JP2016169879A - Ventilation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent generation of mold in a bathroom.SOLUTION: A louver periphery opening 24 without a cut in four corners 23 is provided around a louver 21. On a rear surface 25 of the louver 21, a partition plate 26 is provided for guiding the air sucked in a centrifugal fan to the four corners 23 of the louver periphery opening 24. The air inside a bathroom sucked in the centrifugal fan is blown out to the peripheral direction of the centrifugal fan, a part of it is blown out of a discharge port for circulation and hits a side surface of a frame, then flows in the direction of the louver 21 along the side surface, hits the rear surface 25 of the louver 21, goes toward the periphery in which air density is low, and flows into the bathroom via the louver periphery opening 24. The air flowed to the four corners 23 flows into the bathroom via the louver periphery opening 24 while coming into contact with the partition plate 26, and the air in the bathroom is made to spread to the entire bathroom. Thus, a ventilation device can be acquired which can prevent generation of mold in the bathroom.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a ventilation device that is embedded in an opening provided in a ceiling of a bathroom, connected to a duct that is piped behind the ceiling and communicates with the outside, and performs ventilation and circulation in the bathroom.

  The exhaust fan is provided with a circulation fan so as to rotate integrally therewith, and the decorative frame is provided with an exhaust vent body so as to partition between the exhaust suction port and the circulation suction port, and the circulation suction port; A circulation vent body is provided between the circulation discharge port. Then, the air in the bathroom is discharged by the exhaust fan, and the air in the bathroom is sucked into the decorative frame by the circulation fan and discharged from the circulation outlet along the ceiling plate.

JP-A-9-42735

  In such a conventional ventilator, the air in the bathroom is sucked into the decorative frame by the circulation fan and then blown out from the four sides of the square along the ceiling plate from the circulation discharge port. Since there are partitions that block ventilation between the sides, that is, at the four corners, the inhaled air in the bathroom does not flow in the four corner directions, and the air in the bathroom does not flow into the water droplets adhering to the ceiling boards or the inner walls in the bathroom. However, the problem was that evaporation could not be promoted and mold was generated.

  Then, this invention solves the said conventional subject, and it aims at providing the ventilation apparatus which can prevent generation | occurrence | production of the mold | fungi in a bathroom.

  In order to achieve this object, the present invention has a box-like frame attached to the ceiling and having an opening facing the inside of the bathroom on the lower surface, and a suction port on the lower surface. , A scroll-like casing having an exhaust outlet and a circulation outlet at a position opposite to a side surface and a corner of the frame, a centrifugal fan disposed in the casing, and the centrifugal fan being rotated A louver having a motor, a panel having a grid covering an opening facing the inside of the bathroom, and a louver having a cylindrical portion around the grid and having a frame joined to the panel via a plurality of reinforcing ribs. A louver peripheral opening is provided at the four corners in the periphery of the louver, and a partition plate for guiding the air sucked into the centrifugal fan to the four corners of the louver peripheral opening is provided on the back surface of the louver. And than, thereby it is to achieve the intended purpose.

  According to the present invention, a box-shaped frame attached to the ceiling and having an opening facing the inside of the bathroom on the lower surface, disposed in the frame, and having a suction port on the lower surface, the side surface and the corner of the frame A scroll-shaped casing having an exhaust outlet and a circulation outlet at opposite locations, a centrifugal fan disposed in the casing, a motor that rotates the centrifugal fan, and the inside of the bathroom. A panel having a lattice covering the opening, and a louver having a cylindrical portion around the lattice and having a frame joined to the panel via a plurality of reinforcing ribs. A louver peripheral opening without a louver is provided, and a partition plate for guiding air sucked into the centrifugal fan to the four corners of the louver peripheral opening is provided on the back surface of the louver. The air in the bathroom sucked in is blown out in the peripheral direction of the centrifugal fan, a part of it is blown out from the circulation discharge port, hits the side of the frame, flows in the direction of the louver, hits the back of the louver, and has a low air density Flowing into the bathroom through the opening around the louver facing the air, the air flowing in the four corners flows into the bathroom through the opening around the louver while contacting the partition plate, and distributes the air in the bathroom throughout the bathroom. Therefore, the effect that generation | occurrence | production of the mold | fungi in a bathroom can be prevented can be acquired.

