JP2005282874A - Air blower for bathroom - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air blower for a bathroom capable of simplifying a structure of an air trunk, and not only preventing the impairing of ventilating performance and air circulating performance, but also improving ventilating performance. <P>SOLUTION: This air blower comprises a ventilation unit 2 and an air circulation unit 3, a circulation outlet 32 of the air circulation unit is opened to generate the air flow along a bathroom ceiling face 40 or a bathroom wall face 44, a communication port 35 to the ventilation unit is formed on the air circulation unit, the air circulation unit and the ventilation unit are connected to directly connect the communication port with an intake port 21 of the ventilation unit, and a ventilation fan 25 of the ventilation unit and a circulation fan 34 of the air circulation unit are constituted to be selectively operated independently from each other or simultaneously with each other. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a bathroom blower used for making a dry atmosphere in a bathroom (including a toilet) and drying a ceiling surface and a wall surface.

  Conventionally, a blower for a bathroom having both functions of bathroom ventilation and air circulation in the bathroom has been proposed {see Patent Document 1 (Prior Art 1) and Patent Document 2 (Prior Art 2)}.

Prior art 1 is provided with a ventilation unit having a ventilation fan and an air circulation unit having a circulation fan, and enables ventilation of the bathroom by the ventilation unit and air circulation in the bathroom by the air circulation unit. there were.
However, in this prior art 1, the ventilation air passage from the intake port to the exhaust port in the ventilation unit and the circulation air passage from the circulation inlet to the circulation outlet in the air circulation unit are formed separately and independently. For this reason, there existed a problem that an air path structure became complicated.

Prior art 2 includes one blower fan, and is formed so that air taken in from the bathroom is branched into a ventilation air passage that discharges the air to the outside and a circulation air passage that returns the air into the bathroom. Yes.
However, in this prior art 2, since there is only one blower fan, when the air in the bathroom is circulated through the circulation air passage at the same time while ventilating with the ventilation air passage, the air volume inevitably disperses, so the ventilation capacity In addition, there is a problem that the air circulation ability is lowered.
JP 2003-65580 A JP-A-8-261529

  The present invention simplifies the air passage structure by using the circulation inlet in the air circulation unit also as an air intake port to the ventilation air passage of the ventilation unit, and makes the air circulation unit and the ventilation unit each have a blower fan. By providing (ventilation fan and circulation fan), it is an object to provide a bathroom blower device that not only prevents a decrease in ventilation capacity and air circulation capacity but also improves ventilation capacity.

In order to solve the above-mentioned problem, the bathroom blower of the present invention (Claim 1)
A ventilation unit that takes in the air in the bathroom from the intake port and exhausts it from the exhaust port to the outside by a ventilation fan;
It is equipped with an air circulation unit that takes air in the bathroom from the circulation inlet by a circulation fan and returns it to the bathroom from the circulation outlet,
The circulation outlet of the air circulation unit is opened to generate an air flow along the bathroom ceiling surface or bathroom wall surface,
The air circulation unit and the ventilation unit are connected so that a communication port to the ventilation unit is formed in the air circulation unit, and the communication port is directly connected to the intake port of the ventilation unit without using a duct or the like.
The ventilation fan of the ventilation unit and the circulation fan of the air circulation unit are configured so as to be capable of independent independent operation and simultaneous operation.

  The air blower for a bathroom according to claim 1, wherein the ventilation unit is an existing ventilation unit attached to a ceiling surface or a wall surface of the bathroom, and an air circulation unit is attached to the existing ventilation unit as a retrofit (invention). Item 2).

  3. The bathroom blower according to claim 1 or 2, wherein an opening / closing shutter is provided at an exhaust port of the ventilation unit.

  The bathroom air blower according to claim 1, 2 or 3, wherein the air circulation unit is provided with an air heating means on the leeward side of the circulation fan (claim 4).

In the present invention, since the circulation inlet in the air circulation unit is also used as an air intake port to the ventilation air passage of the ventilation unit, the air passage structure can be simplified.
In addition, since the air circulation unit and the ventilation unit are each provided with a blower fan (ventilation fan and circulation fan), the ventilation capacity and air circulation capacity are reduced, unlike the case where ventilation and air circulation are performed by one blower fan. Not only can it be prevented, it can improve ventilation capacity.

  FIG. 1 is a sectional view showing an embodiment of a bathroom blower according to the present invention, FIG. 2 is a perspective view showing a ventilation unit of the bathroom blower, and FIG. 3 is a perspective view showing an air circulation unit of the bathroom blower. FIG. 4 is an explanatory diagram showing an air flow state in the bathroom when the bathroom blower is used.

The bathroom blower 1 of this embodiment includes a ventilation unit 2 and an air circulation unit 3 formed separately from the ventilation unit 2.
The ventilation unit 2 is for taking the air in the bathroom 4 from the air inlet 21 and exhausting it from the air outlet 22 to the outside. The ventilation unit 2 has a rectangular box shape in which the bottom surface is open and the four sides and the top surface are closed. A housing 23 is provided.

