JP5460921B2 - Bathroom Dryer - Google Patents

Description

  The present invention relates to a bathroom dryer installed on a ceiling of a bathroom and ventilating, drying, and heating the bathroom.

  Conventionally, many proposals have been made regarding bathroom dryers that ventilate, dry, and heat the air in the bathroom. The bathroom dryer is installed on the ceiling or upper side wall of the bathroom, and the bathroom side is covered with a panel for improving the design and safety. In the gap between the panel and the bathroom dryer body, the moisture in the bathroom tends to stay and mold tends to occur. For this reason, various proposals have also been made regarding mold control on the back of the panel. Further, as a countermeasure against mold around the air outlet, it is necessary to improve the circulation of the surrounding air, and several proposals have been made for improving the air circulation of the air outlet.

  A multi-room bathroom dryer has two functions: a function of ventilating, drying and heating the bathroom, and a function of ventilating other rooms. When each function is operated independently, at least two An air path is required. Therefore, the bathroom dryer for multi-rooms is larger than the bathroom dryer for one room with only a bathroom, and installation workability and maintainability are poor. Various proposals have been made for multi-room bathroom dryers in order to improve installation workability and maintainability.

  For example, a ventilation heater for a bathroom proposed in Patent Document 1 has a lower surface located at a position facing a main body opening, and projects from the lower surface side toward the ceiling inside the lower surface outer peripheral frame and protrudes toward the ceiling. A suction port is provided in a louver frame formed in a square frame shape so as to close the space between the two and the air in the bathroom is sucked from the suction port. By providing this suction port, air can be prevented from staying in the space formed between the louver frame and the ceiling, and the internal space of the louver frame can be dried by the airflow, thereby suppressing the occurrence of mold. Also, by sucking air from the suction port of the louver frame, the air blown to the center of the bathroom hits the floor and rises along the bathroom wall surface, flows along the ceiling and becomes a circulating flow sucked into the suction port. , Bathroom air circulation is improved.

  In addition, the sauna device proposed in Patent Document 2 increases the air volume of the blower at the start of operation by the control device, enhances the circulation of the bathroom air, makes the temperature distribution uniform, and performs efficient humidification, Condensation water adherence to the outlet is suppressed. Furthermore, an opening is provided on the air passage side surface of the air outlet provided with the louver, and the air volume is increased by the induced flow. By the induced flow, the air around the air outlet is sucked in, the air around the air outlet is actively circulated, and the performance is improved by increasing the air volume.

  In addition, the air circulation device proposed in Patent Document 3 is provided with a nozzle at the front end of a pipe through which air blown from an electric fan passes, and by providing a venturi with a gap at the front end of the nozzle. The air circulation in the space is improved.

Japanese Patent No. 4432654 Japanese Patent No. 4367047 Japanese Patent No. 4293325

  However, since the bathroom dryer proposed in Patent Document 1 opens only two opposing side surfaces of the rectangular louver frame, there is a problem that air tends to stay in the internal space close to the other side surfaces. is there. Moreover, it is thought that the air path for forming a blower outlet is arrange | positioned also in the internal space around the blower outlet in a louver frame, and air retains. In addition, there is a problem that the lower surface of the louver is a curved surface and the cleaning property is poor. Furthermore, the air circulation of the entire bathroom has a problem that the air circulation around the side surface that is not open is poor because the opening surface of the louver frame is only two opposite side surfaces.

  Moreover, since the sauna apparatus described in patent document 2 controls an air blower by a control apparatus and increases an air volume, there exists a problem that a noise becomes large. In addition, in the case of using the induced flow, an air short circuit is generated on the side surface of the blower outlet side where the air suction port is located, so that an opening cannot be provided, and the periphery of the side surface is not provided. The problem is that the air circulation cannot be improved, and that there is little induced flow.

  The air circulation device described in Patent Document 3 is provided with a nozzle for generating an induced flow, and a large space for installing the nozzle is required in the air blowing portion. In addition, there is a problem that the cost increases due to the nozzle installation.

