Further, in the air path switching damper 6A in the circulation ventilation position, there is no member on the outer surface that narrows the ventilation air path communicating with the ventilation air outlet 23A and obstructs the air flow. A predetermined ventilation air volume can be secured without increasing the rotational speed of the circulation ventilation fan motor 26A at 2A.

  Thereby, an increase in sound and an increase in power consumption due to an increase in the rotation speed of the circulation ventilation fan motor 26A can be prevented.

  In this example, the land re-pipe 105 has been described as an example. However, even in a bathroom where two land re-pipes 105 are provided, air can be placed around the object to be dried hung at an arbitrary position on each land re-pipe 105. Since the flow can be generated, the energy required for drying the object to be dried can be reduced.

  In the dry operation mode, the heater 5 is driven simultaneously with the start of the circulation ventilation fan 2A and the warm air is blown from the beginning of the operation. However, at the beginning of the operation, the heater 5 is not driven and the air corresponding to the room temperature is blown. After blowing out and a predetermined time has elapsed, the heater 5 may be driven to blow out hot air. Even in the operation in which the driving of the heater 5 is delayed, the moisture of the object to be dried is easily evaporated, and the energy required for drying the object to be dried can be reduced.

  In the circulation ventilation operation mode, the bathroom ventilation dryer 1A sets the air path switching damper 6A to the circulation ventilation position shown in FIG. 6, the heater 5 is not driven, the circulation ventilation fan motor 26A is driven, and the impeller 25A is rotated. Let Here, in the drying operation mode and the circulation ventilation operation mode described above, the opening degree of the air path switching damper 6A is set to the ventilation blower so that the ventilation ventilation operation mode increases the ventilation air volume, which is the air volume exhausted to the outdoors. You may change to the position where the opening degree of exit 23A becomes wide.

  In the bathroom ventilation dryer 1A, the air in the bathroom 100 is sucked into the circulation ventilation inlet 20A from the inlet grill 40A of the front panel 4A by rotating the impeller 25A.

  In the circulation ventilation operation mode, since the air path switching damper 6A is in the circulation ventilation position, a part of the air in the bathroom 100 sucked from the circulation ventilation suction port 20A is part of the first air outlet 21A and the second air outlet 22A. It flows to. Moreover, the remainder of the air of the bathroom 100 sucked in from the circulation ventilation inlet 20A flows to the ventilation outlet 23A and is exhausted outdoors.

  In the circulation ventilation operation mode, since the heater 5 is not driven, the air flowing through the first air outlet 21A is blown out from the first air outlet grill 41A of the front panel 4A according to the room temperature. Since the air flowing through the second air outlet 22A does not pass through the heater 5, air A corresponding to the room temperature is blown out from the second air outlet grill 42A of the front panel 4A.

  In the bathroom ventilation dryer 1A, as shown in FIG. 8B, even in the circulation ventilation operation mode, the air blown out from the second outlet grille 42A is lowered downward along the one wall surface 106a of the bathroom 100. It is possible to generate an air flow that faces the lower surface of the bathroom 100 toward the other wall surface 106b and moves upward along the other wall surface 106b.

  Thereby, even in the circulation ventilation operation mode, it is possible to generate a flow of air that stirs the air in the entire bathroom 100, and the air blown from the first outlet grille 41 </ b> A directly in the bathroom 100. Even in places where it is difficult to hit, an air flow can be generated.

  Therefore, the drying time of each wall surface, floor surface, etc. of the bathroom 100 can be shortened. In addition, since a part of the air in the bathroom 100 is exhausted to the outside and ventilation is performed, moisture and the like can be discharged to promote drying of each wall surface and floor surface of the bathroom 100.

  As another operation mode executed in the bathroom ventilation dryer 1A, in the heating operation mode, the air path switching damper 6A is set to the circulation position shown in FIG. 5 to energize the heater 5, and the circulation ventilation fan motor 26A is turned on. Drives to rotate the impeller 25A.

  In the bathroom ventilation dryer 1A, the air in the bathroom 100 is sucked into the circulation ventilation inlet 20A from the inlet grill 40A of the front panel 4A by rotating the impeller 25A.

