JPWO2012127662A1 - Bathroom Dryer - Google Patents

Abstract

Formed by a housing and a bottom plate, a circulation suction port and a circulation outlet are provided downward, a ventilation connection port is provided upward, and a circulation blower, a damper for opening and closing the ventilation connection port, and a heating unit are arranged inside A circulation unit having a circulation air channel, a circulation unit installed on the ceiling of the bathroom, a bathroom suction port provided downward, an exhaust port provided laterally, and a ventilation air channel provided with a ventilation fan inside, A ventilation unit having a width and a depth that are less than or equal to the width and depth of the circulation unit and disposed on the circulation unit.

Description

  The present invention relates to a bathroom dryer for one room that is installed on the ceiling of a bathroom and ventilates, dries, and heats the bathroom, and a bathroom dryer for multiple rooms that can simultaneously ventilate other rooms other than the bathroom. .

  Conventionally, the bathroom dryer has a bathroom dryer for one room that ventilates, dries, and heats the bathroom, and a bathroom dryer for multiple rooms that can also ventilate other rooms other than the bathroom such as a dressing room and toilet. Many proposals have been made regarding ventilation and circulation airways.

  A multi-room bathroom dryer has two functions: the function of ventilating, drying and heating the bathroom, and the 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. About the bathroom dryer for multi-rooms, various proposals are made for the improvement of installation workability and maintainability.

  For example, a bathroom dryer proposed in Patent Document 1 is provided between a circulation unit that circulates heated air in a bathroom, a ventilation unit that ventilates other rooms and exhausts the outside, and the circulation unit and the ventilation unit. It is comprised with the made damper unit. The damper unit has a function of switching or diverting between the circulation air passage and the ventilation air passage. By providing the damper rotation shaft at substantially the center of the damper plate, it is possible to stabilize the intake air volume in the bathroom and other rooms, and to distribute the air volume and adjust the air volume.

  Moreover, the bathroom dryer proposed by patent document 2 can be retrofitted to the existing ventilation fan of a bathroom, or can be attached independently. In this bathroom dryer, a hot air circulation device that sucks in bathroom air and heats it back into the bathroom is composed of a base plate, and the base air plate opens the bathroom opening and the hot air circulation device is in the bathroom. It is fixed so that it is located inside. With this configuration, the installation work can be simplified and the current state can be restored. Moreover, the function of the existing ventilation fan is not obstructed.

  Moreover, the bathroom dryer proposed by patent document 3 has arrange | positioned the circulation unit which circulates, ventilates, and heats bathroom air in the ventilation casing of the ventilation unit which ventilates the air of another room. Since the circulation unit is arranged in the ventilation casing, the installation area of the ceiling can be reduced.

Japanese Patent No. 3860377 Japanese Patent No. 4352440 Japanese Patent No. 4196661

  However, the bathroom dryer described in Patent Document 1 needs to rotate the damper by 90 ° in order to open and close the damper by providing the damper rotation shaft at the approximate center of the damper plate. Therefore, a space for rotating the damper is required on both sides of the air passage, and when a large area is to be secured in the opening for ventilation, the space required for the rotation of the damper is also increased. Therefore, there is a problem that it is difficult to downsize the bathroom dryer. Furthermore, since it is necessary to arrange the damper on the wall surface of the wind path, a space for rotating the damper is required in both of the two wind paths where the damper is opened and closed. In addition, since the damper unit and the ventilation unit are attached to the side surface of the circulation unit and the circulation unit is disposed in the ceiling opening, there is a problem that the detachability is poor when maintaining the ventilation unit.

  Since the bathroom dryer described in Patent Document 2 is mounted on the ceiling of the bathroom, it is required to reduce its height and installation area. However, since the circulation air passage and the ventilation air passage are separate air passages, and the air passage shielding means is attached to the bathroom side in the ventilation air passage, reducing the height and installation area on the bathroom side Difficult in construction. In addition, the shielding means employs a spring-type shielding means in order to suppress the protruding dimension on the bathroom side and reduce the thickness, and there is a problem that the structure is complicated.

  Moreover, the bathroom dryer described in patent document 3 is the circulation which consists of a ventilation fan for heating and ventilation in a bathroom in the main body case of the ventilation fan for ventilating a bathroom and another room, and a heating part. Since the unit is arranged, it is difficult to secure a sufficient opening area of the air passage connecting the bathroom and the ventilation fan. Since the gap between the unit case of the circulation unit and the main body case of the ventilation blower is used as an air passage connecting the bathroom and the ventilation blower, two dampers are required, resulting in a complicated structure and high cost.