  The present invention has been made in view of the above, can suppress mold generated on the back side of the design panel and the bottom plate of the circulation unit, can increase the blowing air volume with small size, low noise, bathroom air An object of the present invention is to obtain a bathroom dryer that can improve the circulation of the water, improve the temperature distribution of the bathroom floor surface, and improve drying unevenness.

In order to solve the above-described problems and achieve the object, the present invention is formed by a housing and a bottom plate, a circulation suction port and a blowing guide grill are provided downward, a ventilation connection port is provided upward, and inside, A circulation fan, a circulation air passage provided with a damper for opening and closing the ventilation connection port and a heating unit, a circulation unit installed on the ceiling of the bathroom, and a ventilation air passage provided with an exhaust port, A design in which the ventilation unit connected to the ventilation connection port of the circulation unit and the outer edge portion are arranged to cover the lower surface of the circulation unit with a gap between the ceiling and the lower outer edge portion of the circulation unit and the panel, provided between the blowing guide grill and downstream end of the air circulation duct to the heating unit is arranged, provided with attractant flow openings to attract the ambient air into該吹out the grill, the location of the circulation unit The space between the plate-design panel, a partition plate for separating the blowing guide grille side and said circulation inlet port side, characterized in that provided on the bottom plate.

  In the bathroom dryer of the present invention, the lower surface of the circulation unit including the circulation suction port of the bathroom air is covered with the design panel with a gap, so that the air in the gap space on the back side of the design panel is sucked from the circulation suction port, Air retention on the back side of the design panel is reduced. In addition, the back side of the design panel and the bottom plate of the circulation unit are dried by the suction airflow, and generation of mold can be suppressed. In addition, due to the induced flow that is attracted into the blowout grill, the circulation of air can also be promoted around the blowout grill to suppress the occurrence of mold.

  In addition, bathroom air is sucked in from the entire periphery of the outer edge of the design panel, so the circulation of the bathroom air is good, and the blowing air volume is increased with low noise by using induced flow, and the bathroom floor surface temperature distribution and bathroom drying unevenness are reduced. It has improved.

FIG. 1 is a sectional view showing Embodiment 1 of a bathroom dryer according to the present invention. FIG. 2 is a cross-sectional view showing the downstream side of the circulation air passage when the rotational position of the damper is the ventilation position. FIG. 3 is a cross-sectional view showing the downstream side of the circulation air passage when the rotational position of the damper is in a dry and cool air position. FIG. 4 is a cross-sectional view showing the downstream side of the circulation air passage when the rotational position of the damper is the wind drying position. FIG. 5 is a cross-sectional view showing the downstream side of the circulation air passage when the rotational position of the damper is the heating position. FIG. 6 is a perspective view showing the blowing guide grill according to the first embodiment. FIG. 7 is a cross-sectional view illustrating a drive unit of the damper according to the first embodiment. FIG. 8 is a cross-sectional view showing the flow of air in the air passage of the bathroom dryer according to the first embodiment. FIG. 9 is a cross-sectional view showing the air flow around the blowing guide grill of the bathroom dryer according to the first embodiment. FIG. 10 is a sectional view showing Embodiment 2 of the bathroom dryer according to the present invention. FIG. 11 is a top view of the bathroom dryer according to the second embodiment.

  The bathroom dryer according to the embodiment has five operation modes of ventilation, drying, cool air, wind drying, and heating, and the operation mode can be switched by a remote controller. Further, in a multi-room bathroom dryer, ventilation in another room separate from the bathroom can be performed simultaneously with the above operation.

  In the ventilation operation, in the case of a bathroom dryer for one room, the circulating air blower is operated to exhaust the bathroom air to the outside. In the case of a multi-room bathroom dryer, the ventilation blower is operated to exhaust the air in both the bathroom and the other room to the outside.

  In the drying operation, the air blown from the bathroom by operating the circulation blower is divided into the circulation side and the ventilation side by the damper, and the air divided into the circulation side is heated by the heating unit to blow hot air into the bathroom. At the same time, the bathroom air diverted to the ventilation side is exhausted to the outside to dry the bathroom. At this time, the opening degree of the damper is adjusted so that the circulating air volume is larger than the ventilation air volume. In the case of a multi-room bathroom dryer, the ventilation blower is operated to exhaust the air in both the bathroom and the other room to the outside.

