JP4760480B2 - Air supply type ventilator - Google Patents

Description

  The present invention relates to an air supply type ventilation apparatus provided with a filter capable of removing dust contained in outside air supplied indoors.

  Conventionally, an air supply type ventilator provided with a filter is known as an example of this type of air supply type ventilator (see, for example, Patent Document 1).

  Hereinafter, the air supply type ventilator will be described with reference to FIGS. 6 and 7.

  As shown in the figure, a rectangular frame portion 104 that protrudes toward the indoor side of the cylindrical portion 103 that is mounted on the ventilation port 102 provided in the wall portion 101 is provided, and the fan 105 is positioned in the cylindrical portion 103. A main body 108 incorporating a fan motor 107 with a motor 106 attached to a frame portion 104 is provided, and a frame shape is attached to the outer periphery of the frame portion 104 of the main body 108. The front surface is closed by a panel 109, and the left and right side surfaces 110 or the upper surface are closed. A grill 113 provided with a vent 112 is provided at 111, a filter 115 having a filter member 114 formed in a zigzag shape is formed in an annular shape, and is disposed in the grill 113 in a substantially square shape.

  Moreover, the air supply type ventilator as another example is also known (for example, refer patent document 2).

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

As shown in the figure, the ventilation device 116 includes a connecting arm 118 having an end attached to the panel 117, a filter frame 119 attached to the opposite side of the connecting arm 118 attached to the panel 117, and a filter frame 119. It has a pleated filter 120 housed therein.
JP 2004-293864 A ([0021] to [0022] FIGS. 1 and 4) JP 2003-279093 A ([0029] FIG. 6)

  In such a conventional air supply type ventilator as described above, the filter 115 is formed in an annular shape in order to make the protrusion to the indoor side thinner and to reduce the dimension in the wall portion 101. There is a problem that the filter 115 is easily deformed, and it is difficult to install the filter 115 so that there is no air leakage at the time of re-installation. ing.

  Further, in the latter air supply type ventilation device, in order to reduce the protrusion to the indoor side, it is necessary to reduce the thickness of the pleated filter 120, but in that case, the pressure loss of the filter 120 increases, There is a problem that only the supply type ventilator with low air volume can be obtained while the noise becomes high, and it is required to obtain a ventilator with low noise and large air volume.

  The present invention solves such conventional problems, and an object of the present invention is to provide an air supply type ventilator having good maintainability, small filter pressure loss, and good ventilation performance.

In order to achieve the above object, an air supply type ventilator according to the present invention has a cylindrical portion attached to a wind tunnel pipe embedded in a wall portion so as to communicate between the outside and the room, and an indoor side of the cylindrical portion. A main body frame provided with a substantially rectangular flange portion projecting radially on the outer periphery, an electric motor connected to the cylindrical portion of the main body frame via a motor support portion, and supported on the outdoor side of the electric motor A fan, a rectangular frame-shaped filter storage portion protruding inward of the main body frame, a plate filter stored in the filter storage portion, and a front surface provided on the main body frame so as to cover the plate filter A panel, and one of the motor support portions is provided in a substantially vertical downward direction, and receives rainwater or the like that has entered from the outside of the tubular portion at a joint portion with the tubular portion, and is the same as the motor support portion. Water on the part The fit wall provided, the provided position of the inner part of the filter housing portion to the cylindrical portion side of the flange portion surface, in which the outdoor side surface of the plate-shaped filter is disposed on the wall side nearer than the flange surface is there.

  By this means, it is possible to obtain an air supply type ventilator that has good maintainability and is excellent in design with a small amount of protrusion on the indoor side, and has a small filter pressure loss and good ventilation performance when the plate filter is pleated.

  Another means is that the height in the axial direction of the fan is formed in the range of 30 to 45% with respect to the outer diameter of the fan.

  By this means, an air supply type ventilation device capable of dealing with a thin wall is obtained.

  Another means is that the motor support is formed substantially parallel to the inflow angle of the blown airflow.

  By this means, it is possible to obtain a supply type ventilator that can cope with a filter having a large pressure loss and has a small indoor-side protruding amount.

  Another means is to provide an orifice on the outdoor side of the cylindrical portion.

  By this means, it is possible to obtain a supply type ventilator that can cope with a filter having a large pressure loss and has a small indoor-side protruding amount.

  In another means, the cylindrical portion is formed to a length that covers the fan.

