JP2010243030A - Air supply ventilation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air supply ventilation device capable of preventing the shortage of an air quantity by preventing the clogging of a filter even if outdoor air including a large amount of dust is supplied, and reducing the frequency of maintenance for removing the dust. <P>SOLUTION: Since the air filter 9 is tilted so that the upper part is located at the outdoor side and the lower part at the indoor side, a collecting area of the dust is expanded to improve a dust collecting capacity. Since the dust is not accumulated, the shortage of the air quantity is prevented and the maintenance frequency of the air filter 9 can be reduced. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a ventilator for supplying air that ventilates by supplying outdoor air to the indoor side.

  Conventionally, there is a ventilator disclosed in Patent Document 1 as an example of a ventilator for supplying air.

  Hereinafter, the ventilator will be described with reference to FIG.

  As shown in the figure, the ventilator is attached to a wind tunnel 104 that is attached by inserting a blower 101 for supplying outdoor air to the indoor side into a pipe 103 that is embedded in a wall 102 of a building and communicates between the outside and the room. A main body 105 provided, a decorative panel 108 which is mounted on the indoor side of the main body 105, covers the indoor-side opening 106 of the main body 105, and has a blow-out port 107 for blowing the sucked outdoor air into the room; It is composed of a cylindrical air filter 109 that is disposed on the inside and is detachable so as to surround the outer shell of the blower 101, and a cap structure 110 that can detachably cover the outer side of the decorative panel 108 except for the air outlet 107. ing.

  In such a ventilation device for supplying air, outdoor air passes from the outdoor side to the indoor side opening 106 by the blower 101, passes through the air filter 109 disposed inside the decorative panel 108, and then blows out. The air is supplied indoors from 107. Depending on the environment where the ventilator is installed, dust or the like is included in the outdoor air, but it is removed by the air filter 109 provided inside, and clean air is supplied to the indoor side.

JP 2003-28474 A

  In such a conventional ventilator, if the air quality outside the room in the environment where the ventilator is installed is poor and a large amount of dust or the like is contained in the air, the air filter 109 immediately becomes clogged. However, there is a problem that the air volume of the ventilator becomes insufficient, and it is necessary to frequently perform maintenance for dust removal.

  The present invention solves such a conventional problem, and even when supplying air with a lot of dust, the air filter is less likely to be clogged, making it difficult for the air volume to become insufficient, and dust removal. The purpose is to reduce the maintenance frequency.

  In order to achieve the above object, the air supply and ventilating apparatus of the present invention has an outer side so as to be along the indoor side wall surface of the wall portion at the indoor side end portion of the cylindrical portion inserted into the ventilation port provided in the wall portion. A body frame having a flange portion extending to the flange portion, a decorative panel detachably provided on the flange portion, a fan motor including a motor provided in the cylinder portion and having a fan fixed thereto, and an air filter provided in the cylinder portion The air filter is arranged with the upper portion inclined toward the outdoor side and the lower portion inclined toward the indoor side.

  Another means is that an air filter is disposed on the outdoor side of the fan motor.

  Another means is that the air filter has an elliptical shape.

  Another means is that the air filter can be reversed in the front-rear direction.

  Another means is that the fan motor can be reversely rotated for a certain time.

  Another means is that the vibration generating means is connected to the air filter.

  Another means is that a dust collection case is disposed below the air filter.

  Further, the other means is configured such that when the dust accumulated in the dust collection case reaches a predetermined amount, the display means provided on the decorative panel is turned on.

  Further, the other means is configured such that the display means provided on the decorative panel is turned on when a predetermined time has elapsed after the dust in the dust collection case is discarded.

  Further, the other means includes a fan motor as a DC motor, and includes a control means for controlling the DC motor, and the control means controls the DC motor according to changes in the voltage and rotation speed of the DC motor during operation. The rotational speed is adjusted by controlling the voltage applied to the DC motor so as to obtain the above.

  According to the present invention, since the air filter is disposed with the upper portion inclined to the outdoor side and the lower portion inclined to the indoor side, the dust collection area is expanded and the dust does not accumulate. It is possible to provide a ventilator that has an effect of improving the collection ability and reducing the number of maintenance of the air filter.

  In addition, since the air filter is placed outside the fan motor, the fan motor is not exposed to dust, making it difficult for dust to enter the motor, reducing the cause of failure and extending the life of the motor. Can be achieved.