  In cool breeze operation, the air drawn from the bathroom by operating the circulation blower is divided into the circulation side and the ventilation side by the damper, and the air divided into the circulation side is blown into the bathroom, and the bathroom is divided into the ventilation side The exhaust air is exhausted outside to exhaust heat. In the cool breeze operation, the heating unit is not heated, and the circulating air is blown into the bathroom at room temperature. At this time, the opening degree of the damper is adjusted so that the circulating air volume is larger than the ventilation air volume. In the case of a multi-room bathroom dryer, the ventilation blower is operated to exhaust the air in both the bathroom and the other room to the outside.

  In the wind drying operation, the air sucked from the bathroom by operating the circulation blower was shunted to the circulation side and the ventilation side by the damper, and the air shunted to the circulation side was blown into the bathroom and was shunted to the ventilation side The bathroom air is exhausted outside to dry the bathroom. At this time, the opening degree of the damper is adjusted so that the ventilation air volume is larger than the circulating air volume. In the case of a multi-room bathroom dryer, the ventilation blower is operated to exhaust the air in both the bathroom and the other room to the outside. Unlike the drying operation, the wind drying operation dries the bathroom by blowing and ventilating without using warm air. Although it takes longer to dry than a normal drying operation, it saves energy.

  In the heating operation, the air blown from the bathroom by operating the circulation blower is caused to flow to the circulation side by the damper, heated by the heating unit, blown into the bathroom, and heated. In the case of a bathroom dryer for one room, the ventilation function is stopped during heating, but in the case of a bathroom dryer for multiple rooms, the ventilation of the other room can be performed by operating the ventilation fan.

  In order to operate in the above five operation modes, it is necessary to form four air passages in the circulation air passage, and each air passage is formed according to the rotational (peristaltic) position of the rotary damper as the damper. did. The rotational position of the rotary damper and the air path formation in each operation mode will be described in detail in the description of the embodiment.

  Embodiments of a bathroom dryer according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment 1 FIG.
1 is a cross-sectional view showing Embodiment 1 of a bathroom dryer according to the present invention, and FIG. 2 is a cross-sectional view showing a downstream side of a circulation air passage when the rotational position of a damper is a ventilation position. 3 is a cross-sectional view showing the downstream side of the circulation air passage when the rotational position of the damper is in the dry and cool air position, and FIG. 4 is the circulation air passage when the rotational position of the damper is in the air drying position. FIG. 5 is a cross-sectional view showing the downstream side of the circulation air passage when the rotational position of the damper is the heating position, and FIG. 6 is the blowout guide grill of the first embodiment. FIG. 7 is a cross-sectional view showing a drive part of the damper of the first embodiment, and FIG. 8 is a cross-sectional view showing the flow of air in the air passage of the bathroom dryer of the first embodiment. FIG. 9 shows the flow of air around the blowing guide grill of the bathroom dryer according to the first embodiment. A to cross section.

  As shown in FIG. 1, the bathroom dryer 91 according to the first embodiment includes a circulation air passage 2 a formed in the housing 16 </ b> A for ventilating, drying, and heating the bathroom, and for ventilating the bathroom. And a ventilation air passage 2 b formed in the exhaust duct connecting member 22. The exhaust duct connecting member 22 as a ventilation unit is connected to the ventilation connection port 9 of the circulation air passage 2a.

  The circulation air passage 2a is formed by a housing 16A and a circulation orifice (bottom plate) 17. The bathroom air circulation inlet 4 and the circulation outlet (blowout guide grille) 8 are provided downward, and the ventilation connection port is provided upstream on the downstream side. 9 is provided, the circulation blower 5 driven by the motor M1 is arranged on the inner upstream side, and the rotary damper 6 and the heating unit 7 are arranged on the inner downstream side. The circulation air passage 2a provided with the circulation fan 5, the rotary damper 6, and the heating unit 7 is referred to as a circulation unit 91A.

