JP2724664B2 - Automatic cleaning ventilation fan - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic cleaning and ventilating fan for automatically cleaning a filter member in a ventilation fan.

[0002]

2. Description of the Related Art Conventionally, a ventilation fan, which is mounted on a wall or ceiling of a building and used for indoor ventilation by introducing outside air, is provided in an air flow path such as an air inlet and an exhaust port of the ventilation fan. A filter member is provided for removing dust and insects in the air by a filtering action to remove dust and insects, thereby purifying the air and sending it to the indoor side.

[0003] However, dust and insects adhere to the filter member, and the adhered matter causes clogging of the filter member and lowers ventilation efficiency. Therefore, maintenance such as cleaning is periodically performed to eliminate the clogging. There is a drawback that the work is required, and there is a drawback that the deposits removed during the maintenance work are scattered and contaminate the indoor side.

[0004]

SUMMARY OF THE INVENTION The present invention provides a mechanical peeling force by a brush, an aerodynamic peeling force by compressed air, and a binding force of these to an adhering substance to remove dust and insects adhering to a filter member. While efficiently removing deposits,
It is an object of the present invention to provide an automatic cleaning and ventilating fan for preventing contamination on the indoor side due to scattering of the deposit when removing the deposit.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems such as clogging of a filter member based on the prior art, and a brush is moved to contact the filter member with foreign matter such as dust and insects adhering to the filter member. In addition, the compressed air is moved and sprayed to the filter member to increase the efficiency of removing adhering substances, and to prevent contamination to the indoor side due to scattering of the adhering substances at the time of removing the adhering substances by preventing the ventilation blades for intake air from rotating in the reverse direction to prevent them. SUMMARY OF THE INVENTION It is an object of the present invention to provide an automatic cleaning and ventilating fan having the above-mentioned object, and to solve the above-mentioned drawbacks.

An automatic cleaning ventilation fan according to the present invention is a ventilation fan equipped with a motor for rotating a ventilation blade for air intake, and includes a filter member, a brush, and a blow nozzle.

The filter member is provided fixed to the ventilation fan or rotatably provided. The one that comes into contact with the front or back surface of the filter member is a brush, and the one that blows out compressed air to the filter member side. It is a blow nozzle.

When the filter member is fixed, the brush and the blow nozzle are provided so as to be movable, and when controlling the movement of the brush and the blow nozzle, the ventilation blade is controlled to rotate in the reverse direction, and when the filter member is rotatable. When the rotation of the filter member is controlled by fixing the brush and the blow nozzle, the rotation of the ventilation blade is controlled in the reverse direction. Or the direction of compressed air injection from the blow nozzle.
The bra on the front side in the rotation direction when rotating the filter member.
It is oriented so that it is jetted toward the tip of the machine.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
The automatic cleaning and ventilation fan 1 is to be mounted on an opening B provided in a wall A, a ceiling or the like of a building, and includes a motor 4 in which a ventilation blade 3 for intake is mounted in a frame 2. The air inlet 2a at the rear of the frame 2 is attached to the opening B.

A filter member 5 for removing dust such as mesh wire mesh, filter paper, foamed plastic having open cells and the like is fixedly or rotatably provided at the air exhaust port 2b at the front portion of the frame 2, and the filter member 5 is provided. A cleaning mechanism 6 is provided for removing extraneous matter such as dust and insects adhered to the surface.

Reference numeral 7 denotes an air introduction duct having a sound deadening function, which is mounted on an opening B provided on the wall A. A cleaning mechanism 6 may be provided at the air introduction port 7a of the air introduction duct 7, and in other words, the cleaning mechanism 6 It is also possible to provide the filter member 5 and the cleaning mechanism 6 in the air flow path with the outdoor side.

First, as shown in FIGS. 1 to 9, a first cleaning mechanism 6a of the cleaning mechanism 6 has an air exhaust port 2b at the front of the frame 2.
The filter member 5 is fixed, and a blow nozzle 10 having hollow single tubes 9, 9a,... Connected in a cross shape by a support stay 8 is rotatably supported outside the frame 2 in front of the filter member 5. .