  The present invention has been made in view of the above, and is small, light and easy to install, and the width and depth of the ventilation unit (ventilation air passage) are kept within the width and depth of the circulation unit (circulation air passage). The purpose of the present invention is to obtain a bathroom dryer that improves the detachability and maintainability, and is small in size but has a sufficient opening area of the bathroom exhaust air passage.

  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 inlet and a circulation outlet are provided downward, a ventilation connection port is provided upward, and inside, A circulation blower, a damper that opens and closes the ventilation connection port, and a circulation air passage in which a heating unit is arranged, a circulation unit installed on the ceiling of the bathroom, a bathroom suction port on the downward side, and an exhaust port on the side direction A ventilation unit that is provided and has a ventilation air passage in which a ventilation blower is disposed, and has a width and a depth that are equal to or less than the width and depth of the circulation unit, and is disposed on the circulation unit. It is characterized by.

  The bathroom ventilation fan according to the present invention is small and light, and is easy to install. Although it is small, a sufficient opening area of the bathroom exhaust air passage can be secured.

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 top view of the bathroom dryer 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 sectional view showing Embodiment 2 of the bathroom dryer according to the present invention. FIG. 9 is a cross-sectional view showing the circulation unit of the second embodiment. FIG. 10 is a cross-sectional view showing the ventilation unit of the second embodiment. FIG. 11 is a cross-sectional view showing the bathroom dryer for one room 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 multi-room use, the ventilation blower is operated to exhaust the air from both the bathroom and other rooms 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 multi-room use, the ventilation blower is operated to exhaust the air from both the bathroom and other rooms 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 multi-room use, the ventilation blower is operated to exhaust the air from both the bathroom and other rooms to the outside. Unlike the drying operation, the wind drying operation dries the bathroom by blowing and ventilating without using warm air. The drying time is longer than that in the normal drying operation, but energy is saved.

  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 one room, the ventilation function is stopped during heating, but in the case of multiple rooms, the other room can be ventilated 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 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 bathroom dryer according to the first embodiment. FIG. 7 is a cross-sectional view showing a drive unit of the damper according to the first embodiment.

  As shown in FIG. 1, the bathroom dryer 91 according to the first embodiment includes a circulation air passage 2 a for ventilating, drying, and heating a bathroom, and a bathroom and other rooms in an integrally formed housing 16. And a ventilation air passage 2b for performing ventilation. The circulation air passage 2 a and the ventilation air passage 2 b are partitioned by a partition plate 19.

  The circulation air passage 2a is formed by a housing 16 and a circulation orifice (bottom plate) 17, and a circulation inlet 4 and a circulation outlet 8 for bathroom air are provided downward, and a ventilation connection port 9 is provided on the downstream side, A circulating blower 5 driven by a motor M1 is disposed on the inner upstream side, and a rotary damper 6 and a heating unit 7 are disposed 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 ventilation air passage 2b is formed by the housing 16 and is disposed on the circulation air passage 2a. The bathroom air inlet 12a is provided downward on the upstream side, and the exhaust air outlet 13 is provided laterally on the downstream side. A ventilation blower 11 driven by the motor M2 is disposed. 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. The ventilation air path 2b provided with the ventilation fan 11 is called the ventilation unit 91B.

  The circulation air passage 2 a and the ventilation air passage 2 b are formed in an integral housing 16. Further, the width (dimension in the left-right direction in FIG. 6) and the depth (dimension in the vertical direction in FIG. 6) of the ventilation unit 91B are formed equal to or smaller than the width and depth of the circulation unit 91A.

  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 partition plate 19 is provided with a ventilation connection port 9. By arranging the partition plate 19 in the housing 16, the circulation air passage 2a and the ventilation air passage 2b are partitioned, and the ventilation connection port is connected to the circulation air passage 2a. 9, air flows into the ventilation air passage 2b. The ventilation connection port 9 communicates with the bathroom suction port 12 a and is disposed below the exhaust port 13.

  The circulation air passage 2a is formed by a housing 16, a partition plate 19, 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 circulation air passage 2a when the rotary damper 6 is opened. The housing 16 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 is provided with an insertion port for inserting a holding member for holding the heating unit 7 and the rotary damper 6.

  The ventilation air passage 2b is formed by a housing 16 and a partition plate 19, and has a box shape in which a bathroom suction port 12a and another room suction port 12b are opened in the upstream ventilation chamber 12, and an exhaust port 13 is opened on the downstream side. Is formed. The bathroom air is sucked into the ventilation chamber 12 through the circulation suction port 4, the circulation blower 5, the circulation air passage 2a, the ventilation connection port 9, and the bathroom suction port 12a. Air in other rooms such as a washroom and a toilet is sucked into the ventilation chamber 12 through a ventilation duct (not shown) and the other room inlet 12b. The exhaust port 13 communicates with the outdoors through an exhaust duct. The housing 16 is provided with a shaft through hole (not shown) for passing the rotation shaft of the drive motor M2.

