JP6439140B2 - Ventilation equipment - Google Patents

Description

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

  Conventionally, as this type of ventilation device, air is supplied to the indoor side from a space different from the room targeted for ventilation, and at the same time, the air in the room to be ventilated is exhausted to further improve the efficiency of ventilation and drying. Ventilators with improved air pressure are known. (For example, refer to Patent Document 1).

  Hereinafter, this type of ventilator will be described with reference to FIG.

  As shown in FIG. 5, the ventilator main body 101 is installed in an attic space or a ceiling space in a building, and at the same time, an air supply type ventilator 102 is installed in a similar space. The ventilator main body 101 has a supply air suction port 104 on the side surface of the main body frame 103 and an exhaust port 105 on the other side surface, and an indoor suction portion 111 on the lower surface so as to cover the indoor side surface of the ventilator main body 101. A decorative grill 106 having an indoor discharge portion 112 is disposed in the periphery. In addition, an electric motor 107 is fixed inside the ventilation apparatus main body 101, and a centrifugal blower blade 108 is fixed to the electric motor 107. The centrifugal blower blade 108 is disposed in an air supply chamber formed by a casing 109, and an orifice 110 is provided below the air supply chamber. An air supply air passage 113 is provided between the main body frame 103 and the casing 109.

  In this structure, indoor air passes through the indoor suction portion 111 by the centrifugal blower blades 108 and is sucked into the ventilator main body 101 from the orifice 110, and then exhausted from the exhaust port 105 to the outside through the exhaust duct. On the other hand, the air supplied from the air supply type ventilator 102 is introduced from the air supply inlet 104, passes through the air supply air passage 113 inside the ventilator main body 101, and passes through the indoor discharge portion 112 of the decorative grill 106 to the room. It is configured to be supplied with air.

Japanese Patent Application Laid-Open No. 7-145973

  In such a conventional ventilator, it is possible to supply air simultaneously to a ventilator that exhausts only the room air, so that the effectiveness of ventilation is excellent. However, there was a problem of mold generation and residual odor in a humid space or a place where air is difficult to reach.

  Therefore, the present invention solves the above-described conventional problems, and an object of the present invention is to provide a ventilator that suppresses generation of mold and residual odor even in a high humidity space or a place where air is difficult to reach.

  In order to achieve this object, the present invention is a box-shaped frame attached to a ceiling and having an opening on the lower surface facing the indoor side, a centrifugal fan disposed in the frame, and a frame on the side of the frame. A ventilator having a discharge port, wherein the frame is provided with a decorative panel so as to cover the opening, and the blower has a scroll shape having a blower suction port on a lower surface and a blower discharge port on a side surface. Casing, a centrifugal blower blade disposed in the casing, and an electric motor that rotationally drives the centrifugal blower blade. The decorative panel has a panel suction port in the center and a panel in the peripheral part. And a first circulation port and a first circulation port on the opposite side of the blower discharge port and on the downstream side in the rotation direction of the centrifugal blower blades. Less than A second circulation port is provided in the side wall, and a suction ventilation space that communicates the blower suction port and the panel suction port is provided in the frame, and the first circulation port and the second circulation port are provided. A circulation ventilation space that communicates with the panel discharge port is provided, thereby achieving the intended purpose.

According to the present invention, there is provided a box-shaped frame attached to the ceiling and having an opening on the lower surface facing the indoor side, a centrifugal blower disposed in the frame, and a frame discharge port on the side of the frame. The frame is provided with a decorative panel so as to cover the opening, and the blower has a scroll-like casing having a blower suction port on a lower surface and a blower discharge port on a side surface, A centrifugal blower blade disposed in the casing and an electric motor that rotationally drives the centrifugal blower blade, and the decorative panel has a panel suction port at the center and a panel discharge port at the periphery. The side wall portion of the casing other than the first circulation port and the first circulation port provided on the side wall of the casing on the opposite side of the blower discharge port and on the downstream side in the rotation direction of the centrifugal blowing blade. On the second A suction port that communicates the blower suction port and the panel suction port inside the frame, and the first circulation port, the second circulation port, and the panel discharge port. circulating air communicating spaces provided, further such as by the a first circulation port and a second circulation port disposed in the vicinity of the upper surface of the frame, indoor air sucked from the decorative panel suction port, the first circulation port And the second circulation port can be discharged to the circulation ventilation space, so that the circulation air discharged from each direction of the decorative panel discharge port can flow more uniformly into the indoor space. As a result, it is possible to distribute the circulating wind into the room, and the effect of suppressing the generation of mold and the remaining of odor is achieved.