The blow nozzle 10 is not limited to a structure in which the hollow single tubes 9, 9a... Are connected in a cross shape. For example, the blow nozzles 10 can be used as the hollow single tubes 9, 9a. is there.

The hollow single tubes 9, 9a... Of the blow nozzle 10 are provided with injection holes 11, 11a. At the same time, a supply pipe 12 from a compressed air source (not shown) is connected, and a drive source 13 which is a rotary actuator connected to the supply pipe 12 and the blow nozzle 10 are connected. The blow nozzle 10 is controlled to reciprocate at a predetermined angle.

Further, the injection ports 11, 11 of the blow nozzle 10
a. Regarding the injection direction of the compressed air from
The brush is directed so as to be sprayed toward the tip of the brush 14 on the rear side in the moving direction at the time of movement , or the spray of the blow nozzle 10 is performed.
The direction of compressed air injection from the ports 11, 11a.
-Brush 14 tip on the front side in the rotation direction when member 5 rotates
It is directed so that it is jetted to the end side.

Reference numeral 14 denotes a brush which comes into contact with the filter member 5, and the brush 14 is a single hollow tube 9, 9a.
May be attached to the side surface of the brush, or may be attached to the lower part of the hollow single tubes 9, 9a.

Next, a second example of another embodiment of the cleaning mechanism 6 will be described.
As shown in FIGS. 10 and 11, the basic structure of the cleaning mechanism 6b is the same as that of the first cleaning mechanism 6a, and the first cleaning mechanism 6a includes a frame body in front of the filter member 5. While the second cleaning mechanism 6 b is disposed outside the frame member 2, all the components are arranged behind the frame member 2 behind the filter member 5.
It is arranged inside.

Next, a third embodiment, which is another embodiment of the cleaning mechanism 6, will be described.
As shown in FIGS. 12 and 13, the basic structure of the cleaning mechanism 6c is the same as that of the first cleaning mechanism 6a. A support stay 8 is provided inside the frame 2 behind the filter member 5. A cross-shaped brush holder 15 on which the brush 14 is mounted is rotatably supported, and the brush holder 15
The blow nozzle 10 is disposed outside the frame 2 in front of the filter member 5 facing the filter member 5, and the blow nozzle 10 and the brush holder 15 are connected.

Next, a fourth embodiment of the cleaning mechanism 6, which is another embodiment, will be described.
As shown in FIGS. 14 and 15, the basic structure of the cleaning mechanism 6d is the same as that of the first cleaning mechanism 6a, and a support stay 8 is provided outside the frame 2 in front of the filter member 5. A cross-shaped brush holder 15 having a brush 14 mounted thereon is provided inside the frame 2 behind the filter member 5 facing the blow nozzle 10 while rotatably supporting the blow nozzle 10. The brush holder 15 and the blow nozzle 10 are connected.

Next, a fifth embodiment, which is another embodiment of the cleaning mechanism 6, will be described.
As shown in FIGS. 16 and 17, the basic structure of the cleaning mechanism 6e is the same as that of the first cleaning mechanism 6a, and the rotary actuator of the drive source 13 in the first cleaning mechanism 6a is geared. Instead of the motor, the rotation of the blow nozzle 10 is controlled in a fixed direction by the gear motor.

Since the rotation of the blow nozzle 10 is controlled, the supply pipe 12 connected to the blow nozzle 10
Is connected to the rotation axis of the blow nozzle 10 via a rotatable joint (not shown) to supply compressed air to the blow nozzle 10.

Next, a sixth embodiment, which is another embodiment of the cleaning mechanism 6, will be described.
As shown in FIGS. 18 and 19, the basic structure of the cleaning mechanism 6f is the same as that of the first cleaning mechanism 6a, except that the filter member 5 is attached to the air exhaust port 2b at the front of the frame 2. Is rotatably supported, and is connected to a drive shaft of a geared motor which is a drive source 13 mounted on a support stay 8 outside the frame body 2 in front of the air exhaust port 2b.
13 controls the rotation of the filter member 5 in a certain direction.