  In addition, since the air filter has an elliptical shape, the gap between the air filter and the cylindrical portion is narrowed and the area of the air filter is increased, so that dust entering the room is reduced and dust is collected. The amount can be increased and the number of maintenance can be further reduced.

  Further, by enabling the air filter to be reversed in the front-rear direction, dust attached to the surface of the air filter is likely to fall, the air filter is less likely to be clogged, and the number of maintenance can be further reduced.

  In addition, by enabling the fan motor to rotate backward for a certain period of time, dust attached to the surface of the air filter is blown away by the air flowing in the opposite direction and falls, making it difficult for the air filter to become clogged, and the number of maintenance operations Can be further reduced.

  Further, by connecting the vibration generating means to the air filter, the dust adhering to the surface of the air filter can be easily dropped by the vibration, the air filter is not easily clogged, and the number of maintenance can be further reduced.

  Also, by arranging the dust collection case below the air filter, the collected dust can be discarded simply by taking out the dust collection case, and cleaning becomes easy.

  In addition, when the amount of dust collected in the dust collection case reaches a predetermined amount, the display means provided on the decorative panel is turned on, so that the user notices that the dust is discarded and blows the accumulated dust into the room. Dust can be discarded before trapping or obstructing ventilation.

  In addition, the display means provided on the decorative panel lights up after a predetermined time has elapsed after the dust in the dust collection case has been discarded, so that the user notices that the dust has been discarded and the accumulated dust has entered the room. Dust can be discarded before being blown in or obstructing ventilation.

  Also, the fan motor is a DC motor, and the voltage applied to the DC motor is controlled by a control means for controlling the DC motor so as to obtain a predetermined air volume according to the change in the rotational speed of the DC motor during operation. By adjusting the rotational speed, even if the amount of dust attached to the air filter gradually increases, the air volume can be kept from decreasing by controlling the voltage and rotational speed of the DC motor.

Sectional drawing which shows the air supply ventilation apparatus of Embodiment 1 of this invention Sectional drawing which shows the air supply ventilation apparatus of Embodiment 2 of this invention Sectional drawing which shows the air supply ventilation apparatus of Embodiment 3 of this invention The perspective view of the cylinder part which provided the filter case of the supply air ventilation device The exploded perspective view which shows the structure which concerns on the filter case of the same air supply ventilation apparatus The perspective view at the time of the makeup panel removal of the supply air ventilator Perspective view of the air supply ventilator with a decorative panel Sectional drawing which shows the air supply ventilation apparatus of Embodiment 4 of this invention Sectional view showing a conventional ventilation device for air supply

  In the air supply and ventilation device according to claim 1 of the present invention, the air filter is disposed with the upper portion inclined to the outdoor side and the lower portion inclined to the indoor side, and the air filter has the upper portion on the outdoor side and the lower portion on the indoor side. Since it is inclined inward, the dust collection area by the air filter is expanded, and the dust attached to the surface of the air filter falls downward and is less likely to be clogged.

  Further, in the air supply and ventilation device according to claim 2, the air filter is disposed on the outdoor side of the fan motor, and the air filter is disposed on the upstream side of the fan motor. No longer exposed.

  In addition, the air supply and ventilation device according to claim 3 is an air filter having an elliptical shape, and by making the air filter to be inclined and having an elliptical shape, a gap between the cylindrical portion is narrowed, The passage of dust through the air filter is reduced, and the area of the air filter is increased.

  According to a fourth aspect of the present invention, there is provided an air supply and ventilation device in which the air filter is reversible in the front-rear direction, and when the air filter is reversed, the dust attached to the surface of the air filter is absorbed by the air supply airflow. It is easy to fall off.

  According to a fifth aspect of the present invention, the air supply and ventilator is configured such that the fan motor can be rotated in a reverse direction for a certain period of time. When the fan motor rotates in the reverse direction, wind flows in the reverse direction, and dust adhered to the air filter surface The air is easily separated from the air filter by the reverse wind.

  According to the sixth aspect of the present invention, the air generating and ventilating apparatus is configured such that the vibration generating means is connected to the air filter, and the dust adhering to the surface of the air filter is likely to fall downward due to the vibration.

