JP2000111110A - Ventilation fan for window frame sash - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilation fan for a window frame sash to prevent a lowering of ventilation efficiency and reduce the generation of noise. SOLUTION: This ventilation fan comprises a fan motor 6 disposed such that an axis is extended approximately in parallel to the upper stile 2; and a body 8 having an opening 3 on the indoor side communicated with the fan motor 6 through a duct 7. By incorporating the body 8 in the upper stile 2 of the window sash in which an opening 1 on the outdoor side is formed, an axial flow fan 5 is arranged at the fan motor 6, lowering of ventilation efficiency is prevented from occurring, and by forming an air flow passage approximately in an S-shape the generation of noise is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation fan for a window frame sash which is incorporated in an upper frame of a window frame sash widely used in general homes and the like.

[0002]

2. Description of the Related Art In recent years, in order to improve the environment by cooling and heating a living area in a room, windows using a window frame sash capable of improving airtightness have become widespread. There is a need for ventilation, and there is an increasing demand for a ventilation fan for a window frame sash using a window frame sash that can reduce noise and efficiently ventilate.

Conventionally, a ventilation fan for a window frame sash of this type has been known as shown in FIG. Hereinafter, the configuration will be described with reference to FIG.

[0004] As shown in the figure, a glass window 101 is formed on the upper side of a window frame sash 102 provided so as to be able to move laterally and has a wide width along the width of the window. A blower 106 including a cross flow fan 104 having a long length in a shape flowing across and a casing 105 forming an air flow of the cross flow fan 104 is incorporated.

When the blower 106 is operated, the indoor air is exhausted to the outside by the cross flow fan 104 as shown by the arrow.

[0006]

In such a conventional ventilation fan for a window frame sash, since the fan used for the blower 106 is the cross flow fan 104, when used in a place with a high degree of sealing due to its characteristics, the ventilation is difficult. As a result, there is a problem in that, as the pressure in the room becomes poor, the cross flow fan 104 runs idle and a predetermined ventilation rate cannot be obtained.

In addition, since the air flow path 107 is substantially straight, there is another problem that the noise generated by the cross flow fan 104 and the noise outside the room are easily transmitted to the room.

In addition, since the long lateral flow fan 104 is used, the indoor opening 108 and the outdoor opening 109 forming the air flow path 107 become large, and there is a problem that insects easily enter the room when the operation is stopped.

SUMMARY OF THE INVENTION The present invention solves the above-described problems, and can prevent a decrease in ventilation efficiency, reduce noise, and prevent a bug from entering a room by a ventilation fan for a window frame sash. The purpose is to provide.

[0010]

In the ventilation fan for a window frame sash according to the present invention, a fan motor whose axis is disposed substantially parallel to the upper frame of the window frame sash communicates with the fan motor via a duct. A main body provided with an indoor side opening,
The main body is incorporated in an upper frame of the window frame sash having an outdoor opening.

According to the present invention, it is possible to provide a ventilation fan for a window frame sash capable of preventing a reduction in ventilation efficiency and reducing noise.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a fan motor whose axis is disposed substantially parallel to the upper frame of a window frame sash, and a chamber which communicates with the fan motor via a duct. And a main body having an inner opening, wherein the main body is incorporated in the upper frame of the window frame sash having the outdoor opening, and the axis is disposed parallel to the upper frame of the window frame sash. By providing a fan motor, an axial fan and a centrifugal fan can be used as fans,
Since the air taken into the fan motor from the indoor opening through the duct is exhausted from the outdoor opening, the air flow path is formed in a substantially S-shape, thereby preventing a reduction in ventilation efficiency and preventing noise. It has the effect that reduction can be achieved.

Hereinafter, an embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG.

(Embodiment 1) As shown in FIGS. 1 to 3, a flat frame 4 having an indoor opening 3 formed in a shape that can be attached to an upper frame 2 of a window frame sash provided with an outdoor opening 1. And a fan motor 6 provided with an axial fan 5 so that the axis is disposed substantially parallel to the upper frame 2 on the inner side of the frame 4, and the fan motor 6 communicates with the indoor opening 3. The main body 8 is formed by providing a substantially L-shaped duct 7.