  The exhaust duct connecting member 22 as a ventilation unit is formed with a ventilation air passage 2b so that the exhaust direction is sideward (right direction in FIG. 1), and the exhaust port 21 is opened sideways. If an exhaust duct is connected to the exhaust port 21, the bathroom can be ventilated.

  A filter 20 that removes dust in the air is disposed on the upstream side of the circulation suction port 4. The lower side of the bathroom dryer 91 is covered with the design panel 14. On the upper side of the motor M1, a control unit 15 and a power supply connection unit (not shown) are arranged. A remote controller (not shown) is connected to the control unit 15 via a communication line, and the remote controller outputs an operation command to the control unit 15.

  The ventilation connection port 9 is provided on the top plate of the housing 16A, and air flows from the circulation air passage 2a through the ventilation connection port 9 to the ventilation air passage 2b. The circulation air passage 2a is formed by a housing 16A and a circulation orifice (bottom plate) 17, and is formed in a box shape in which the circulation suction port 4 and the ventilation connection port 9 are opened downward. The ventilation connection port 9 communicates with the ventilation air passage 2b when the rotary damper 6 is opened. The housing 16A is provided with a shaft through hole (not shown) for passing the rotation shaft of the drive motor M1. Further, the side plate of the housing 16 </ b> A is provided with an insertion port for inserting a holding member that holds the heating unit 7 and the rotary damper 6.

  The circulation blower 5 is a single suction sirocco fan blower, and is disposed on the upstream side of the circulation air passage 2 a so as to face the circulation suction port 4. The air blown out from the circulation blower 5 is diverted by the rotary damper 6 into the downstream side of the circulation air passage 2 a flowing from the heating unit 7 to the circulation outlet 8 and the ventilation air passage 2 b passing through the ventilation connection port 9. The motor M1 is installed on the upper side of the circulation air passage 2a.

  The heating unit 7 includes, for example, a plurality of heat generating elements arranged at intervals, or a plurality of heat dissipating fins provided on the heat generating element to form an air path around the heat generating element or the heat dissipating fins. The electric heater is configured to dissipate heat through the air, and the heating element in which the electric insulator and the heat conductor are disposed around the electric heater is housed in a metal pipe.

  The heating unit 7 is disposed on the most downstream side of the circulation air passage 2a. In order to suppress overheating of the heating unit 7, it is preferable to use a PTC (Positive Temperature Coefficient) heater. Since the PTC heater uses a PTC element whose resistance value suddenly rises at a predetermined temperature (Curie temperature) as a heating element, it has a self-temperature control function and is excellent in safety and temperature. Control is unnecessary and low cost.

  As shown in FIG. 6, the circulation outlet (blowout guide grille) 8 is a rectangular air passage that is contracted (reduced) (an air passage in which the air passage area decreases toward the downstream side). By curving the side plate on the long side of the air passage frame, the air passage area is reduced. The blowout guide grill 8 is arranged with a gap at the downstream end of the circulation air passage 2a where the heating unit 7 is arranged, but the air passage area before the reduction is reduced to the circulation air where the heating unit 7 is arranged. It is larger than the air passage area at the downstream end of the passage 2a.

  A gap between the downstream end of the circulation air passage 2 a and the blowing guide grill 8 serves as an induction flow opening 31 for drawing air around the blowing guide grill 8 into the blowing guide grill 8. The attraction opening 31 is oriented in a direction perpendicular to the air blowing direction at the downstream end of the circulation air passage 2a. The air passage area of the blowing guide grille 8 is made larger than the air passage area at the downstream end of the circulation air passage 2a, and the induction flow opening 31 is directed in a direction perpendicular to the air blowing direction at the downstream end of the circulation air passage 2a. Thus, the induced flow can be efficiently generated without providing a nozzle.

  Further, the blowing guide grill 8 has wing plates arranged in parallel, and can direct the blowing air in a certain direction. In addition, a rotating shaft may be provided in a slat and you may adjust a wind direction by adjusting direction by an adjustment means.