  By this means, it is possible to prevent the fan from being damaged during transportation and construction.

  Another means is that a rectangular gap is provided between the cylindrical portion and the plate filter.

  By this means, an air supply type ventilator with small filter pressure loss and good ventilation performance can be obtained.

According to the present invention, the air path resistance is minimized and the air blowing performance can be kept good, but the maintainability is good, the design with a small amount of indoor protrusion is excellent, the filter pressure loss is small, and the air blowing performance is good. An effective air supply type ventilator can be provided.

  In addition, it is possible to provide an air supply type ventilation device that is effective in adapting to thin walls.

  In addition, it is possible to provide an air supply type ventilator that can deal with a filter having a large pressure loss and has an effect of reducing the amount of indoor-side protrusion.

  In addition, it is possible to provide an air supply type ventilation device that can prevent the fan from being damaged during transportation and construction.

According to a first aspect of the present invention, there is provided an air supply type ventilator having a cylindrical portion attached to a wind tunnel pipe embedded in a wall portion so as to communicate with the outside and the room, and an outer periphery on the indoor side of the cylindrical portion. A main body frame provided with a substantially square flange portion projecting in the radial direction, an electric motor connected to the cylindrical portion of the main body frame via a motor support portion, and a fan pivotally supported on the outdoor side of the electric motor A rectangular frame-shaped filter storage portion protruding to the indoor side of the main body frame, a plate filter stored in the filter storage portion, and a front panel provided on the main body frame so as to cover the plate filter; One of the motor support portions is provided in a substantially vertically downward direction, receives rainwater or the like that has entered from the outside of the tubular portion at the joint portion with the tubular portion, and is disposed at the same site as the motor support portion. Water barrier Only, the position of the inner part of the filter housing portion is provided on the cylindrical portion side of the flange portion surface, which the outdoor side surface of the plate-shaped filter is disposed on the wall side nearer than the flange surface, the cylinder Rainwater or the like that has entered from the outdoor side of the shaped part is received by the water blocking wall to prevent the entry of rainwater into the room, and one of the motor support parts is provided vertically downward to prevent water from entering the joint part with the cylindrical part. Because the stop wall is provided, the motor support and the water stop wall are provided at the same location, and the air path resistance is minimized compared to the case where the motor support and the water stop wall are provided at different positions. Provided with the inner part of the filter storage part positioned closer to the cylindrical part than the surface of the flange part attached to the indoor side wall surface of the wall part while maintaining good ventilation performance By filling -The plate-like filter stored in the storage section is provided closer to the wall on the indoor side than the surface of the flange, and the amount of protrusion of the filter storage section to the indoor side is small by the dimensions provided closer to the wall. As a whole, an air supply type ventilation device with a small amount of protrusion to the interior and excellent design can be obtained, and it is possible to increase the thickness of the plate filter stored in the filter storage part, and the plate filter In the case of a pleated shape, the filter pressure loss is small, and the air blowing performance is improved by a large air volume with low noise.

  According to a second aspect of the present invention, the height of the fan in the axial direction is formed in a range of 30 to 45% with respect to the outer diameter of the fan. By reducing the length of the cylindrical portion, the length of the cylindrical portion can be reduced, and there is an effect of having workability capable of dealing with a thin wall.

  According to a third aspect of the present invention, the air supply type ventilator is configured such that the motor support portion is formed substantially parallel to the inflow angle of the blast airflow, and the blast airflow generated by the fan flows substantially parallel to the motor support portion. It is possible to increase the static pressure, to cope with a plate filter with high pressure loss, and to reduce the air path formed between the front panel and the projecting to the indoor side The amount can be reduced.

  Further, the air supply type ventilator according to claim 4 is provided with an orifice on the outside of the cylindrical portion, and the static pressure can be increased by the orifice provided in the air supply port portion of the fan. Thus, it is possible to cope with a plate-like filter with high pressure loss, thereby having the effect of reducing the amount of protrusion to the indoor side.

  Further, the air supply type ventilator according to claim 5 is configured such that the cylindrical portion is formed to have a length that covers the fan, and the fan is covered and covered by the cylindrical portion, thereby transporting and constructing the ventilation device. At the time of handling, there is an effect that an object or the like hits the fan and the fan is prevented from being damaged.