A shutter 9 is electrically connected to the main body 8.
An electric opening / closing means 10 made of a solenoid or the like for opening and closing the louver 12 is provided. A shutter unit 14 is provided which is engaged with the electric opening / closing means 10 and operates in conjunction with the operation / stop of the fan motor 6.

In the above configuration, the fan motor 6 and the duct 7 of the main body 8 are inserted into the upper frame 2 through the mounting opening 15 provided in the upper frame 2, and the frame 4 of the main body 8 is mounted on the upper frame 2. When the louver 12 is operated after being assembled via the claw 11, the fan motor 6 is driven and the shutter 9 is opened via the electric opening / closing means 10 so that the room air is released from the ventilation port 13 of the louver 12 through the shutter 9. The air passes through the space, is sucked into the duct 7 from the indoor side opening 3, and the air flows in the axial direction of the fan motor 6 and is radiated into the upper frame 2 by the fan motor 6. The air is discharged outside and exhausted.

At this time, when the exhaust air flow passes through the indoor opening 3, it is taken in from the direction substantially perpendicular to the fan motor 6 provided in the axial direction, and after flowing in the axial direction by the fan motor 6, the air flow in the chamber It flows so as to be exhausted from the outer opening 1, and flows almost in an S shape as a whole flow.

At the time of operation / stop, the shutter 9 is opened and closed in conjunction with the fan motor 6.

Further, as shown in FIG.
Is provided in the indoor opening 3 of the main body 8A, and the electric opening / closing means 10A is provided via the connecting rod 15, the same effect as described above can be obtained.

As described above, according to the ventilation fan for the window frame sash of the present invention, the fan motor 6 provided with the axial fan 5 whose axis is disposed substantially parallel to the upper frame 2 of the window frame sash, and the duct 7
The main body 8 having the indoor side opening 3 communicating with the main body 8 is incorporated into the upper frame 2 having the outdoor side opening 1.
The operation of the fan motor 6 causes the fan motor 6 to pass through the duct 7 through the indoor opening 3 which is substantially perpendicular to the axial direction.
The use of the axial flow fan 5 which is more resistant to poor pressure than the cross flow fan by forming an air flow path which is sucked into the fan motor and is radiated at right angles from the fan motor 6 and exhausted from the outdoor opening 1 As a result, the ventilation efficiency at the time of poor pressure is prevented from lowering, the air flow path is formed in a substantially S-shape, and the axial fan 5 is moved away from the indoor side opening 3 so that the fan motor 6 The generated noise and the noise that flows in from the outside collide with the wall of the air flow path and are reduced, so that the noise can be reduced.

Further, since the shutter 9 for opening and closing the indoor opening 3 is provided, when the operation of the fan motor 6 is stopped,
The indoor opening 3 is closed by the shutter 9 to prevent insects and the like from entering the room.

Further, since the electric opening / closing means 10 for opening / closing the shutter 9 is provided, the electric opening / closing means 10 can be interlocked with the operation / stop of the fan motor 6 and the usability can be improved.

In the first embodiment, the indoor opening 3 has been described as an intake port. However, by inverting the fan motor 6, air is supplied from the outdoor opening 1 and exhausted from the indoor opening 1. Needless to say, it can be used as a ventilation fan.

Although the axial fan 5 is used as the fan for the fan motor 6, it goes without saying that a centrifugal fan that is resistant to poor pressure may be used.

(Embodiment 2) As shown in FIG. 4, the start / stop of the fan motor 6 and the opening / closing of the shutter 9 are
Detecting the atmosphere in the room at the installation location, or detecting the presence or absence of a person, and performing the control via the control means 16, the ventilation fan for the window frame sash installed in the toilet includes:
The control means 16 controls the operation / stop of the fan motor 6 and the opening / closing of the shutter 9 based on a detection signal of a human sensor (not shown) for detecting a person entering the toilet.
Is provided.