  In the heating operation mode, since the air path switching damper 6A is in the circulation position, substantially the entire amount of the air in the bathroom 100 sucked from the circulation ventilation inlet 20A flows to the first outlet 21A. In the heating operation mode, the air flowing through the first air outlet 21A is heated by the heater 5, so that warm air is blown out from the first air outlet grill 41A of the front panel 4A.

  In the heating operation mode, since the air path switching damper 6A is in the circulation position, the air in the bathroom 100 is not ventilated. Thereby, in the heating operation mode, the temperature in the bathroom 100 can be raised to a temperature suitable for bathing by circulating the air in the bathroom 100 while blowing hot air from the first outlet grille 41A. it can.

  Further, when the air path switching damper 6A is in the circulation position, the second air outlet 22A is blocked in addition to the ventilation air outlet 23A, so that air that does not pass through the heater 5 is not blown out. Thereby, even if it is the heating operation mode performed during bathing, the air which is not warmed by the heater 5 is not blown out, and the bather does not feel cold.

  Furthermore, when the air path switching damper 6A is in the circulation position, the second air outlet 22A is blocked by the backflow prevention portion 63A with respect to the ventilation air outlet 23A, so that the outside air is prevented from flowing back into the bathroom 100. Can do.

  In the ventilation operation mode, the air path switching damper 6A is set to the ventilation position shown in FIG. 7, the heater 5 is not driven, the circulation ventilation fan motor 26A is driven, and the impeller 25A is rotated.

  In the bathroom ventilation dryer 1A, the air in the bathroom 100 is sucked into the circulation ventilation inlet 20A from the inlet grill 40A of the front panel 4A by rotating the impeller 25A.

  In the ventilation operation mode, since the air path switching damper 6A is in the ventilation position, the first air outlet 21A and the second air outlet 22A are blocked, and the abbreviation of the air in the bathroom 100 sucked from the circulation ventilation air inlet 20A. The entire amount flows to the ventilation outlet 23A and is exhausted outdoors. Therefore, in the ventilation operation mode, steam and moisture in the bathroom 100 can be discharged to suppress dew condensation and the like, thereby suppressing the occurrence of mold.

  In the present embodiment, the air path switching damper 6A is provided with a shaft 60A at a predetermined distance from the branching portion 52A, upstream of the branching portion 52A in the air flow direction, and at an upstream side of the shaft 60A. A main air path switching unit 61A is provided, and a sub air path switching unit 62A is provided on the downstream side.

  Thereby, in the rotation operation of the air path switching damper 6A with the shaft 60a as a fulcrum, the first air outlet 21A is opened and the second air outlet 22A and the ventilation air outlet 23A are closed according to the operation mode, A state in which the first air outlet 21A and the second air outlet 22A and the ventilation air outlet 23A are opened. The state in which the first air outlet 21A and the second air outlet 22A are closed and the ventilation air outlet 23A is opened can be switched.

  In the present embodiment, the main air passage switching unit 61A and the sub air passage switching unit 62A have been described as being integrated. However, by combining a plurality of parts that are not integrated, each part is integrated. It may be configured to move automatically.

  Therefore, it is not necessary to have a configuration in which the main air path switching unit 61A and the sub air path switching unit 62A are opened and closed independently, which leads to cost reduction by reducing the number of parts and improvement in assemblability, and causes of malfunction. Can be reduced.

<Modification of Bathroom Ventilation Drying Heater of this Embodiment>
FIG. 9 is a configuration diagram illustrating a modified example of the air path switching damper of the present embodiment. The air path switching damper 6B shown in FIG. 9 (a) extends to the upstream side from the shaft 60B serving as a fulcrum of the rotation operation and the shaft 60B, and the first air outlet 21A and the ventilation air outlet 23A shown in FIG. And a main air path switching unit 61B that switches the opening degree of the ventilation outlet 23A.

  The air path switching damper 6B includes a sub air path switching unit 62B that extends downstream from the shaft 60B and opens and closes the air outlet 22A. The auxiliary air path switching unit 62B also serves as a backflow prevention unit that blocks the second air outlet 22A with respect to the ventilation air outlet 23A.