  The circulation orifice (bottom plate) 17 is disposed on the bathroom side of the housing 16 and partitions the circulation air passage 2a from the bathroom. In the circulation orifice (bottom plate) 17, a circulation suction port 4 for sucking in air in the bathroom is opened downward.

  The ventilation orifice 18 is disposed in the ventilation air passage 2b, and is provided with a ventilation suction port 10 for sucking air in the ventilation chamber 12 into which air is sucked from the bathroom suction port 12a and the other-room suction port 12b.

  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 divided by the rotary damper 6 into a circulation air passage 2 a that flows from the heating unit 7 to the circulation air outlet 8 and a ventilation air passage 2 b that passes through the ventilation connection port 9. The motor M1 is installed on the upper side of the circulation air passage 2a.

  The ventilation blower 11 is a single-suction sirocco fan blower, and is disposed in the ventilation air passage 2b so as to face the ventilation suction port 10. The ventilation blower 11 sucks bathroom air through the ventilation connection port 9, the bathroom suction port 12 a, the ventilation chamber 12 and the ventilation suction port 10, and other rooms other than the bathroom through the other room suction port 12 b, the ventilation chamber 12 and the ventilation suction port 10. The air is sucked and exhausted from the exhaust port 13. The motor M2 is installed on the upper side of the ventilation air passage 2b.

  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 flow path around the heat generating element or the heat dissipating fins, An electric heater configured to radiate heat through the flow path, and a heating element in which an electric insulator and a heat conductor are disposed around the electric heater are housed in a metal pipe.

  The heating unit 7 is disposed downstream 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.

  The circulation outlet 8 has the slats arranged in parallel, and can direct the blown 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 rotary damper 6 contacts the partition plate 19 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 the downstream of the circulation air passage 2a. The side is closed and can be rotated to a position where the upstream side of the circulation air passage 2a communicates with the ventilating 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 16 so as to cover the exposed portion of the housing 16 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 outer peripheral upward side wall of the design panel 14, and sucks bathroom air from the gap over the entire circumference of the design panel 14.

  The control unit 15 includes a storage element in which a predetermined control program is stored, and individually controls the circulation fan 5, the ventilation fan 11, the heating unit 7, and the rotary damper 6 according to an operation command input from the remote controller. Then, let the bathroom dryer 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.

  Further, the width and depth of the ventilation unit 91B are set to be equal to or smaller than the width and depth of the circulation unit 92A, the ventilation unit 91B is disposed on the circulation unit 91A, the bathroom ventilation uses the circulation air passage 2a, and the ventilation air passage is provided by the rotary damper. By connecting to 2b, it can be set as the ventilation air path 2b which has sufficient opening area, and also the bathroom dryer 91 can be compactized. In addition, the bathroom dryer 91 can be easily attached to and detached from the bathroom ceiling, and the installation workability and maintainability are good.

  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 passage 2 a is positioned. ) 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 circulation air passage 2a is connected to the ventilation air passage 2b, and the operation of the ventilation fan 11 is started. As a result, the air in the bathroom in which the bathroom dryer 91 is installed flows through the circulation air inlet 4 through the circulation air passage 2a, is guided to the ventilation connection port 9 by the rotary damper 6, and 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.

  In the drying operation, as shown in FIG. 3, the tip of the rotary damper 6 is not in contact with the partition plate 19 or the circulation orifice (bottom plate) 17, and is partitioned from an intermediate position between the partition plate 19 and the circulation orifice (bottom plate) 17. It is positioned at a position close to the plate 19 side. 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 circulation fan 5 and the ventilation fan 11 are started to operate, and 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. And it flows into the ventilation chamber 12 through the bathroom suction port 12a, mixes with the air sucked from the other-room suction port 12b, is sucked into the ventilation blower 11, and is exhausted to the outside through the exhaust port 13. 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 is not in contact with the partition plate 19 or the circulation orifice (bottom plate) 17, and is partitioned from an intermediate position between the partition plate 19 and the circulation orifice (bottom plate) 17. It is positioned at a position close to the plate 19 side. 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 circulation fan 5 and the ventilation fan 11 are started to operate, and unlike the drying operation, the heating unit 7 is not energized.