The brush 14 is mounted on a stay 8a of a support stay 8 fixed to the frame 2, and the stay 8a is formed hollow to provide injection ports 11, 11a. And

Although a number of embodiments have been described for the cleaning mechanism 6 as described above, the present invention is not limited to such embodiments, and in short, the positions of the brush 14 and the blow nozzle 10 are moved with respect to the filter member 5. By adopting a possible configuration, the object of the present invention is achieved, and a suitable combination other than the combination of the above embodiments is possible. For example, the sixth cleaning mechanism 6f of the sixth embodiment As a modified example, the support stay 8, the blow nozzle 10, the driving source 1
3. There is a combination in which all the brushes 14 are arranged inside the frame 2.

Next, the operation of the automatic cleaning and ventilating fan according to the present invention will be described. Normally, the motor 4 is controlled to rotate in the forward direction, and is passed through the air introducing duct 7 by the intake ventilation blade 3 mounted on the motor 4. Air inlet 2a of frame 2
Is passed through the filter member 5 attached to the air exhaust port 2b to remove dust, insects, and the like in the air by the filtering action of the filter member 5, and supply purified air to the building.

Thereafter, when the filter member 5 is operated for a predetermined time, the filter member 5 is clogged with a large amount of foreign substances such as dust and insects, so that the filter member 5 is automatically cleaned at predetermined time intervals. First, the cleaning of the first to fourth cleaning mechanisms 6a to 6d will be described. First, after the motor 4 is stopped, the compressed air from the compressed air source is supplied to the drive source 13 including the blow nozzle 10 and the rotary actuator. When supplying the air, the motor 4 is controlled to rotate in the reverse direction to reverse the normal air flow.

That is, the hollow single tubes 9, 9 of the blow nozzle 10
, compressed air is injected from the injection ports 11, 11 a to the filter member 5 side, and the blow nozzle 10 connected to the drive source 13 is controlled to reciprocate at a predetermined angle, so that the brush 14 By moving the filter member 5 while being in contact therewith, a mechanical peeling force is applied to the deposit on the filter member 5 .

Further , the fuel is injected from the injection ports 11, 11a...
Gives aerodynamic peeling force to the deposits with compressed air,
It adhered to the filter member 5 by the synthesis of this peeling force.
The dust is removed, and the removed dust is rotated in the reverse direction of the motor 4.
The air inlet 2a, the air inlet duct
From the door 7 to the outside.

Next, the fifth cleaning mechanism 6e is omitted here because the drive source 13 for controlling the reciprocating movement of the blow nozzle 10 by a predetermined angle is merely replaced by a geared motor capable of controlling the rotation in a fixed direction. I do.

Next, regarding the sixth cleaning mechanism 6f, after the motor 4 is first stopped, the compressed air from the compressed air source is supplied to the blow nozzle 10, and the gear motor of the drive source 13 is operated. When the rotation of the filter member 5 is controlled in a certain direction, the motor 4 is controlled to rotate in the reverse direction to reverse the flow of the normal air, thereby producing the same effect as described above.

[0031]

In summary, the present invention provides a ventilation blade 3 for intake air.
A ventilation fan having a motor 4 for rotating the inside thereof and a filter member 5 provided in an air flow path,
When the brush 14 that comes into contact with the front surface or the back surface of the filter member 5 is movably provided, and the movement of the brush 14 is controlled,
Since the ventilation blades 3 for intake are controlled to rotate in the reverse direction, the brush 14 moves while being in contact with the filter member 5, thereby removing the attached matter of the filter member 5 by applying a mechanical peeling force. In addition, since the removed deposits are discharged to the outside of the room by the reverse flow of the reverse rotation control of the motor 4, contamination to the indoor side due to scattering of the deposits at the time of removing the deposits can also be prevented.

Further, a blow nozzle 10 for ejecting compressed air to the filter member 5 side is provided movably with respect to the filter member 5, and when controlling the movement of the blow nozzle 10, the suction
The ventilation blades 3 are controlled to rotate in the reverse direction, so that the adhering matter on the filter member 5 can be removed by applying aerodynamic peeling force to the adhering air by the compressed air injected. An effect similar to the above is achieved.