  The air path switching damper 6C shown in FIG. 9B extends to the upstream side from the shaft 60C serving as a fulcrum for the rotation operation, and the first air outlet 21A and the ventilation air outlet 23A shown in FIG. And a main air passage switching unit 61C that switches the opening of the ventilation outlet 23A.

  The air path switching damper 6C includes a sub air path switching unit 62C that extends downstream from the shaft 60C and opens and closes the air outlet 22A. Furthermore, the air path switching damper 6C branches from the auxiliary air path switching unit 62C on the outer surface of the air path switching damper 6C, and also serves as a backflow prevention unit 63C that blocks the second air outlet 22A with respect to the ventilation air outlet 23A. . In the air path switching damper 6C, the backflow prevention portion 63C does not protrude from the outer surface of the air path switching damper 6C. In the air path switching damper 6C in the circulation ventilation position or the ventilation position, the outside of the air path switching damper 6C. It is possible to reduce the resistance of the air flowing along the surface.

  The air blower of the present invention may have a configuration in which neither the first air outlet nor the second air outlet has a heater. Moreover, it is good also as a structure equipped with the direction of a ventilation blower outlet in the side part of the direction substantially orthogonal to the blowing direction of air instead of the side part of the direction along the blowing direction of the air by the circulation ventilation fan case 27A. Furthermore, as a configuration in which a device provided with a circulation ventilation fan and a device provided with each outlet for blowing air into the room are connected via a duct, and a device provided with a suction port from the room are connected via a duct. Also good.

  The present invention is applied to a blower installed in a space for drying an object to be dried such as a bathroom.

  1A ... bathroom ventilation dryer / heater, 2A ... circulation ventilation fan, 20A ... circulation ventilation inlet, 21A ... first outlet, 22A ... second outlet, 23A ...・ Ventilation outlet, 24 ... Airway switching damper, 4A ... Front panel, 40A ... Suction grill, 41A ... First outlet grill, 42A ... Second outlet grill 5 ... Heater, 52A ... Branch, 6A ... Air path switching damper, 60A ... Shaft, 61A ... Main air path switching section, 62A ... Sub air path switching section, 63A ... Backflow prevention unit, 100 ... Bathroom, 101 ... Ceiling panel, 103 ... Bathtub, 104 ... Washing area, 105 ... Land re-pipe, 106a, 106b ... Wall surface

Claims (5)

A blowing means for sucking in and blowing out air;
A first outlet through which air blown into the room by the blowing means passes;
A second outlet through which air blown into the room by the blowing means passes;
A ventilation outlet through which air blown out by the blowing means passes;
An air passage opening / closing means for opening and closing the first air outlet, the second air outlet, and the ventilation air outlet in a rotational operation with a shaft as a fulcrum;
The air passage opening / closing means includes the shaft on the upstream side with respect to the direction of air flow from a branch portion between the first air outlet and the second air outlet. The air passage opening / closing means includes a main air passage switching portion extending upstream from the shaft with respect to the direction of air flow, and a sub air passage switching portion extending downstream from the shaft,
The air passage opening and closing means is configured to rotate the main shaft as a fulcrum, so that the main air passage switching unit opens and closes the ventilation air outlet, and the auxiliary air passage switching portion opens and closes the second air outlet. The air blower according to claim 1, wherein The air passage opening / closing means opens the first air outlet and closes the second air outlet and the ventilation air outlet by a rotational operation with the shaft as a fulcrum, and the first air outlet. The second position for opening the outlet, the second outlet and the ventilation outlet, and the third position for closing the first outlet and the second outlet and opening the ventilation outlet are moved. The air blower according to claim 1 or 2, wherein When the air passage opening / closing means is in a position to open the first air outlet and the second air outlet, the air blown from the first air outlet and the air blown from the second air outlet The air blower according to any one of claims 1 to 3, wherein the air flows along a surface on the same side of the air passage opening and closing means. The air flow according to any one of claims 1 to 4, wherein the air passage opening / closing means includes a backflow prevention unit that blocks a space between the ventilation air outlet and the second air outlet. apparatus.

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