  The rotary damper 6 is disposed on the lower side of the ventilation connection port 9 between the circulation fan 5 and the heating unit 7 in the circulation air passage 2a, and has a plate shape with a flat front end and a base end and a curved middle. Is formed. As shown in FIG. 7, the rotary damper 6 rotates around a damper rotation shaft 23 provided at the base end portion. A fan gear 24 is fixed to the damper rotating shaft 23 and the side portion of the rotary damper 6, and the rotary damper 6 can be rotated by rotating the fan gear 24.

  The rotary damper 6 is driven by a speed reducer that combines a fan gear 24 and a small gear 25. The small gear 25 is rotated by, for example, a driving means such as a stepping motor, and the rotary damper 6 is rotated and positioned via the fan-shaped gear 24 to constitute a part of the circulation air path 2a and / or the ventilation air path 2b. To do.

  The rotating damper 6 contacts the top plate of the housing 16A in the clockwise direction to the position where the ventilation connection port 9 is closed, and contacts the circulation orifice (bottom plate) 17 in the counterclockwise direction to contact the circulation air passage 2a. Is closed to the position where the upstream side of the circulation air passage 2a communicates with the ventilation connection port 9, and has a rotatable angle range (about 30 °).

  The rotational position of the rotary damper 6 is determined by rotating the rotary damper 6 clockwise or counterclockwise over the movable angle range and rotating it to the position shown in FIG. 5 or FIG. 2 where the rotation stops. Thereafter, as shown in FIG. 3 or FIG. 4, positioning control is performed to rotate the rotary damper 6 to a position where the upstream side of the circulating air passage 2 a communicates with both the downstream side of the circulating air passage 2 a and the ventilation connection port 9.

  The design panel 14 is attached to the housing 16A or the ceiling so as to cover the exposed portion of the housing 16A in the bathroom. The design panel 14 is formed in a flat shape, and is attached with a gap between the ceiling surface and the lower outer edge of the circulation unit 91 </ b> A and the outer peripheral upward side wall of the design panel 14. Inhale air from the bathroom. By forming the design panel 14 in a flat plate shape, the design panel surface can be easily cleaned.

  The control unit 15 includes a storage element in which a predetermined control program is stored, and individually controls the circulation fan 5, the heating unit 7, and the rotary damper 6 in accordance with an operation command input from the remote controller, thereby drying the bathroom. Let the machine 91 perform ventilation operation, drying operation, and the like.

  As described above, the bathroom dryer 91 according to the first embodiment uses the rotary damper 6 as one-side support by the damper rotating shaft 23 provided at the base end portion, and reduces the rotation angle, thereby circulating the air circulation path 2a. The bathroom dryer 91 can be made compact and lightweight. Moreover, it can position and hold | maintain in the intermediate position of a rotation angle range, and can adjust a circulating air volume and a ventilation air volume.

  Next, a ventilation operation, a drying operation, a cool air operation, a wind drying operation, and a heating operation of the bathroom dryer 91 according to the first embodiment will be described with reference to FIGS. As shown in FIG. 2, in the ventilation operation, the tip of the rotary damper 6 swings counterclockwise to a position where it contacts the circulation orifice (bottom plate) 17 and is positioned, and the heating unit 7 side (downstream side) of the circulation air path 2 a ) Is closed, and the circulation air passage 2 a is connected to the ventilation air passage 2 b through the ventilation connection port 9.

  The air in the bathroom in which the bathroom dryer 91 is installed flows in the ventilation air passage 2b through the circulation suction port 4, is exhausted to the outside from the exhaust port 21, and the bathroom is ventilated.

  In the drying operation, as shown in FIG. 3, the tip of the rotary damper 6 does not contact the top plate of the housing 16A or the circulation orifice (bottom plate) 17, and the top plate of the housing 16A and the circulation orifice (bottom plate) 17 It is positioned at a position close to the top plate of the housing 16A from the intermediate position. Therefore, air can flow from the ventilation connection port 9 to both the ventilation air passage 2b and the air passage downstream of the circulation air passage 2a where the heating unit 7 is disposed. At the same time, the heating unit 7 is energized.