A ventilation fan for a window frame sash installed in a washroom or the like is provided with a start / stop of the fan motor 6 and a shutter 9 based on a detection signal of a humidity sensor (not shown) for detecting moisture generated during face washing. Control means 16 is provided to control opening and closing.

A ventilation fan for a window frame sash installed on a staircase, a hall, or the like has a fan motor 6 that starts and stops and a shutter 9 that opens and closes based on a detection signal of a temperature sensor (not shown) that detects warm air. Control means 1 to control
6 is provided.

In the above configuration, when the ventilation fan for the window frame sash is installed, if the installation location is a toilet, a device provided with control means 16 for controlling based on a detection signal of a human sensor is used. Drive according to the state of entering and leaving the toilet.

When the installation location is a washroom, a device provided with control means 16 for controlling based on the detection signal of the humidity sensor is used, and the operation is performed in accordance with the state of moisture generated during face washing. To

When the installation location is a staircase or a hall, a device provided with a control means 16 for controlling based on a detection signal of a temperature sensor is used to discharge hot air from an area other than a living room in summer. .

As described above, according to the window frame sash ventilation fan of the present invention, the operation / stop of the fan motor 6 and the opening / closing of the shutter 9 are performed through the control means 16 for detecting and controlling the atmosphere in the room at the installation location. When the installation location is a toilet, washroom, staircase, hall, etc., the window frame that corresponds to the environment of the installation location based on the detection signal of the human sensor, humidity sensor, or temperature sensor A ventilation fan for a sash can be provided, and efficient ventilation, prevention of generation of dew and mold, or improvement of an indoor environment can be achieved.

[0032]

As is apparent from the above embodiments, according to the present invention, a fan motor whose axis is disposed substantially parallel to the upper frame of the window frame sash communicates with the fan motor via a duct. A main body provided with an indoor side opening, and the main body is incorporated into the window frame sash upper frame provided with an outdoor side opening, so that a reduction in ventilation efficiency can be prevented and noise can be reduced. A ventilating fan for a window frame sash that can be provided.

Further, since a shutter for opening and closing the indoor side opening is provided, insects and the like can be prevented from entering the room.

Further, since the electric opening / closing means for opening / closing the shutter is provided, usability can be improved.

Also, since the operation / stop of the fan motor and the opening / closing of the shutter are performed through the control means,
A ventilation fan for a window frame sash corresponding to the environment of the installation location can be installed.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a configuration of a ventilation fan for a window frame sash according to a first embodiment of the present invention.

FIG. 2 is a partially broken perspective view showing the configuration of the ventilation fan for the window frame sash.

FIG. 3 is a partially broken perspective view showing another configuration of the ventilation fan for the window frame sash.

FIG. 4 is a partially broken perspective view showing a configuration of a ventilation fan for a window frame sash according to a second embodiment of the present invention.

FIG. 5 is a cross-sectional view illustrating a configuration of a conventional ventilation fan for a window frame sash in a state of being left unattended.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outdoor opening 2 Upper frame 3 Indoor opening 6 Fan motor 7 Duct 8 Main body 8A Main body 9 Shutter 9A Shutter 10 Electrical opening / closing means 10A Electrical opening / closing means 16 Control means

Claims (4)

[Claims] 1. A main body provided with a fan motor whose axis is disposed substantially parallel to an upper frame of a window frame sash, and a main body provided with an indoor side opening communicating with the fan motor through a duct. A ventilation fan for a window frame sash configured to be incorporated in an upper frame of the window frame sash having an outdoor opening. 2. The ventilation fan for a window frame sash according to claim 1, further comprising a shutter for opening and closing the indoor side opening. 3. The ventilation fan for a window frame sash according to claim 2, further comprising an electric opening / closing means for opening / closing a shutter. 4. The ventilation fan for a window frame sash according to claim 2, wherein the operation / stop of the fan motor and the opening / closing of the shutter are performed via control means.