A brush 14 for movably contacting the front or back surface of the filter member 5 is provided, and a blow nozzle 10 for blowing compressed air to the filter member 5 side.
Is provided movably with respect to the filter member 5, and the brush 1
When controlling the movement of the blow nozzle 4 and the blow nozzle 10, the ventilation blade 3 is controlled to rotate in the reverse direction , and the pressure from the blow nozzle 10 is controlled.
The direction of the compressed air is determined by the direction of movement of the brush 14
The brush is directed so as to be sprayed toward the tip of the brush 14 on the rear side.
Since, in addition to the same Naru effect as described above, the filter member 5
A mechanical peeling force and an aerodynamic peeling force can be applied to the deposits, and therefore, the deposits on the filter member 5 can be efficiently removed by combining these peeling forces.

Also, the filter member 5 is provided rotatably,
A brush 14 that is in contact with the front or back surface of the filter member 5 is fixed, and compressed air is supplied to the filter member 5.
Fixedly blow nozzle 10 for ejecting the side, when the rotation control of the filter member 5, while the reverse rotation control ventilation vanes 3, off the injection direction of the compressed air from the blow nozzle 10
The brush on the front side in the rotation direction when the ilter member rotates 5 times
14 is directed so as to be jetted to the tip end side , the same effect as described above can be obtained, and the number of the consumable brushes 14 can be minimized by controlling the rotation of the filter member 5. Therefore, the practical effects are extremely large, such as easy maintenance.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an automatic cleaning ventilation fan including a first cleaning mechanism according to the present invention.

FIG. 2 is a view taken in the direction of arrow A in FIG. 1;

FIG. 3 is a perspective view showing a blow nozzle to which a brush is attached.

FIG. 4 is a cross-sectional view showing a mounted state of the brush.

FIG. 5 is a cross-sectional view showing another embodiment of the mounted state of the brush.

FIG. 6 is a cross-sectional view showing another embodiment of the mounted state of the brush.

FIG. 7 is a sectional view showing an injection port in a hollow single tube.

FIG. 8 is a sectional view showing another embodiment of the injection port in the hollow single tube.

FIG. 9 is a cross-sectional view showing another embodiment of the injection port in the hollow single tube.

FIG. 10 is a cross-sectional view of an automatic cleaning ventilation fan including a second cleaning mechanism.

11 is a view as viewed in the direction of the arrow B in FIG. 10;

FIG. 12 is a cross-sectional view of an automatic cleaning ventilation fan including a third cleaning mechanism.

FIG. 13 is a view as viewed in the direction of arrow C in FIG. 13;

FIG. 14 is a sectional view of an automatic cleaning ventilation fan provided with a fourth cleaning mechanism.

FIG. 15 is a view as viewed in the direction of arrow D in FIG. 15;

FIG. 16 is a cross-sectional view of an automatic cleaning ventilation fan including a fifth cleaning mechanism.

FIG. 17 is a view as viewed in the direction indicated by an arrow E in FIG. 16;

FIG. 18 is a cross-sectional view of an automatic cleaning ventilation fan including a fifth cleaning mechanism.

FIG. 19 is a view as viewed from the direction of the arrow F in FIG. 18;

[Explanation of symbols]

 3 Ventilation blade 4 Motor 5 Filter member 10 Blow nozzle 14 Brush

Claims (2)

(57) [Claims] 1. A motor for rotating an intake ventilation blade.
Ventilation filter with a filter member
Contact the front or back surface of the filter
The brush to be touched is provided movably, and the compressed air is blown.
The blow nozzle that blows out to the filter member side is
Brush and blow nozzle provided movably for material
When controlling the movement of the ventilation blades,
Brush movement of compressed air injection direction from blow nozzle
Injected to the brush tip side in the rear direction of movement at the time of
An automatic cleaning and ventilation fan characterized by being oriented in various ways. 2. A ventilation fan provided with a filter member and a motor for rotating a ventilation blade for air intake, wherein the filter member is rotatable and a brush which comes into contact with the front surface or the back surface of the filter member. A blow nozzle for ejecting compressed air to the filter member side is fixed and fixed, and when controlling the rotation of the filter member, the ventilation blade is controlled to rotate in the reverse direction, and the injection direction of the compressed air from the blow nozzle is set to the filter member. When rotating
An automatic cleaning and ventilating fan characterized in that it is directed so as to be sprayed toward the front end of the brush in the rotation direction .