Side surface sectional drawing which shows the ventilation apparatus of Embodiment 1 of this invention Upper perspective view showing the ventilator Lower perspective view showing a decorative panel of the ventilation device The upper perspective view which shows the ventilator of Embodiment 2 of this invention Side sectional view showing a conventional ventilation system

A ventilator according to the present invention includes a box-shaped frame attached to the ceiling and having an opening on the lower surface facing the indoor side, a centrifugal blower disposed in the frame, and a frame outlet on the side of the frame. The frame is provided with a decorative panel so as to cover the opening, and the blower includes a scroll-like casing having a blower suction port on a lower surface and a blower discharge port on a side surface. The centrifugal blower blade disposed in the casing and an electric motor that rotationally drives the centrifugal blower blade, and the decorative panel has a panel suction port at the center and a panel discharge port at the peripheral part. The side wall portion of the casing is provided with a first circulation port on the opposite side of the blower discharge port and on the downstream side in the rotational direction of the centrifugal blower blade, and the first circulation port other than the first circulation port. ~ side A second circulation port is provided in the section, and a suction ventilation space is provided in the frame to communicate the blower suction port and the panel suction port. The first circulation port, the second circulation port, and the panel By providing a circulation ventilation space that communicates with the discharge port,
The indoor air sucked from the decorative panel suction port can be discharged from the first circulation port and the second circulation port to the circulation ventilation space, so the circulating air discharged from each direction of the decorative panel discharge port is more uniform. It can flow into the indoor space. As a result, it is possible to distribute the circulating wind into the room, and the effect of suppressing the generation of mold and the remaining of odor is achieved.

By arranging the first circulation port and the second circulation port in the vicinity of the corner of the frame,
Since the circulating wind can be efficiently discharged near the corner of the frame where the circulating ventilation space is larger than the other parts, the circulating wind discharged from each direction of the discharge outlet for the decorative panel efficiently flows into the indoor space. Can do. As a result, it is possible to distribute the circulating wind into the room, and the effect of suppressing the generation of mold and the remaining of odor is achieved.

  Further, by arranging the first circulation port and the second circulation port in the vicinity of the upper surface of the frame, the first circulation port and the second circulation port are arranged in the vicinity of the upper surface of the frame, so that the circulation ventilation space can be maximized. Many can be secured. By ensuring a large circulation ventilation space, it is possible to make the wind speed of the circulation wind discharged from the first circulation port and the second circulation port more uniform. As a result, it is possible to distribute the circulating wind into the room, and the effect of suppressing the generation of mold and the remaining of odor is achieved.

  Further, by providing the first circulation port or the second circulation port with a shielding means for adjusting the opening rate, the opening rate of the first circulation port or the second circulation port is increased in a direction in which the circulating wind is difficult to reach, and the circulating wind is increased. By reducing the opening rate of the 1st circulation port or the 2nd circulation port in the direction where it is easy to spread, it becomes possible to spread the circulation wind to the place where the air is difficult to spread, thus suppressing the occurrence of mold and odor The effect of doing.

  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 present embodiment projects from the ceiling opening 3 of the ceiling 2 of the room 1 (for example, a high humidity bathroom) to the ceiling back 4. The frame 5 having a substantially rectangular parallelepiped shape is provided with a frame discharge port 8 for connecting an opening 6 on the lower surface and a duct 7 communicating with the outside on one side surface. Further, a blower 9 is provided inside the frame 5. The blower 9 is composed of a centrifugal blower blade 10 and a spiral casing 11 surrounding the outer periphery of the centrifugal blower blade 10. Further, the centrifugal blower blade 10 is fixed to the rotating shaft of the electric motor 12.