  In the cool wind 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 and partly passes through the ventilation connection port 9 and the bathroom suction port 12a. The air flows into the ventilation chamber 12 and is mixed with the air sucked from the other-room suction port 12b, and is sucked into the ventilation blower 11 and exhausted to the outside through the exhaust port 13. 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 come into contact with the partition plate 19 or the circulation orifice (bottom plate) 17, but from an intermediate position between the partition plate 19 and the circulation orifice (bottom plate) 17. It is positioned at a position close to the circulation orifice (bottom plate) 17 side. 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 circulation fan 5 and the ventilation fan 11 are started to operate, and unlike the drying operation, the heating unit 7 is not energized.

  In the wind drying operation, the bathroom air that has flowed into the circulation air passage 2a from the circulation fan 5 is blown into the bathroom from the circulation outlet 8 through the heating unit 7, and a part of the ventilation connection port 9 and the bathroom suction. The air flows into the ventilation chamber 12 through the port 12a, is mixed with the air sucked from the other-room suction port 12b, is sucked into the ventilation blower 11, and is exhausted to the outside through the exhaust port 13. 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.

  In the heating operation, as shown in FIG. 5, the rotary damper 6 is rotated to a position in contact with the partition plate 19 to close the ventilation connection port 9, and the air is supplied only to the downstream side of the circulation air passage 2 a leading to the circulation outlet 8. Can flow in. 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, with reference to FIG.1 and FIG.6, the multi-room ventilation function of the bathroom dryer 91 is demonstrated. As shown in FIG. 6, the ventilation air passage 2b is provided with a plurality (three) of other-chamber suction ports 12b. If the exhaust duct from the other room is connected to each other room suction port 12b and the ventilation blower 11 is operated, the other room can be ventilated. 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 91 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.

Embodiment 2. FIG.
8 is a cross-sectional view showing a second embodiment of the bathroom dryer according to the present invention, FIG. 9 is a cross-sectional view showing the circulation unit of the second embodiment, and FIG. 10 is a cross-sectional view of the second embodiment. FIG. 11 is a cross-sectional view showing a ventilation unit, and FIG. 11 is a cross-sectional view showing a one-room bathroom dryer according to a second embodiment.

  As shown in FIG. 8, the bathroom dryer 92 of the second embodiment is different from the bathroom dryer 91 of the first embodiment in that the circulation unit 92A and the ventilation unit 92B are separate units. The circulation air passage 2a and the ventilation air passage 2b are formed in separate housings 16A and 16B, respectively. The circulation unit 92A and the ventilation unit 92B are separable, the partition plate 19 of the bathroom dryer 91 of Embodiment 1 is abolished, and instead, the top plate of the housing 16A of the circulation unit 92A is extended.

  The circulation unit 92 </ b> A includes a room air circulation inlet 4, a circulation fan 5, a motor M <b> 1 that drives the circulation fan 5, a rotary damper 6, a heating unit 7, a circulation outlet 8 to the room, and a ventilation connection port 9. . The circulation unit 92 </ b> A partitions the circulation air passage 2 a and the bathroom by a circulation orifice (bottom plate) 17, and a circulation suction port 4 is provided in the circulation orifice (bottom plate) 17. The design panel 14 is attached to the bathroom side of the circulation unit 92A. On the top plate of the housing 16A of the circulation unit 92A, a control unit 15 and a power supply connection unit (not shown) are arranged, and a remote controller (not shown) is installed outside the bathroom.

  The ventilation unit 92B (see FIGS. 8 and 10) includes a ventilation chamber 12, a bathroom inlet 12a, another room inlet 12b, a ventilation orifice 18, a ventilation inlet 10, a ventilation fan 11, a motor M2 for driving the ventilation fan 11, and An exhaust port 13 is provided. The ventilation suction port 10 is provided in the ventilation orifice 18.

  The bathroom dryer 92 of Embodiment 2 shown in FIG. 8 is one in which a ventilation unit 92B is connected to the upper side of the ventilation connection port 9 of the circulation unit 92A. Since each part (part) of the bathroom dryer 92 is almost the same as the bathroom dryer 91 of the first embodiment shown in FIG. 1, the same reference numerals are given and the description thereof is omitted.

  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. About each driving | operation, since it is the same as the bathroom dryer 91 of Embodiment 1, description is abbreviate | omitted.

  Next, a bathroom dryer 93 obtained by modifying the bathroom dryer 92 according to Embodiment 2 shown in FIG. 8 into a bathroom dryer for one room will be described with reference to FIG. The bathroom dryer 93 is obtained by removing the ventilation unit 92B from the bathroom dryer 92 shown in FIG. 8, and attaching the exhaust duct connecting member 22 to the upper side of the ventilation connection port 9 of the circulation unit 92A shown in FIG.