  According to a seventh aspect of the present invention, there is provided an air supply and ventilation device in which a dust collection case is disposed below the air filter, and the dust collected by the air filter falls downward and is detachable. Enter the dust collection case.

  Further, the air supply and ventilation device according to claim 8 is configured such that when the dust accumulated in the dust collection case reaches a predetermined amount, the display means provided on the decorative panel is lit, and the dust is collected. The user is informed that the amount to be discarded has accumulated in the collection case.

  Further, the air supply and ventilation device according to claim 9 is configured such that the display means provided on the decorative panel is turned on after a predetermined time has elapsed after the dust in the dust collection case is discarded, and the dust is discarded. Then, when a predetermined time set in advance as a time for dust to collect up to the disposal amount has elapsed since the dust collection case became empty, the user is notified that the dust disposal time has come.

  The air supply and ventilation device according to claim 10 includes a control unit for controlling the DC motor, wherein the fan motor is a DC motor, and the control unit allows changes in the voltage and the rotational speed of the DC motor during operation. Accordingly, the rotational speed is adjusted by controlling the voltage applied to the DC motor so as to obtain a predetermined air volume. Even if the rotational speed of the DC motor changes due to dust adhering to the air filter, The rotational speed is adjusted according to the change, and a predetermined air volume is obtained.

  Embodiments of the present invention will be described below with reference to FIGS.

(Embodiment 1)
As shown in FIG. 1, the air supply and ventilation device according to the first embodiment of the present invention is a cylindrical portion that is embedded in a wall portion 1 and is inserted into a pipe 4 that communicates the indoor 2 and the outdoor 3 to form a ventilation opening. 5 and a body frame 8 having a flange portion 14 extending outwardly along the inner wall surface 7 at an indoor side end portion of the cylindrical portion 5, a fan motor 6 provided inside the cylindrical portion 5, The air filter 9 is detachably mounted in the cylindrical portion 5 and the decorative panel 10 is detachably fitted to the flange portion 14 of the main body frame 8.

  The main body frame 8 is formed such that the outer peripheral portion 11 of the flange portion 14 that abuts along the inner wall surface 7 has a substantially rectangular shape, and the air flow passage portion 12 that communicates with the cylindrical portion 5 at the center portion. ing. Further, a filter holding rib 13 for holding the air filter 9 is located inside the cylindrical portion 5 at a position closer to the room 2 than the fan motor 6, with the upper side being the outdoor 3 side and the lower side being the indoor 2 side. The upper filter retainer 16 and the lower filter retainer 17 are formed by taking a distance corresponding to the thickness of the air filter 9 in the indoor direction with respect to the filter retaining rib 13. The upper filter holder 16 and the lower filter holder 17 constitute a filter fixing portion 18. On the other hand, the air filter 9 has a substantially elliptical shape so as to be provided around the entire circumference of the cylindrical portion 5.

  By adopting such a configuration, the upper part of the air filter 9 held by the filter fixing part 18 is inclined to the outdoor 3 side and the lower part is inclined to the indoor 2 side, and the shape of the air filter 9 is substantially elliptical. Therefore, even if the dust collection area is larger than that of the air filter mounted perpendicularly to the cylinder portion 5 and the dust in the air supplied from the outdoor 3 is attached to the surface of the air filter 9, Becomes easy to fall downward, and clogging of the air filter 9 becomes difficult.

  Moreover, since the shape of the air filter 9 is substantially elliptical, the gap with the cylindrical portion 5 is reduced, the passage of dust through the air filter 9 is reduced, and the amount of collected dust is further increased.

  Further, since the air filter 9 is held in the vicinity of the indoor side end on the indoor 2 side from the fan motor 6 in the cylindrical portion 5, when cleaning the air filter 9 to which dust has adhered, the decorative panel 10 is removed. The room 2 can be easily cleaned.

  As described above, according to the air supply and ventilation device of the first embodiment of the present invention, the substantially elliptical air filter 9 is disposed to be inclined, whereby the amount of collected dust increases and the air is collected. Since dust easily falls downward, it is difficult for dust to accumulate, the collection capacity of the air filter 9 is improved, the number of maintenance of the air filter 9 can be reduced, and the maintenance is easy. It will be something.