  In the drying operation, bathroom air blown out from the circulation fan 5 and flowed into the circulation air passage 2a is blown into the bathroom from the circulation outlet 8 through the heating unit 7, and a part thereof is a ventilation connection port 9. Then, the air flows into the ventilation air passage 2b and is exhausted from the exhaust port 21 to the outside. In the drying operation, ventilation can be performed while blowing hot air into the bathroom to dry the bathroom and clothes, and the bathroom dryer 91 can function as a hot air dryer.

  In the cool breeze operation, as shown in FIG. 3, the tip of the rotary damper 6 does not contact the top plate of the housing 16A or the circulation orifice (bottom plate) 17, and the top plate of the housing 16A and the circulation orifice (bottom plate) 17 It is positioned at a position close to the top plate of the housing 16A from the intermediate position. As a result, air can flow from the ventilation connection port 9 to both the ventilation air passage 2b and the downstream air circulation passage 2a where the heating unit 7 is disposed. At the same time, the circulating fan 5 is started to operate, and unlike the drying operation, the heating unit 7 is not energized.

  In the cool wind operation, the bathroom air blown out from the circulation blower 5 and flowed into the circulation wind path 2a is blown into the bathroom from the circulation outlet 8 and partly flows into the ventilation wind path 2b from the ventilation connection port 9. The air is exhausted from the exhaust port 21 to the outside. In cool breeze operation, ventilation is performed while blowing air into the bathroom, and the bathroom can be exhausted.

  In the air drying operation, as shown in FIG. 4, the tip of the rotary damper 6 does not contact the top plate of the housing 16A or the circulation orifice (bottom plate) 17, and the top plate and the circulation orifice (bottom plate) 17 of the housing 16A. Is positioned at a position close to the circulation orifice (bottom plate) 17 from the intermediate position. Therefore, air can flow from the ventilation connection port 9 to both the ventilation air passage 2b and the downstream air circulation passage 2a where the heating unit 7 is disposed. At the same time, the circulating fan 5 is started to operate, and unlike the drying operation, the heating unit 7 is not energized.

  In the wind drying operation, the bathroom air flowing into the circulation air passage 2a from the circulation blower 5 is blown into the bathroom from the circulation outlet 8 through the heating unit 7, and a part of the ventilation air is ventilated from the ventilation connection port 9. It flows into the path 2b and is exhausted from the exhaust port 21 to the outside. In the wind drying operation, unlike the drying operation, the heating unit 7 is not energized, and thus air is blown into the bathroom with the air temperature in the bathroom. While blowing room temperature air into the bathroom, ventilate and dry the bathroom and clothing. Although the drying speed of the wind drying operation is slower than that of the drying operation, the heating unit 7 is not energized, so that the drying in the bathroom can be performed with low power consumption.

  In the heating operation, as shown in FIG. 5, the rotary damper 6 is rotated to a position in contact with the top plate of the housing 16 </ b> A to close the ventilation connection port 9 and only downstream of the circulation air passage 2 a leading to the circulation outlet 8. Air can flow into the. At the same time, the circulation fan 5 is started to operate, and the heating unit 7 is energized.

  In the heating operation, the bathroom air blown from the circulation blower 5 and flows into the circulation air passage 2a is blown into the bathroom through the heating unit 7. The air passing through the heating unit 7 is heated and blown out into the bathroom as warm air so that the bathroom can be heated.

  Next, the flow of the intake air of the bathroom dryer 91 according to the first embodiment will be described. As shown in FIGS. 1 and 8, the design panel 14 is disposed so as to cover the lower surface of the circulation unit 91A with a gap 30 between the ceiling and the lower outer edge of the circulation unit 91A. The air is sucked into the circulation fan 5 and flows into the gap space 33 between the design panel 14 and the circulation orifice (bottom plate) 17 from the gap 30. The bathroom air that has flowed into the gap space 33 is sucked into the circulation blower 5 from the circulation suction port 4 and blown into the circulation air passage 2a. It flows into the downstream and / or the ventilation air passage 2b. The gap 30 is provided over the entire circumference of the design panel 14 and can suck in the air in the bathroom from the entire circumference. Therefore, the back surface of the design panel 14 and the bottom plate 17 can be dried by the flow of wind, and the occurrence of mold on the back surface of the design panel 14 and the bottom plate 17 can be prevented.

