JPH11141944A - Ventilator for duct - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilator for a duct having an intake structure, wherein a flow rate of each intake structure is regulable only by a switch connected to a body. SOLUTION: In a ventilator for a duct having one exhaust structure 2 and a plurality of intake structures 3, 4, and 5, individual regulation of intake air flow rate is effected on respective intake structures 3, 4, and 5, and air flow regulation members 14, 15, and 16 formed integrally with motor-driven dampers 11, 12, and 3 arranged at the intake structures 3, 4, and 5, respectively, having respective ventilation areas regulated to a preset value through electrical drive of a damper with only a switch 17 connected to a ventilator body 6.

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 duct, which is installed behind a ceiling and connects an exhaust duct and a suction duct to ventilate a room.

[0002]

2. Description of the Related Art An example of a conventional ventilation fan for a duct will be described with reference to FIG.

As shown in the figure, a plurality of different rooms 101, 10
In the case of a multi-room ventilator with a single blower that ventilates 2,103 with a single blower 104, in order to set the ventilation air volume for each room 101,102,103, each air intake structure 105,106,10
The ventilation air volume was adjusted by individually operating the air volume adjusting members 108, 109, 110 provided in 7 to make the ventilation area an appropriate value. The method of adjusting the ventilation area of the intake structures 105, 106, and 107 is such that the ventilation area is adjusted by sliding the air volume adjustment member 109 provided separately from the electric damper 111 incorporated in the intake structure 106 up and down. The intake structures 105 and 107 were formed in the same manner, and the ventilation airflow in each of the rooms 101, 102 and 103 was adjusted.

[0004]

In such a conventional ventilation fan for a duct, when adjusting the ventilation airflow, each intake structure is adjusted.
Since the air volume adjusting members 108, 109, 110 of 105, 106, 107 need to be individually adjusted, the setting operation is complicated and troublesome.
In addition, there is a problem that it is difficult to adjust the setting again due to construction conditions and the like.

SUMMARY OF THE INVENTION The present invention is to solve the above-mentioned problems, and to provide a ventilation fan for a duct which can easily obtain a desired ventilation air volume only by operating a switch when increasing or decreasing the ventilation air volume in each room. As a first object.

It is a second object of the present invention to set the constant ventilation air volume corresponding to the total floor area of the house only by operating the control means.

A third object of the present invention is to make it possible to increase or decrease the amount of ventilation air in a room where cold draft is hardly perceived and to reduce the cost.

[0008]

The duct ventilation fan of the present invention is provided with a plurality of intake structures provided with one exhaust structure and an electric damper integrated with an electric damper for adjusting the amount of air. A ventilation fan main body provided with a blower, a plurality of intake ducts communicating the respective intake structures with the plurality of rooms, and a switch for operating the respective intake structures. The configuration is such that the adjustment of... Can be performed.

According to the present invention, it is possible to provide a ventilation fan for a duct which can easily obtain a desired ventilation air volume only by operating a switch when increasing or decreasing the ventilation air volume in each room.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is to provide a plurality of air intake structures provided with one exhaust structure and an electric damper for adjusting an air flow and a plurality of air flow adjusting members. A ventilation fan main body provided with a blower, a plurality of intake ducts communicating the respective intake structures with the plurality of rooms, and a switch for operating the respective intake structures, and ventilation of each room by operating the switches. It is a configuration of a duct ventilation fan that adjusts the air volume, and when adjusting the ventilation air volume of each room, the air volume adjustment member of each intake structure can be individually adjusted only by operating the switch, and the ventilation area This has the effect that the ventilation air volume can be adjusted without requiring the operation of setting the air flow.

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 and 2, one exhaust structure 2 and a plurality of intake structures 3,
A single blower 7 is provided in a ventilation fan main body 6 provided with the air intake ducts 3a, 4a, 5a.
To rooms 8, 9, and 10 via.