Side surface sectional drawing of the ventilation apparatus of Embodiment 1 of this invention The perspective view which shows the internal structure of the ventilation apparatus A perspective view showing the louver of the ventilation device Side view of the ventilator

  The ventilator according to claim 1 of the present invention is attached to the ceiling, has a box-shaped frame having an opening facing the inside of the bathroom on the lower surface, and is disposed in the frame, has a suction port on the lower surface, and has a side surface. And a scroll-like casing having an exhaust outlet and a circulation outlet at a position facing the corner of the frame, a centrifugal fan disposed in the casing, and a motor that rotates the centrifugal fan A panel having a lattice covering the opening facing the inside of the bathroom, and a louver having a cylindrical portion around the lattice and having a frame joined to the panel via a plurality of reinforcing ribs. Has a structure in which openings around the louver are provided at the four corners, and a partition plate is provided on the back surface of the louver to guide the air sucked into the centrifugal fan to the four corners of the opening around the louver.As a result, the air in the bathroom sucked into the centrifugal fan is blown out in the peripheral direction of the centrifugal fan, and a part of the air is blown out from the circulation discharge port, hits the side surface of the frame, flows in the direction of the louver, and hits the back surface of the louver. Flows into the bathroom through the louver peripheral opening facing the surroundings where the air density is low, and the air flowing in the four corners flows into the bathroom through the louver peripheral opening while contacting the partition plate, and the air in the bathroom is transferred to the entire bathroom. As a result, the occurrence of mold in the bathroom can be prevented.

  Further, the partition plate may be configured such that one end is joined to the substantially central portion of the cylindrical portion and the other end is joined to reinforcing ribs provided near the four corners of the louver. As a result, the external force applied from the outside of the frame is repelled by the reinforcing ribs, and the circulating wind is discharged from the openings around the four louvers where there are no obstacles. There exists an effect that a fall can be prevented.

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

(Embodiment 1)
As shown in FIGS. 1 and 2, the ventilator according to the first embodiment is attached from below to a ceiling opening 3 that is an opening provided in the ceiling 2 of a bathroom 1 of an apartment house such as a house or apartment.

  The ventilator has a box-shaped frame 6 having a substantially square opening 5 facing the inside of the bathroom 1 on the lower surface 4.

  The frame 6 is provided with a suction port 10 on a lower surface having a substantially square partition frame 9 around a fan suction port 8 of a centrifugal fan 7 described later such as a sirocco fan.

  An exhaust discharge port 12 that is a normal discharge port of the scroll-shaped casing 11 is provided on the side surface of the frame 6. Further, a circulation discharge port 14 is provided at a location opposite to the casing 11 at at least one corner 13 of the frame 6, preferably at four corners 13.

  The centrifugal fan 7 described above and an AC (alternating current) or DC (direct current) motor 15 for rotating the centrifugal fan 7 are disposed in the casing 11.

  And the panel 16 which has the grating | lattice 17 which covers the opening 5 which faces the bathroom 1 inside is provided.

  The lattice 17 is provided with a cylindrical portion 18 in which, for example, four rectangular plates are connected so as to surround the periphery of the lattice 17.

  Further, a plurality of reinforcing ribs 19 are provided on the panel 16, and a frame 20 that is joined via the reinforcing ribs 19 is provided.

  The louver 21 is constituted by the panel 16 provided with the lattice 17, the cylindrical portion 18, the reinforcing rib 19, and the frame 20.