  Next, with reference to FIG. 9, the induced flow at the time of drying operation, cool air operation, wind drying operation, and heating operation will be described. The air blown out from the circulation blower 5 increases the speed when passing through the heating unit 7 and is blown into the bathroom through the blowout guide grille 8. The induced flow generated at this time is sucked from the gap 30 and flows into the gap space 33 between the design panel 14 and the circulation orifice (bottom plate) 17, and flows into the air passage of the blowout guide grill 8 from the induced flow opening 31. Then, it is blown into the bathroom together with the air that has passed through the heating unit 7.

  In addition, since the partition plate 32 that separates the gap space 33 into the circulation suction port 4 side and the blowout guide grille 8 side is provided in the circulation orifice (bottom plate) 17, the circulation suction is performed from the induction flow opening 31 of the blowout guide grille 8. Air does not flow to the mouth 4 side, and the induced flow can be efficiently sucked into the blowing guide grill 8. Since the wind flows around the blowout guide grille 8 due to the occurrence of the induced flow, the generation of mold around the blowout guide grille 8 on the back surface of the design panel 14 can be suppressed.

  In addition, since the amount of air blown into the bathroom increases due to the induced flow, the bathroom floor surface temperature distribution during heating operation is improved. In addition, the increase in air volume also improves drying unevenness in the bathroom during drying and wind drying operations. Moreover, since the design panel 14 has the gap | interval 30 over a perimeter between ceilings, the circulation of the air of a ceiling surface is good and the drying property of a ceiling surface is high.

Embodiment 2. FIG.
FIG. 10 is a cross-sectional view showing a second embodiment of the bathroom dryer according to the present invention, and FIG. 11 is a top view of the bathroom dryer according to the second embodiment. As shown in FIG. 10, the bathroom dryer 92 of the second embodiment is different from the bathroom dryer 91 of the first embodiment in that a ventilation unit 92B is used instead of the exhaust duct connecting member 22, and the other room It has a ventilation function. The circulation unit 91A and the ventilation unit 92B are separable. Since the circulation unit 91A and the design panel 14 have been described in the bathroom dryer 91 according to the first embodiment, description thereof will be omitted.

  The ventilation unit 92B has a housing 16B, and a ventilation air passage 2b is formed in the housing 16B. The ventilation air passage 2b is provided with a bathroom inlet 12a downward on the upstream side, an exhaust outlet 13 on the downstream side, and a ventilation blower (sirocco fan) 11 driven by the motor M2 inside. ing. A ventilation orifice 18 provided with a ventilation suction port 10 is disposed on the upstream side of the ventilation blower 11. A space between the bathroom inlet 12 a and the ventilation orifice 18 is a ventilation chamber 12. The ventilation chamber 12 has an inlet port 12b for another room.

  Similarly to the bathroom dryer 91 of the first embodiment, the bathroom dryer 92 of the second embodiment can perform a ventilation operation, a drying operation, a wind drying operation, a heating operation, and a cool air operation. In the ventilation operation, the drying operation, the cool air operation, and the wind drying operation, the circulation air passage 2a is connected to the ventilation air passage 2b, and the ventilation blower 11 is started to operate. As a result, the air in the bathroom in which the bathroom dryer 92 is installed flows through the circulation air inlet 2 through the circulation air passage 2a, is guided to the ventilation connection port 9 by the rotary damper 6, and the air in the ventilation air passage 2b. The air is sucked into the ventilation chamber 12 through the bathroom suction port 12a. Further, air in other rooms other than the bathroom is also sucked into the ventilation chamber 12 from the other room suction port 12b, and the bathroom air and other room air are sucked into the ventilation blower 11 from the ventilation suction port 10 and exhausted from the exhaust port 13. . Thereby, the bathroom and other rooms are ventilated.