The intake structures 3, 4, and 5 are provided with electric dampers 11, 12, 13, and electric dampers 11, 1,
The ventilation fan body 6 is connected to a switch 17 for individually increasing or decreasing the ventilation air volume of each of the air intake structures 3, 4, and 5.

In the above configuration, for example, rooms 8, 9, 1
When it is desired to increase the ventilation airflow in the room 8 within the range of 0, the switch 17 is operated to operate the electric damper 11 of the intake structure 3, and the airflow adjustment member 14 provided integrally with the electric damper 11 is operated. As a result, the ventilation area in the intake structure 3 increases, the amount of intake air by the blower 7 provided in the ventilation fan body 6 increases, and the amount of ventilation air in the room 8 increases through the intake duct 3a.

Further, the ventilation air volume of the other rooms 9 and 10 can be adjusted similarly. Next, a case where the duct ventilation fan configured as described above is installed in the house shown in FIG. 2 will be described. The switches are 8A, 9A, 10
A and distributed as switches 17A, 17B and 17C.

The house 18 is a highly airtight house, and is provided with a constant-ventilation system for ventilating the sanitary zone to provide ventilation for the entire house. Such a constant ventilation air volume according to the total floor area of the house 18 is such that a small amount of air is blown from each room, bathroom 8A, lavatory 9A, and toilet 10A through each air intake structure 3A, 4A, 5A to the blower 7A. As a result, the air is discharged outside through the exhaust structure 2A. However, when the user needs to increase the ventilation air volume of the bathroom 8A for the purpose of drying inside the bathroom 8A such as after bathing, by turning on the switch 17A of the bathroom 8A connected to the ventilation fan main body 6A, In conjunction with the control of the blower 7A to the total ventilation flow including the increase in the ventilation flow of the bathroom 8A, the electric damper 11A of the intake structure 3A connected to the bathroom 8A is driven, and the electric damper 11A is driven. By operating the air flow adjusting member 14A having an integral structure, the ventilation area becomes a target value and a required ventilation air flow is obtained. The same operation can be performed in the toilet 9A and the toilet 10A.

As described above, according to the duct ventilation fan of the first embodiment of the present invention, when it is necessary to increase or decrease the amount of ventilation air in one room, only the switch connected to the ventilation fan main body 6A is used for the intake structure. The airflow adjusting member operates to set the ventilation area to an appropriate value, so that a required ventilation airflow can be obtained.

(Embodiment 2) As shown in FIG. 3, a single blower 7B is installed in the back of the ceiling 1B, and is provided in one exhaust structure 2B, a plurality of intake structures 3B, 4B, 5B, and a ventilation fan body 6B. In the ventilation fan for a duct that ventilates the rooms 8B, 9B, 10B that are connected to the intake structures 3B, 4B, 5B, the electric dampers 11B, 12B, 13B provided in the intake structures 3B, 4B, 5B, and The electric dampers 11B, 12B, 13B and the air volume adjusting members 14B, 15B, 16B having an integral structure are electrically connected to each other by operating the switch 17D for increasing or decreasing the ventilation air volume of the intake structures 3B, 4B, 5B provided in the ventilation fan main body 6B. The dampers are driven, and the air volume adjusting members 14B, 15B, 16B
Configures a ventilation fan for a duct such that the ventilation areas of the intake structures 3B, 4B, and 5B are varied to adjust the intake air volume in each room.

In the above configuration, if the house is a highly airtight house and the house is provided with a constant ventilation system for ventilating the entire house by ventilating the sanitary zone, the constant ventilation air volume according to the total floor area of the house is assumed. The setting is performed by a switch 17D provided on the ventilation fan main body 6B. By operating the switch 17D, the blower 7B is controlled to the desired constant ventilation air volume, and the air intake structures 3B, 4B, 5B
The electric dampers 11B, 12B, and 13B provided in the air conditioner are driven to change the ventilation area, so that each intake structure 3B,
By adjusting the ventilation air volume of 4B and 5B, the intended constant ventilation air volume can be increased or decreased.