An air inlet 21 that is open to the entire surface is formed on the bottom surface of the housing 23, and an exhaust port 22 is formed on one side surface. An exhaust duct 24 connected to the exhaust port 22 is extended outdoors.
The housing 23 is assembled with a ventilation fan 25 using a sirocco fan. In this case, a fan motor 25a is attached to the upper surface of the housing 23, and a fan rotor 25b that is rotationally driven by the fan motor 25a is provided inside the housing 23. Is provided.

  The housing 23 is inserted into the mounting hole 41 formed in the bathroom ceiling surface 40, and the outward flange 26 provided on the outer periphery of the bottom surface of the housing 23 is mounted around the mounting hole 41 with a screw or the like. Is attached to the bathroom ceiling surface 40.

  The air circulation unit 3 is for taking the air in the bathroom 4 from the circulation inlet 31 and returning it from the circulation outlet 32 to the bathroom 4. The bottom surface and the top surface are opened, and the four sides are formed by a wire mesh. A rectangular box-shaped casing 33 formed in substantially the same shape as the housing 23 of the ventilation unit 2 in plan view is provided.

  The casing 33 is assembled with a circulation fan 34 by a sirocco fan. In this case, a fan motor 34 a is attached to the upper surface of the casing 33, and a fan rotor 34 b that is rotationally driven by the fan motor 34 a is provided inside the casing 33. Is provided.

An open circulation inlet 31 is formed on the bottom surface of the casing 33, and the four side surfaces are closed by side plates, and circulation outlets 32 are formed at several locations on the side plates. Are provided to guide the air to the circulation outlets 32 to generate an air flow along the bathroom ceiling surface 40. In addition, a grill or louver is attached to the circulation inlet 31.
In FIG. 3, the air blowing guide 37 is provided only at some circulation outlets (two circulation outlets 32 on the front side of the drawing), but the air blowing guide 37 is also provided at other circulation outlets 32. Of course.

  A communication port 35 that is open to the entire surface is formed on the upper surface of the casing 33, and the air circulation unit 3 is connected directly to the intake port 21 of the ventilation unit 2 without using a duct or the like. And the ventilation unit 2 are connected by screws or the like. In this case, the outward flange 36 provided on the outer periphery of the bottom surface of the casing 33 and the outward flanges 26 formed on the housing 23 of the ventilation unit 2 are connected by screws or the like, so that the air circulation unit 3 and the ventilation unit 2 are integrated. It is connected to become.

  By integrally connecting the air circulation unit 3 and the ventilation unit 2 in this manner, the circulation inlet 31 of the air circulation unit 3 is connected to the ventilation air passage of the ventilation unit 2 while forming the bathroom blower 1 compactly. The air passage structure can be simplified by using it as the air intake port 27.

Further, the ventilation fan 25 of the ventilation unit 2 and the circulation fan 34 of the air circulation unit 3 are formed so that they can be independently operated independently and simultaneously operated.
Therefore, when only the ventilation fan 25 of the ventilation unit 2 is operated, as shown in FIG. 4, air is sucked into the bathroom 4 from the ventilation port 43 provided in the lower part of the bathroom door 42 (arrow A in FIG. 4). The air in the bathroom 4 is sucked into the circulation inlet 31 of the air circulation unit 3 that also serves as the air intake 27 to the ventilation air passage of the ventilation unit 2 (arrow B in FIG. 4). The interior of the bathroom 4 can be ventilated by a ventilation air passage that reaches the exhaust port 22 via the intake port 21 and is exhausted to the outside from the exhaust duct 24 (arrow C in FIG. 4).

Next, when only the circulation fan 34 of the air circulation unit 3 is operated, as shown in FIG. 4, the air in the bathroom 4 is sucked into the circulation inlet 31 of the air circulation unit 3 (arrow B in FIG. 4). Air can be circulated in the bathroom 4 by a circulation air path that is returned from the outlet 32 into the bathroom 4 (arrow D in FIG. 4).
At this time, since the circulation outlet 32 is formed so as to generate an air flow along the bathroom ceiling surface 40, drying of the bathroom inner surface from the bathroom ceiling surface 40 to the bathroom wall surface 44 can be promoted. It is possible to suppress the generation and propagation of mold due to moisture.

Further, when the ventilation fan 25 of the ventilation unit 2 and the circulation fan 34 of the air circulation unit 3 are operated simultaneously, the inside of the bathroom 4 is ventilated by the above-described ventilation air passage, and at the same time, air is circulated in the bathroom 4 by the circulation air passage. be able to.
At this time, since the ventilation unit 2 and the air circulation unit 3 are respectively provided with the blower fans (the ventilation fan 25 and the circulation fan 34), it is possible to prevent the ventilation capacity and the air circulation capacity from being lowered, and the air circulation unit. Since the three communication ports 35 are connected to the intake port 21 of the ventilation unit 2, the air supplied by the circulation fan 34 flows into the ventilation air passage, and the ventilation capacity can be improved.