(Embodiment 2)
As shown in FIG. 2, the air supply ventilator according to the second embodiment of the present invention is different from the air supply ventilator according to the first embodiment in that the filter holding rib 13A, the upper filter press 16A, and the lower filter press 17A. The filter fixing | fixed part 18A which consists of this differs in the point which provided the outdoor 3 side from the fan motor 6A.

  In other words, the air supplied from the outdoor 3 passes through the air filter 9 first.

  With such a configuration, the air filter 9 is disposed on the outdoor 3 side of the fan motor 6A, that is, on the upstream side of the fan motor 6A, and when supplying air, the fan motor 6A detects dust that enters from the outdoor side. It becomes difficult to be exposed, the cause of failure of the fan motor 6A is reduced, and the life of the motor can be extended.

  Further, in the above configuration, when the air supply operation for a certain period of time has elapsed, the fan motor 6A is reversely rotated for a predetermined time, so that dust adhering to the surface of the air filter 9 is blown from the surface of the air filter 9 by the reverse wind. The number of maintenance can be further reduced by making it difficult to blow off and clog.

(Embodiment 3)
As shown in FIG. 3, the air supply ventilator according to the third embodiment of the present invention is different from the air supply ventilator according to the second embodiment in that a filter case 19 (see FIG. 4 and FIG. 5), and a dust collection case 20 (see also FIG. 6) is provided below the cylindrical portion 5A.

  The dust collection case 20 has a substantially rectangular shape, and is housed in a dust collection case storage portion 21 formed along the bottom of the cylindrical portion 5A so as to be freely inserted and removed from the room 2 side.

  In addition, the filter case 19 is provided in the cylinder portion 5A so as to be inclined so that the upper part is on the outdoor 3 side and the lower part is on the indoor 2 side, and has a substantially elliptical cylindrical shape. A filter holding portion 22 is formed at the lower portion, and a filter holding rib 23 is formed at the rear end portion.

  As shown in FIGS. 4 and 5, a shaft 24 is formed on both the left and right sides of the filter case 19 so as to be fitted into the cylindrical portion 5A, and a shaft hole 25 into which one of the shafts 24 is engaged has a cylindrical portion. It is formed on one side of 5A. In addition, a motor housing portion 27 that houses a motor 26 that rotates the filter case 19 is formed on the other side portion of the cylindrical portion 5A. In the motor housing portion 27, the motor 26 and the shaft 24 connect the connecting component 28. Are connected through.

  The normal posture of the filter case 19 is arranged such that the upper part is inclined to the outdoor 3 side and the lower part is inclined to the indoor 2 side.

  As shown in FIG. 6, a rib 29 is formed in the dust collection case 20, and is embedded in the dust collection case storage portion 21 when stored in the dust collection case storage portion 21 to the end. It comes into contact with the limit switch 30. Furthermore, as shown in FIG. 4, the hole 31 is formed only in the region where the filter case 19 below the cylinder portion 5A is disposed. And as shown in FIG. 7, LED32 is embed | buried under the decorative panel 10A and it is comprised so that the opening / closing state of the limit switch 30 may be displayed.

  With the above configuration, the filter case 19, that is, the air filter 9 </ b> A is disposed at an inclination, so that the dust collection area is expanded and a part of the collected dust falls downward, so that the dust accumulates. However, the collection capability of the air filter 9A is improved, and the number of maintenance of the air filter 9A can be reduced.

  Further, after a predetermined time has elapsed, the motor 26 automatically rotates the filter case 19 in the direction of the arrow A in FIG. The front-rear direction is reversed so that the lower part is located on the opposite side. Then, since the air filter 9A is reversed in the front-rear direction, the dust adhering to the surface of the air filter 9A is easily blown away by the air supply air and falls. When the dust collected by the air filter 9A falls downward, the dust is collected in the dust collecting case 20 through the hole 31 opened in the cylindrical portion 5A. The dust collecting case 20 can be taken out by removing the decorative panel 10A fitted in the flange portion 14A of the main body frame 8A and pulling it out from the dust collecting case storage portion 21 to the room 2 side. Can be easily disposed of.

  Then, when the dust is discarded and the dust collection case 20 is stored in the dust collection case storage portion 21, it is not completely contained and the rib 29 of the dust collection case 20 is not in contact with the limit switch 30. Then, the LED 32 of the decorative panel 10A blinks or the color changes to notify the user of the abnormality.