  The exhaust duct connecting member 22 is formed with an exhaust air passage so that the exhaust direction is lateral (the right direction in FIG. 11), and the exhaust port 21 is opened sideways. If an exhaust duct is connected to the exhaust port 21, the bathroom can be ventilated.

  As for the operation of the bathroom dryer 93, in the operation of the bathroom dryer 91 shown in FIG. 1, the bathroom air exhausted from the ventilation connection port 9 does not pass through the ventilation duct 2b but passes through the exhaust duct connection member 22 to the outside. The description is omitted because it is the same except that the air is exhausted.

  The bathroom dryer 92 according to the second embodiment can separate the circulation unit 92A and the ventilation unit 92B from each other, and is configured by the circulation unit 92A and the exhaust duct connecting member 22 for one room, and the circulation unit 92A for the multi-room use. And the ventilation unit 92B can be manufactured by combining one room use and multiple room use, and the circulation unit 92A can be standardized.

  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 air inlet 5 Circulating air blower 6 Rotating damper 7 Heating part 8 Circulating air outlet 9 Ventilation connection port 10 Ventilation air inlet 11 Ventilation air blower 12 Ventilation chamber 12a Bathroom air inlet 12b Other room air inlet 13 Exhaust air Port 14 Design panel 15 Control unit 16 Housing 17 Circulating orifice (bottom plate)
18 Ventilation orifice 19 Partition plate 20 Filter 21 Exhaust port 22 Exhaust duct connecting member 23 Damper rotating shaft 24 Fan gear 25 Small gear 91, 92, 93 Bathroom dryer 91A, 92A Circulation unit 91B, 92B Ventilation unit

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 inlet and a circulation outlet are provided downward, a ventilation connection port is provided upward, and inside, A circulation blower, a damper that opens and closes the ventilation connection port, and a circulation air passage in which a heating unit is arranged, a circulation unit installed on the ceiling of the bathroom, a bathroom suction port on the downward side, and an exhaust port on the side direction A ventilation unit that is provided and has a ventilation air passage in which a ventilation blower is disposed, a width and a depth are formed below the width and depth of the circulation unit, and the ventilation unit is disposed on the circulation unit . The heating unit is arranged on the downstream side of the damper .

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 inlet and a circulation outlet are provided downward, a ventilation connection port is provided upward, and inside, A circulation fan, a circulation air passage in which a damper for opening and closing the ventilation connection port and a heating unit are arranged, and a circulation unit installed on the ceiling of the bathroom, and downwardly connected to the circulation air passage through the ventilation connection port A bathroom air inlet is provided, an air outlet is provided horizontally, a ventilation air passage is provided with a ventilation fan inside, and a width and a depth are formed below the width and depth of the circulation unit. And a ventilation unit arranged above, wherein the heating unit is arranged on the downstream side of the damper.

Claims (7)

Formed by a housing and a bottom plate, a circulation suction port and a circulation outlet are provided downward, a ventilation connection port is provided upward, and a circulation blower, 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;
The bathroom suction port is provided downward, the exhaust port is provided laterally, and the ventilation fan is provided with a ventilation fan inside.The width and depth are less than the width and depth of the circulation unit, and the circulation A ventilation unit located above the unit;
A bathroom dryer characterized by comprising:   The bathroom dryer according to claim 1, wherein the circulation unit and the ventilation unit have an integral housing.   The bathroom dryer according to claim 1, wherein each of the circulation unit and the ventilation unit has a separate housing.   The damper is disposed below the ventilation connection port between the circulation fan and the heating unit in the circulation air passage, and the ventilation air passage has air from other rooms other than the bathroom in addition to the bathroom suction port. The bathroom dryer according to claim 1, further comprising a suction port for other chambers, wherein the ventilation connection port is disposed below the exhaust port.   The damper is a rotary damper that rotates around a damper rotation axis provided at a base end portion, and the rotary damper is driven by a stepping motor to close the ventilation connection port and downstream of the circulation air passage. And the position where the upstream side of the circulation air passage is communicated with the ventilation connection port, and the position where the upstream side of the circulation air passage is communicated with both the downstream side and the ventilation connection port. The bathroom dryer according to claim 1.   The bathroom dryer according to claim 1, wherein the heating unit includes a heater having a self-temperature control function. Formed by a housing and a bottom plate, a circulation suction port and a circulation outlet are provided downward, a ventilation connection port is provided upward, and a circulation blower, 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;
An exhaust duct connecting member disposed on the ventilation connection port of the circulation unit and provided with an exhaust port in a lateral direction;
A bathroom dryer characterized by comprising:

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