  In addition, louver peripheral openings 24 are provided at four corners 23 on the four surfaces 22 provided around the louver 21, that is, between the panel 16 and the frame 20.

  A partition plate 26 that guides the air sucked into the centrifugal fan 7 to the four corners 23 of the louver peripheral opening 24 is provided on the back surface 25 of the louver 21, that is, on the centrifugal fan 7 side.

  With this configuration, the air in the bathroom 1 sucked into the centrifugal fan 7 is blown out inside the casing 11 in the circumferential direction of the centrifugal fan 7.

  A part of the blown air is blown out from the circulation discharge port 14 to the inside of the frame 6.

  The four side surfaces 27 of the frame 6, that is, the inner side which is the centrifugal fan 7 side, come into contact with each other, and flow along the side surface 27 toward the louver 21.

  Then, it strikes the back surface 25 of the louver 21 and flows into the bathroom 1 through the louver peripheral opening 24 toward the periphery where the air density is low.

  The air flowing into the four corners 23 flows into the bathroom 1 through the louver peripheral opening 24 while contacting the partition plate 26.

  Therefore, since the warm air in the bathroom 1 is spread throughout the bathroom 1, water droplets in the bathroom 1 are applied with the warm air and evaporated.

  Or generation | occurrence | production of the mold | fungi in the bathroom 1 is prevented by making a water drop gradually small by the wind pressure which blows off warm air, evaporating, and eliminating a water drop.

  Further, the partition plate 26 is joined at one end 28 to the substantially central portion 30 of the cylindrical portion 18 and at the other end 29 to the reinforcing ribs 19 provided in the vicinity of the four corners 23 of the louver 21.

  Specifically, the reinforcing rib 19 is provided with a rectangular plate 31 from the substantially central portion 30 of the cylindrical portion 18 toward the four corners 23 nearby.

  And it joins to the reinforcement rib 19 provided in the vicinity of the four corners 23.

  Therefore, with this configuration, an external force applied from the outside of the frame 20 (for example, a force applied to the frame 20 when the louver 21 is dropped) is repelled by the reinforcing rib 19 and the shape of the frame 20 is maintained.

  Then, the circulating air is discharged from the louver surrounding openings 24 at the four corners 23 where there is no obstacle, and it is possible to prevent a decrease in the circulating air volume while maintaining the strength at which the panel 16 and the frame 20 are joined.

  Since the ventilator according to the present invention can prevent the occurrence of mold in the bathroom, it is useful for a heat exchange ventilator installed in a living room.

DESCRIPTION OF SYMBOLS 1 Bathroom 2 Ceiling 3 Ceiling opening 4 Lower surface 5 Opening 6 Frame 7 Centrifugal fan 8 Fan suction port 9 Partition frame 10 Suction port 11 Casing 12 Exhaust outlet 13 Corner 14 Circulation outlet 15 Motor 16 Panel 17 Grid 18 Tube part 19 Reinforcement rib 20 Frame 21 Louver 22 Surface 23 Four corners 24 Louver surrounding opening 25 Back surface 26 Partition plate 27 Side surface 28 One end 29 The other end 30 A substantially central portion 31 A rectangular plate

Claims (2)

A box-shaped frame attached to the ceiling and having an opening facing the inside of the bathroom on the lower surface, and disposed in the frame, having a suction port on the lower surface, and for exhausting at a location facing the side surface and the corner of the frame A scroll-shaped casing having a discharge port and a circulation discharge port; a centrifugal fan disposed in the casing; a motor that rotates the centrifugal fan; and a grid that covers an opening facing the inside of the bathroom. And a louver having a cylindrical portion around the lattice and having a frame joined to the panel via a plurality of reinforcing ribs. And a partition plate for guiding air sucked into the centrifugal fan to the four corners of the opening around the louver. The ventilator according to claim 1, wherein one end of the partition plate is joined to a substantially central portion of the cylindrical portion, and the other end is joined to reinforcing ribs provided near the four corners of the louver.

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