  In addition, when a predetermined amount of dust is detected as an amount to be discarded with respect to the dust collection case 20 by a detection means (not shown), or when dust is discarded from the dust collection case 20 and cleaned, The amount of time until the amount of waste is set in advance, and when this set time elapses, in each case, the LED 32 of the decorative panel 10A indicates that the amount of dust has become the amount of waste, or that the time of dust disposal has come. By notifying by means such as flashing, it becomes possible for the user to know that the proper disposal time has come before dust accumulates and blows into the room or obstructs ventilation.

  Further, in the above configuration, even when a vibration oscillator (not shown) is attached instead of the motor 26 that reverses the air filter 9A in the front-rear direction, the air filter 9A adheres to the surface of the air filter 9A due to vibration from the vibration oscillator. The dust thus easily falls downward and is less likely to be clogged, so that the maintenance frequency of the air filter 9A can be reduced.

(Embodiment 4)
As shown in FIG. 8, the air supply and ventilation device according to the fourth embodiment of the present invention has a DC motor 33 as a motor that constitutes a fan motor, compared to the air supply and ventilation device according to the second embodiment, and a main body frame 8B. A control board 34 for controlling the operation of the DC motor 33 is attached to the back side of the flange portion 14B. In the control board 34, a table of the applied voltage to the DC motor 33 and the number of rotations for the set air supply amount is stored in advance in a microcomputer or the like.

  With the above configuration, when dust adheres to the air filter 9 and the rotational speed of the DC motor 33 changes, the relationship between the applied voltage and the rotational speed of the DC motor 33 stored in advance corresponds to the change. Further, the DC motor 33 is controlled from the control board 34.

  As described above, according to the fourth embodiment of the present invention, although dust hardly accumulates on the air filter 9 basically by the configuration related to the air filter 9, the amount of dust attached to the air filter 9 increases little by little. Then, the air volume can be controlled so that the air volume does not always decrease, and the set supply air volume can be maintained.

  The air supply and ventilation device according to the present invention increases the dust collection area in the air filter and prevents dust from accumulating, so that the air filter collection efficiency is increased and the number of maintenance times of the air filter is reduced. It is useful as a ventilation device for supplying air.

DESCRIPTION OF SYMBOLS 1 Wall part 2 Room 3 Outdoor 5 Cylinder part 6 Fan motor 6A Fan motor 7 Inner wall surface 8 Main body frame 9 Air filter 9A Air filter 10A Makeup panel 14 Flange part 20 Dust collection case 32 LED
33 DC motor 34 Control board

Claims (10)

A body frame having a flange portion extending outwardly along the indoor side wall surface of the wall portion at the indoor side end portion of the cylindrical portion inserted into the ventilation opening provided in the wall portion, and attached to and detached from the flange portion A decorative panel provided freely, a fan motor including a motor provided in the cylindrical portion and having a fan fixed thereto, and an air filter provided in the cylindrical portion, wherein the air filter has an upper portion on an outdoor side and a lower portion on a chamber. An air supply ventilator characterized by being inclined inward. The air supply and ventilation device according to claim 1, wherein the air filter is disposed on the outdoor side of the fan motor. The air supply and ventilation device according to claim 1 or 2, wherein the air filter has an elliptical shape. The air supply and ventilation device according to claim 1 or 2, wherein the air filter can be reversed in the front-rear direction. The air supply / ventilation device according to any one of claims 1 to 3, wherein the fan motor is capable of reverse rotation for a predetermined time. The air supply and ventilation device according to any one of claims 1 to 3, wherein a vibration generating means is connected to the air filter. The air supply and ventilation device according to any one of claims 1 to 6, wherein a dust collection case is disposed below the air filter. 8. The air supply and ventilation device according to claim 7, wherein when the amount of dust collected in the dust collection case reaches a predetermined amount, the display means provided on the decorative panel is turned on. The air supply and ventilation device according to claim 7, wherein the display means provided on the decorative panel is turned on when a predetermined time has elapsed after the dust in the dust collection case is discarded. The fan motor is a DC motor, and control means for controlling the DC motor is provided, and the control means applies to the DC motor so as to obtain a predetermined air volume according to a change in the rotational speed of the DC motor during operation. The supply-air ventilation apparatus in any one of Claims 1-9 which controls the voltage to perform and adjusts rotation speed.

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