  The casing 11 includes a side wall portion 13 forming a scroll, a blower discharge port 14 communicating with the frame discharge port 8, and a blower suction port 15 provided below the centrifugal blower blade 10.

  Here, a bell mouth 16 for guiding the air to the centrifugal blower blade 10 is provided at the peripheral edge of the blower suction port 15. In the vicinity of the blower discharge port 14 of the side wall portion 13, as shown in FIG. A tongue 17 for guiding the frame discharge port 8 is provided.

  Further, the side wall 13 is provided with a first circulation port 18 and a first circulation port 18 on the opposite side of the blower discharge port 14 and on the downstream side in the rotation direction of the centrifugal blower blade 10 (hatched portion in FIG. 2). A second circulation port 19 is provided in the side wall portion 13 other than. For example, the second circulation port 19 may be provided on the side wall portion 13 on the opposite side of the blower discharge port 14 and on the upstream side in the rotational direction of the centrifugal blower blade 10, or may be provided on the blower discharge port 14 side. . Here, the opposite side of the blower discharge port 14 refers to a region on the opposite side of the blower discharge port 14 inside the frame 5, and the blower discharge port 14 side refers to a region on the blower discharge port 14 side half in the frame 5. .

  In addition, an opening 6 facing the room 1 is provided on the lower surface of the frame 5, and a bowl-shaped decorative panel 20 is provided so as to cover the opening 6. As shown in FIG. 3, a panel suction port 21 for taking in air from the room 1 is provided in the bowl-shaped central portion of the decorative panel 20. Further, a panel discharge port 22 that discharges in a substantially horizontal direction is provided at the peripheral edge of the decorative panel 20. The panel discharge ports 22 have four locations near the outer periphery of the decorative panel 20 and are configured to discharge in four directions. In addition, although it described as four places in this Embodiment 1, if it is a form which blows off from the outer peripheral part of the decorative panel 20, the number may be four or less and more than four. Also good.

  Here, a suction ventilation space 23 for communicating the blower suction port 15 and the panel suction port 21 is provided inside the frame 5, and the first circulation port 18, the second circulation port 19, and the panel discharge port 22 are communicated. A circulating ventilation space 24 is provided.

  Further, as shown in FIG. 2, the first circulation port 18 and the second circulation port 19 may be arranged near the corners of the frame 5.

  Further, as shown in FIGS. 1 and 2, the first circulation port 18 and the second circulation port 19 may be arranged near the upper surface of the frame 5.

  In such a configuration, when the blower 9 is operated, the air in the room 1 (for example, a high-humidity bathroom, etc.), as shown in the exhaust air 25 of FIGS. 23, being drawn into the blower 9 from the blower inlet 15 while being guided by the bell mouth 16. Part of the sucked air is exhausted from the blower outlet 14 through the frame outlet 8 and through the duct 7 to the outside.

  Furthermore, by providing the 1st circulation port 18 and the 2nd circulation port 19 of the side wall part 13 of the casing 11, a part of air suck | inhaled by the air blower 9 is shown to the circulation wind 26 of FIGS. 1-3. As described above, the air is discharged to the first circulation port 18 and the second circulation port 19. Then, the air passes through the circulation ventilation space 24 and is discharged from the panel discharge port 22 into the room 1 (for example, a bathroom with high humidity).

  Since the air is boosted by the rotational force of the centrifugal blower blade 10, the first circulation port 18 is arranged on the downstream side (hatched portion in FIG. 2) in the rotational direction of the centrifugal blower blade 10, so Can be discharged from the first circulation port 18.

  Further, by providing the second circulation port 19 on the side wall portion 13 other than the first circulation port 18, air can be discharged from the second circulation port 19 in addition to the first circulation port 18. Here, when the second circulation port 19 is not provided, air is discharged only from the first circulation port 18, so the wind speed of the circulation air 26 in the circulation ventilation space 24 is high in the vicinity of the first circulation port 18. The wind speed was uneven. However, by allowing the air to be discharged from the second circulation port 19 as well, the variation in the wind speed of the circulating air 26 in the circulating ventilation space 24 can be reduced and made more uniform. As a result, the circulating air 26 discharged from each direction of the panel discharge port 22 can flow more uniformly into the indoor space. For example, the circulating air 26 can be discharged almost uniformly from each direction of the panel discharge port 22.