As described above, according to the duct ventilation fan according to the second embodiment of the present invention, the setting of the constant ventilation air volume corresponding to the total floor area of the house is complicated and troublesome by individually setting the air volume adjusting members. The operation can be dealt with only by operating the switch 17D provided on the ventilation fan main body 6B without requiring any operation.

In addition, by responding to only one of the intake structures 3B, 4B, and 5B, it is possible to respond in a room where cold draft is hardly perceived. In addition, the number of components such as the electric damper is reduced, so that cost reduction can be realized.

[0021]

As is clear from the above embodiment,
When it is necessary to increase or decrease the amount of ventilation air in each room, it is possible to provide a ventilation fan for a duct that can obtain a desired amount of ventilation air only by operating a switch connected to the ventilation fan body.

Further, the switch connected to the ventilation fan main body does not require a complicated and troublesome setting operation of individually setting the air volume adjusting member for setting the constant ventilation air volume corresponding to the total floor area of the house to be ventilated. By controlling the air blower in the main body by the operation of, the ventilation air volume can be constantly set by adjusting the ventilation air volume in each room.

Further, by increasing or decreasing each ventilation air flow at only one of the plurality of intake structures, it is possible to cope with a room in which cold draft is hardly perceived, thereby reducing the number of parts and reducing cost. Can be realized.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a configuration of a duct ventilation fan according to a first embodiment of the present invention.

FIG. 2 is a schematic view showing a state where the duct ventilation fan is installed in a house.

FIG. 3 is a schematic diagram showing a configuration of a duct ventilation fan according to a second embodiment of the present invention.

FIG. 4 is a schematic diagram showing a configuration of a conventional duct ventilation fan.

[Explanation of symbols]

 2 exhaust structure 2A exhaust structure 2B exhaust structure 3 intake structure 3A intake structure 3B intake structure 3a intake duct 4 intake structure 4A intake structure 4B intake structure 4a intake duct 5 intake structure 5A intake structure 5B intake structure 5a intake duct 6 ventilation fan body 6B ventilation fan Main unit 7 Blower 7A Blower 7B Blower 8 Room 8A Bathroom 8B Room 9 Room 9A Washroom 9B Room 10 Room 10A Restroom 10B Room 11 Electric damper 11A Electric damper 11B Electric damper 12 Electric damper 12A Electric damper 12B Electric damper 12B 13A Electric damper 13B Electric damper 14 Air volume adjustment member 14A Air volume adjustment member 14B Air volume adjustment member 15 Air volume adjustment member 15A Air volume adjustment member 15B Air volume adjustment member 16 Air volume adjustment member 16A Air volume adjustment unit Material 16B Airflow adjusting member 17 Switch 17A Switch 17B Switch 17C Switch 17D Switch 18 House

Claims (3)

[Claims] 1. A ventilation fan body provided with a plurality of air intake structures provided with one air exhaust structure and an electric damper for adjusting an air volume and an electric air volume adjusting member, and a single air blower provided therein, and each of the air intake structures. And a plurality of intake ducts that communicate the plurality of rooms, and a switch that operates each of the intake structures,
A ventilation fan for a duct, wherein the ventilation air volume is adjusted for each room by operating the switch. 2. A ventilation fan body provided with a plurality of air intake structures provided with one exhaust structure and an electric damper for adjusting an air volume and an electric air volume adjusting member, and a single blower provided therein, and each of the air intake structures. And a plurality of air intake ducts communicating with the plurality of rooms, and a switch for controlling the air blower so that a constant ventilation air volume corresponding to the total floor area of the house is provided, and the air intake structure is adjusted by operating the switch. A ventilation fan for ducts that is designed to constantly adjust the ventilation air volume in each room. 3. The duct ventilation fan according to claim 2, wherein the constant ventilation air volume of each room is adjusted by adjusting an intake structure communicating with one room.