Next, FIG.5 and FIG.6 is a perspective view which shows the other example of the air circulation unit of the air blower for bathrooms.
In the air circulation unit 3 of FIG. 5, a circulation outlet 32 through a wire mesh is formed entirely on four side surfaces (omnidirectional side surfaces) of the casing 33, and the air flow along the bathroom ceiling surface 40 from the circulation outlet 32. Is generated in all directions. .

In the air circulation unit 3 of FIG. 6, the circulation fan 34 is formed as an axial flow fan in which a rotary blade 34 c is attached to a fan motor 34 a, and sends air from the circulation inlet 31 toward the circulation outlet 32 and the communication opening 35. As described above, the rotary blade 34c is formed to be inclined.
Note that most of the air from the circulation inlet may be sent to the circulation outlet by setting the rotary blades of the axial fan parallel to the axial direction.

  Further, the bathroom blower of the present invention can be attached to the bathroom ceiling surface 40 or the bathroom wall surface 44, and when attached to the bathroom wall surface 44, the circulation outlet 32 of the air circulation unit 3 is connected to the bathroom wall surface 44. It will be opened to create an air flow along.

  In the bathroom blower of the present invention, the ventilation unit may be a new ventilation unit or an existing ventilation unit attached to a ceiling surface or a wall surface of the bathroom. On the other hand, an air circulation unit is attached later.

1 and 2, an opening / closing shutter 28 may be provided at the exhaust port 22 of the ventilation unit 2, and the opening / closing shutter 28 is supported so as to be closed by its own weight and opened by wind pressure. .
Therefore, when the opening / closing shutter 28 is provided, when the ventilation fan 25 is operated, the opening / closing shutter 28 is opened by the wind pressure to allow ventilation by the ventilation air passage, and when the ventilation fan 25 is stopped, Inflow of air from outside can be prevented, and inflow of cold air in winter can be prevented.
In addition, when only the circulation fan 34 is operated, a sufficient wind pressure cannot be obtained, so that the opening / closing shutter 28 is closed, and escape to the ventilation air passage is prevented, whereby the air circulation air passage can be efficiently circulated. .

As shown in FIG. 1, a heater 39 as an air heating means may be provided in the air circulation unit 3 on the leeward side of the circulation fan 34, and in this case, a portion in front of the circulation outlet 32 of the air circulation unit 3. It attaches along the inner surface of the side surface of the casing 33.
When the heater 39 is provided in this manner, the air circulating in the bathroom 4 can be warmed by the air circulation unit 3 and the bathroom can be heated.

It is sectional drawing which shows the Example of the air blower for bathrooms of this invention. It is a perspective view which shows the ventilation unit of this air blower for bathrooms. It is a perspective view which shows the air circulation unit of this air blower for bathrooms. It is explanatory drawing which shows the air flow state in a bathroom when this air blower for bathrooms is used. It is a perspective view which shows the other example of the air circulation unit of the air blower for bathrooms. It is a perspective view which shows the other example of the air circulation unit of the air blower for bathrooms.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bathroom blower 2 Ventilation unit 21 Intake port 22 Exhaust port 23 Housing 24 Exhaust duct 25 Ventilation fan 25a Fan motor 25b Fan rotor 26 Outward flange 27 Air intake port 28 Opening / closing shutter 3 Air circulation unit 31 Circulation inlet 32 Circulation outlet 33 Casing 34 Circulating fan 34a Fan motor 34b Fan rotor 34c Rotating blade 35 Communication port 36 Outward flange 37 Blower guide 39 Heater 4 Bathroom 40 Bathroom ceiling surface 41 Mounting hole 42 Bathroom door 43 Ventilation port 44 Bathroom wall surface

Claims (4)

A ventilation unit that takes in the air in the bathroom from the intake port and exhausts it from the exhaust port to the outside by a ventilation fan;
It is equipped with an air circulation unit that takes air in the bathroom from the circulation inlet by a circulation fan and returns it to the bathroom from the circulation outlet,
The circulation outlet of the air circulation unit is opened to generate an air flow along the bathroom ceiling surface or bathroom wall surface,
A communication port to the ventilation unit is formed in the air circulation unit, and the air circulation unit and the ventilation unit are connected so that the communication port is directly connected to the intake port of the ventilation unit.
The ventilation fan for a bathroom, wherein the ventilation fan of the ventilation unit and the circulation fan of the air circulation unit are formed so that they can be operated independently and simultaneously.   The bathroom air blower according to claim 1, wherein the ventilation unit is an existing ventilation unit attached to a ceiling surface or a wall surface of the bathroom, and an air circulation unit is attached to the existing ventilation unit retrofitted. .   The bathroom air blower according to claim 1 or 2, wherein an opening / closing shutter is provided at an exhaust port of the ventilation unit.   The bathroom air blower according to claim 1, 2 or 3, wherein an air heating means is provided on the leeward side of the circulation fan in the air circulation unit.

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