  As a result, in the room 1 (for example, a high-humidity bathroom), the room 1 (for example, a high-humidity bathroom) is provided from a bathroom air supply port (not shown) provided on the door of a bathroom unit bath or the like. Outside dry air flows in. Then, the room 1 (for example, a high humidity bathroom) is dried by exhausting the moisture adhering in the room 1 (for example, a high humidity bathroom). Further, by discharging the circulating air 26 from the panel discharge port 22, evaporation of the interior space of the room 1 (for example, a high humidity bathroom) is further promoted.

  Here, the effect of the circulating air 26 will be described in detail.

  In general, simply drawing air from an air supply port (not shown) results in a uniform air flow from the air supply port to the frame 5, so that it is difficult for air to reach the part away from the flow. . Therefore, mold was generated due to residual odor and moisture drying.

  However, by discharging the circulating air 26 from the panel discharge port 22, in addition to a general uniform air flow, it is possible to send air to a portion where the air is difficult to reach. Since air spreads throughout the room 1 (for example, a bathroom with high humidity), it is possible to suppress odor residue and promote moisture drying. Furthermore, since it becomes possible to keep the indoor 1 (for example, a high humidity bathroom etc.) in a dry state, generation | occurrence | production of mold | fungi can also be suppressed.

  Here, the air discharged from the panel discharge port 22 is discharged in the horizontal direction, and the circulating air 26 flows along the ceiling 2 of the room 1 (for example, a high humidity bathroom). It can be said that drying is promoted because the wind spreads in a high humidity bathroom. As shown in FIG. 2, the circulation ventilation space 24 has a frame 5 in a substantially rectangular parallelepiped shape, so that the space near the corner is larger than the other parts and the ventilation resistance is small. By arranging the first circulation port 18 and the second circulation port 19 in the vicinity of the corner of the frame 5, the circulation air 26 can be efficiently discharged to the circulation ventilation space 24, and the circulation air 26 is discharged to the panel discharge port 22. It becomes possible to exhale efficiently from. As a result, since air spreads throughout the room 1 (for example, a bathroom with high humidity), it is possible to suppress odor residue, promote moisture drying, and suppress mold generation.

  Further, as shown in FIGS. 1 and 2, the first circulation port 18 and the second circulation port 19 are arranged in the vicinity of the upper surface of the frame 5, so that the largest circulation ventilation space 24 can be secured. By discharging the circulating wind 26 to the circulating ventilation space 24 of a large space, the wind speed is weakened when the circulating wind 26 passes through the circulating ventilation space 24 and flows downward while filling the circulating ventilation space 24. The circulating air 26 discharged from the panel discharge port 22 is evenly distributed throughout the room 1 (for example, a bathroom with high humidity). As a result, it is possible to suppress odor residue, promote moisture drying, and suppress mold generation.

(Embodiment 2)
The same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 4, the first circulation port 18 and the second circulation port 19 are provided with shielding means 27 for adjusting the aperture ratio. For example, in this embodiment, the opening of the first circulation port 18 and the second circulation port 19 is reduced by sliding the shielding means 27. In addition, any means that adjusts the aperture ratio, such as a method for opening / closing the shielding means 27 and a method for attaching the shielding means 27, may be used.

  In the above configuration, the air volume of the circulating air 26 can be increased by increasing the opening ratio of the first circulating port 18 or the second circulating port 19 in the direction in which the circulating air 26 is desired to be distributed. Further, by reducing the opening ratio of the first circulation port 18 or the second circulation port 19 in the direction in which the circulation air 26 is not desired to be distributed, the air volume of the circulation air 26 can be reduced.

  Therefore, when the direction of the room 1 (for example, a high-humidity bathroom) is large, or lighting or furniture is arranged, and the air is difficult to spread throughout the room 1 (for example, a high-humidity bathroom), the circulating air Increase the opening rate of the first circulation port 18 or the second circulation port 19 in the direction in which the 26 is difficult to reach, and decrease the opening rate of the first circulation port 18 or the second circulation port 19 in the direction in which the circulation wind 26 is easy to spread. Thus, it becomes possible to distribute the circulating wind 26 to a place where air is difficult to reach. As a result, since air spreads throughout the room 1 (for example, a bathroom with high humidity), it is possible to suppress odor residue, promote moisture drying, and suppress mold generation.