  Next, with reference to FIG.10 and FIG.11, the multi-room ventilation function of the bathroom dryer 92 is demonstrated. As shown in FIG. 11, the ventilation air passage 2b is provided with a plurality (three) of other-chamber suction ports 12b. If the exhaust duct from other rooms, such as a washroom and a toilet, is connected to each other room inlet 12b and the ventilation blower 11 is operated, ventilation of another room can be performed. Connection ports that are not used can be closed, and the number of rooms to be ventilated can be arbitrarily selected.

  The exhaust connection port 9 communicates with the bathroom suction port 12a of the ventilation chamber 12 and is disposed below the exhaust port 13 because the circulation blower 5 and the ventilation blower 11 are operated at the same time from the circulation air passage 2a to the ventilation air passage. This is to prevent the air from flowing backward to the other-chamber suction port 12b in the drying operation, the wind drying operation, and the cool air operation for blowing air to 2b. In order to reliably prevent backflow of air to the other chamber suction port 12b, a backflow prevention damper may be provided in the other chamber suction port 12b. Moreover, the air volume control of both the air blowers is performed so that the air intake air volume of the ventilation air blower 11 becomes larger than the air volume sent from the circulation air blower 5 to the air ventilation path 2b.

  The other-room air flowing into the ventilation chamber 12 from the ventilation duct through the other-room suction port 12b passes through the ventilation suction port 10, is sucked into the ventilation blower 11, and is exhausted to the outside. When the bathroom dryer 92 is stopped, as shown in FIG. 5, it is possible to ventilate only the other room by setting the rotary damper 6 to a position where the ventilation connection port 9 is closed.

  As described above, the bathroom dryer according to the present invention is useful as a household or commercial bathroom dryer that performs ventilation, drying, and heating of a bathroom.

2a Circulating air passage 2b Ventilation air passage 4 Circulating suction port 5 Circulating fan 6 Rotating damper 7 Heating part 8 Circulating air outlet (outlet guide grill)
DESCRIPTION OF SYMBOLS 9 Ventilation connection port 10 Ventilation suction port 11 Ventilation blower 12 Ventilation chamber 12a Bathroom suction port 12b Other room suction port 13 Exhaust port 14 Design panel 15 Control part 16A, 16B Housing 17 Circulating orifice (bottom plate)
18 Ventilation orifice 20 Filter 21 Exhaust port 22 Exhaust duct connection member (ventilation unit)
23 Damper Rotating Shaft 24 Fan Gear 25 Small Gear 30 Gap 31 Induction Flow Opening 32 Partition Plate 33 Gap Space M1, M2 Motor 91, 92 Bathroom Dryer 91A Circulation Unit 92B Ventilation Unit

Claims (5)

Formed by a housing and a bottom plate, a circulation suction port and a blowout guide grill are provided downward, a ventilation connection port is provided upward, and a circulation fan, a damper for opening and closing the ventilation connection port, and a heating unit are arranged inside A circulation unit having a circulation air passage and installed on the ceiling of the bathroom;
A ventilation unit having a ventilation channel provided with an exhaust port and connected to the ventilation connection port of the circulation unit;
A design panel arranged so that the outer edge portion covers the lower surface of the circulation unit with a gap between the ceiling and the lower outer edge portion of the circulation unit;
An induction opening that is provided between the downstream end of the circulating air passage in which the heating unit is disposed and the blowing guide grille, and draws ambient air into the blowing grille;
Equipped with a,
A bathroom dryer , wherein a partition plate that separates a space between a bottom plate of the circulation unit and the design panel into the circulation suction port side and the blowout guide grille side is provided on the bottom plate .   2. The blowout guide grill has an air passage area larger than an air passage area at a downstream end where a heating unit of the circulation air passage is disposed, and the air passage area decreases toward the downstream side. As described in the bathroom dryer.   2. The bathroom dryer according to claim 1, wherein the attraction opening is directed in a direction perpendicular to an air blowing direction at a downstream end of the circulation air passage.   The bathroom dryer according to claim 1, wherein the design panel is formed in a flat plate shape.   2. The bathroom according to claim 1, wherein the ventilation air passage of the ventilation unit is provided with a plurality of other-chamber inlets for sucking air from other rooms other than the bathroom, and a ventilation fan is disposed therein. Dryer.

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