The air supply type ventilator according to claim 6 is provided with a rectangular gap between the cylindrical portion and the plate filter, and the outside air supplied from the circular cylindrical portion is plate-shaped. It flows into the square gap formed on the upstream side of the filter, flows evenly over the entire square surface of the gap, and is supplied into the plate filter from the entire upstream side of the plate filter. Since the corners of the plate-like filter can be used without surplus, the pressure loss of the plate-like filter is small, air blowing performance is improved, and the dust collecting ability of the plate-like filter is improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
As shown in FIG. 1, a cylindrical portion 5 attached to a wind tunnel pipe 4 embedded in a wall portion 3 so as to communicate the outdoor 1 and the indoor 2, and an outer periphery of the cylindrical portion 5 on the indoor 2 side. A main body frame 8 provided with a substantially rectangular flange portion 6 projecting in the radial direction, and a rising portion 7 provided on the back side of the outer periphery of the flange portion 6, and provided in the cylindrical portion 5 of the main body frame 8. An electric motor 9, a fan 10 that is pivotally supported on the outdoor side of the electric motor 9, a rectangular frame-shaped filter storage portion 11 that protrudes to the indoor side of the main body frame 8, and a plate-like filter 12 that is stored in the filter storage portion 11 A front panel 15 that covers the front surface of the plate-like filter 12 and is moved forward through a link 14 to a panel base portion 13 provided on the main body frame 8. Position 16 is flange 6 Provided on the cylindrical part 5 side from the surface, the plate filter 12 is disposed closer to the wall part 3 side, and the height dimension (A) in the axial direction of the fan 10 with respect to the outer diameter dimension (B) of the fan 10 30 to 45% of the range.

  In the above configuration, during operation, the front panel 15 is moved forward and upward by the link 14 to form the air passage 17 and the fan 10 is driven by the electric motor 9 so that the air in the outdoor 1 passes through the wind tunnel pipe 4. While being supplied to the fan 10 and passing through the cylindrical part 5 and passing through the plate filter 12, dust contained in the outside air is adsorbed by the plate filter 12 and passes through the air path 17 between the front panel 15. As a result, the purified outside air is supplied to the room 2.

  And the position 16 of the back part of the filter storage part 11 was provided in the cylindrical part 5 side from the surface of the flange part 6, and the plate-shaped filter 12 was arrange | positioned near the wall part 3 side, thereby storing in the filter storage part 11 The plate-like filter 12 is provided closer to the wall portion 3 on the indoor 2 side than the surface of the flange portion 6, and the amount of protrusion of the filter storage portion 11 toward the indoor 2 side by the dimension provided closer to the wall portion 3 side. As a whole, an air supply type ventilation device with a small amount of protrusion toward the indoor 2 side and an excellent design can be obtained, and the thickness of the plate filter 12 stored in the filter storage portion 11 can be increased. When the plate-like filter 12 is pleated, the filter pressure loss is small, and the air blowing performance is good with a large air volume with low noise.

  Further, the height dimension (A) in the axial direction of the fan 10 is formed in the range of 30 to 45% with respect to the outer diameter dimension (B) of the fan 10, so that the height dimension (in the axial direction of the fan 10 ( By making A) small, the length of the cylindrical part 5 can also be made small and it has the workability which can respond to a thin wall.

(Embodiment 2)
As shown in FIG. 2, a motor support 18 that connects the cylindrical portion 5A and the motor 9A is formed to be substantially parallel to the inflow angle of the blown airflow.

  In the above configuration, the air flow generated by the fan 10 flows substantially in parallel with the motor support 18, so that the static pressure can be increased and the plate filter 12 with high pressure loss can be handled. )), The amount of protrusion to the indoor side can be reduced.

(Embodiment 3)
As shown in FIG. 3, an orifice 19 is provided on the outdoor side of the cylindrical portion 5B.

  In the above configuration, the static pressure can be increased by the orifice 19 provided in the air supply port portion of the fan 10, and the thin plate filter 12 with high pressure loss can be dealt with. The amount of protrusion can be reduced.

(Embodiment 4)
As shown in FIGS. 4 and 5, the cylindrical portion 5C is formed in a length that hides the fan 10A, and one of the motor support portions 18A that connects the motor 9B to the cylindrical portion 5C is set substantially vertically downward. The water retaining wall 21 is provided at the joint 20 with the cylindrical portion 5C, and a rectangular gap 22 is provided between the cylindrical portion 5C and the plate filter 12A.