  The ventilator according to the present invention is expected to be used as a residential ventilator.

DESCRIPTION OF SYMBOLS 1 Indoor 2 Ceiling 3 Ceiling opening part 4 Ceiling back 5 Frame 6 Opening 7 Duct 8 Frame discharge port 9 Blower 10 Centrifugal blower blade 11 Casing 12 Electric motor 13 Side wall part 14 Blower discharge port 15 Blower inlet 16 Bellmouth 17 Tongue 18 1 circulation port 19 2nd circulation port 20 decorative panel 21 panel suction port 22 panel discharge port 23 suction ventilation space 24 circulation ventilation space 25 exhaust air 26 circulation air 27 shielding means

Claims (3)

A ventilator having a box-like frame attached to the ceiling and having an opening on the lower surface facing the indoor side, a centrifugal blower disposed in the frame, and a frame outlet on the side of the frame ,
The frame is provided with a decorative panel so as to cover the opening,
The blower is composed of a scroll-like casing having a blower suction port on a lower surface and a blower discharge port on a side surface, a centrifugal blower blade disposed in the casing, and an electric motor that rotationally drives the centrifugal blower blade. And
The decorative panel is provided with a panel suction port at the center and a panel discharge port at the peripheral part,
The side wall portion of the casing has a first circulation port on the opposite side of the blower discharge port and on the downstream side in the rotational direction of the centrifugal blower blade, and the second side wall portion other than the first circulation port. A circulation port,
A suction ventilation space that communicates the blower suction port and the panel suction port is provided inside the frame,
Providing a circulation ventilation space for communicating the first circulation port, the second circulation port, and the panel discharge port ;
The ventilator characterized in that the first circulation port and the second circulation port are arranged in the vicinity of a corner of the frame . A ventilator having a box-like frame attached to the ceiling and having an opening on the lower surface facing the indoor side, a centrifugal blower disposed in the frame, and a frame outlet on the side of the frame ,
The frame is provided with a decorative panel so as to cover the opening,
The blower includes a scroll-like casing having a blower suction port on a lower surface and a blower discharge port on a side surface, a centrifugal blower blade disposed in the casing, and an electric motor that rotationally drives the centrifugal blower blade. And
The decorative panel is provided with a panel suction port at the center and a panel discharge port at the peripheral part,
The side wall portion of the casing has a first circulation port on the opposite side of the blower discharge port and on the downstream side in the rotational direction of the centrifugal blower blade, and the second side wall portion other than the first circulation port. A circulation port,
A suction ventilation space that communicates the blower suction port and the panel suction port is provided inside the frame,
Providing a circulation ventilation space for communicating the first circulation port, the second circulation port, and the panel discharge port;
The ventilator characterized in that the first circulation port and the second circulation port are arranged in the vicinity of the upper surface of the frame. A ventilator having a box-like frame attached to the ceiling and having an opening on the lower surface facing the indoor side, a centrifugal blower disposed in the frame, and a frame outlet on the side of the frame ,
The frame is provided with a decorative panel so as to cover the opening,
The blower is composed of a scroll-like casing having a blower suction port on a lower surface and a blower discharge port on a side surface, a centrifugal blower blade disposed in the casing, and an electric motor that rotationally drives the centrifugal blower blade. And
The decorative panel is provided with a panel suction port at the center and a panel discharge port at the peripheral part,
The side wall portion of the casing has a first circulation port on the opposite side of the blower discharge port and on the downstream side in the rotational direction of the centrifugal blower blade, and the second side wall portion other than the first circulation port. A circulation port,
A suction ventilation space that communicates the blower suction port and the panel suction port is provided inside the frame,
Providing a circulation ventilation space for communicating the first circulation port, the second circulation port, and the panel discharge port;
A ventilator comprising a shielding means for adjusting an aperture ratio at the first circulation port or the second circulation port.

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