  In the above configuration, since the cylindrical portion 5C is formed to have a length that covers the fan 10A, the fan 10A is covered by the cylindrical portion 5C. It is possible to prevent the fan 10 </ b> A from being damaged by the other object hitting 10 </ b> A.

  In addition, since one of the motor support portions 18A that connects the cylindrical portion 5C and the electric motor 9B is provided substantially vertically downward, and the water blocking wall 21 is provided at the joint portion 20 with the cylindrical portion 5C, the cylindrical portion 5C. Rainwater or the like that has entered from the outdoor 1 side of the water is received by the water blocking wall 21 to prevent rain water from entering the room 2, and the motor support 18A and the water blocking wall 21 are provided in the same part, and the motor support Compared with the case where 18A and the water stop wall 21 are provided at different positions, the air path resistance can be minimized, and the air blowing performance can be kept good.

  Further, since the square gap 22 is provided between the cylindrical portion 5C and the plate filter 12A, the outside air supplied from the circular cylindrical portion 5C is formed on the upstream side of the plate filter 12A. It flows into the gap 22 of the shape, flows evenly over the entire rectangular surface of the gap 22, and is supplied into the plate filter 12A from the entire upstream surface of the plate filter 12A. The corners of the plate filter 12A Therefore, the pressure loss of the plate filter 12A is small and the air blowing performance is improved, and the dust collecting ability of the plate filter 12A can be improved.

  The air supply type ventilator according to the present invention has good maintainability, is excellent in design with a small amount of indoor side protrusion, has a small filter pressure loss, and has a good effect of ventilation performance, and can be applied to the field of exhaust type ventilators. .

Side surface sectional drawing of the supply type | formula ventilation apparatus of Embodiment 1 of this invention Side surface sectional drawing of the air supply type ventilator of Embodiment 2 of this invention Side surface sectional drawing of the supply type | formula ventilation apparatus of Embodiment 3 of this invention Side surface sectional drawing of the supply type | formula ventilation apparatus of Embodiment 4 of this invention Rear view of the air supply type ventilator Sectional view of a conventional air supply type ventilator Rear view of the grill when the filter of the air supply type ventilator is installed Side sectional view of an air supply type ventilator of another example

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outdoor 2 Indoor 3 Wall part 4 Wind tunnel pipe 5 Cylindrical part 5A Cylindrical part 5B Cylindrical part 5C Cylindrical part 6 Flange part 8 Main body frame 9 Electric motor 9A Electric motor 9B Electric motor 10 Fan 10A Fan 11 Filter storage part 12 Plate filter 12A Plate-shaped filter 15 Front panel 16 Back position 18 Motor support 18A Motor support 19 Orifice 20 Joint 21 Water retaining wall 22 Gap

Claims (6)

A cylindrical portion mounted on a wind tunnel pipe embedded in the wall so as to communicate between the outdoor and indoors, and a substantially rectangular flange portion projecting radially on the outer periphery of the cylindrical portion on the indoor side is provided. A main body frame, an electric motor connected to the cylindrical portion of the main body frame via a motor support portion, a fan pivotally supported on the outdoor side of the electric motor, and a rectangular frame shape protruding to the indoor side of the main body frame and a filter housing portion, and a plate-shaped filter housed in the filter housing portion, and a front panel provided on the body frame in a shape to cover the plate-like filter, a substantially vertically downward one of the motor supporting portion In the direction, receiving rainwater or the like that has entered from the outside of the tubular portion at the joint portion with the tubular portion, providing a water retaining wall at the same site as the motor support portion, position Wherein provided from the flange portion surface to the cylindrical portion side, the air supply ventilation device, characterized in that the outdoor side surface of the plate-shaped filter is disposed on the wall side nearer than the flange surface. 2. The air supply type ventilator according to claim 1, wherein the height of the fan in the axial direction is in a range of 30 to 45% with respect to the outer diameter of the fan. The air supply type ventilator according to claim 1, wherein the motor support portion is formed substantially parallel to an inflow angle of the blown airflow. The air supply type ventilator according to claim 1, wherein an orifice is provided on the outdoor side of the cylindrical portion. The air supply type ventilator according to claim 1, wherein the cylindrical portion is formed to have a length that covers the fan. The air supply type ventilator according to any one of claims 1, 4, and 5, wherein a rectangular gap is provided between the cylindrical portion and the plate filter.

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