JP2014001879A - Bathroom dryer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bathroom dryer in which, even when switching between a ventilating operation for another room and a simultaneous ventilating operation for a bathroom and the other room, a ventilation fan can be made compact without reducing the volume of ventilation air in the other room because of the only one ventilation fan.SOLUTION: The bathroom dryer comprises a circulation unit 1B for ventilating, drying and heating the bathroom and a ventilation unit 1A for ventilating any other room than the bathroom. The circulation unit includes: an inlet 11; a circulation fan 12; heating means 15; an outlet 16; an exhaust port 19; a circulation air passage communicating the inlet and the outlet; an exhaust air passage 18 communicating the inlet and the exhaust port via a ventilation connecting port 17; and air passage switching means 14 which opens/closes the ventilation connecting port 17 and is capable of switching an air passage to one of or both the ventilation air passage and the exhaust air passage. The ventilation unit includes a ventilation air inlet 3, a ventilation air exhaust port 8 communicating to the exhaust port 19, and a ventilation fan 5. The circulation unit makes confluent and discharges air blown out of the ventilation air exhaust port of the ventilation unit and air blown out of the exhaust port of the circulation unit in such a manner as to generate an induction flow.

Description

  The present invention relates to a bathroom dryer for use in another room that is installed on a ceiling surface of a bathroom and can ventilate / dry / heat the bathroom and ventilate other rooms other than the bathroom.

  Many proposals have been made on bathroom dryers for use in other rooms that have the function of ventilating, drying and heating the bathroom and the function of ventilating other rooms other than the bathroom such as dressing rooms and toilets. . The bathroom dryer for use in other rooms requires two air paths, the air path for ventilating, drying and heating the interior of the bathroom and the air path for ventilating the other rooms, and at least 2 are required to operate each function independently. Two airway components are required. In addition, the bathroom dryer for other rooms requires a configuration of an other room air passage communicating with the other rooms, and is difficult to be made compact, as compared with a bathroom dryer for only one bathroom. For this reason, many bathroom dryers for use in other rooms have been proposed for improving the air passage configuration in other rooms.

In a conventional bathroom dryer for use in other rooms, for example, in order to ventilate a bathroom, a dressing room, and a toilet, it is necessary to provide a number of ventilation fans corresponding to each room corresponding to each intake port. For this reason, there is a problem that a space occupied by parts is required, the product size is increased, and a mounting opening is increased when the bathroom dryer is installed.
Thus, for example, in the bathroom dryer having the other room ventilation function described in Patent Document 1, the bathroom and the other room are ventilated by a single fan, the first intake port communicating with the toilet space, and the wash space A second air inlet that communicates with the dressing room, a third air inlet that communicates with the bathroom space, an air outlet that communicates with the outdoors, and an opening / closing means that closes the second and third air inlets. With such an air passage configuration, the bathroom dryer of Patent Document 1 attempts to make the bathroom dryer more compact by adjusting the angle of one ventilation fan and the opening / closing means.

Japanese Patent No. 4432101

  However, in the bathroom dryer described in Patent Document 1, since the bathroom and the other room are ventilated by only one ventilation fan, the bathroom is ventilated while the other room is ventilated. If the angle of the opening / closing means is changed, the flow resistance between the bathroom and the other room changes, and the air volume distribution changes, so that the ventilation air volume of the other room such as a dressing room or toilet decreases. Therefore, in order to secure the ventilation air volume that ventilates the other rooms, it is necessary to blow a large air volume with one ventilation fan. However, in order to blow a large air volume, it is necessary to enlarge the ventilation fan or increase the rotation speed of the ventilation fan. When the ventilation fan is enlarged, there is a problem that the product size is increased, and when the rotation speed of the ventilation fan is increased, there is a problem that noise is increased.

  The present invention has been made in order to solve the above-described problems. Even when switching between the ventilation operation of only the other room and the simultaneous ventilation operation of the bathroom and the other room, the ventilation air volume of the other room can be reduced with one ventilation fan. It aims at providing the bathroom dryer which can make a ventilation fan compact without reducing.

  The bathroom dryer according to the present invention is a bathroom dryer including a circulation unit having a function of performing ventilation, drying, and heating of a bathroom, and a ventilation unit having a function of performing ventilation of other rooms other than the bathroom. The circulation unit includes a suction port and a discharge port communicating with the bathroom space, an exhaust port communicating with the outdoors, a circulation air passage connecting the suction port and the discharge port, and a suction port and an exhaust port via the ventilation connection port. The exhaust air passage that communicates with the air, the blower that sucks air from the suction port and blows air to the circulation air passage or the exhaust air passage, the heating means that warms the air circulating through the circulation air passage, and the ventilation connection port, A ventilation path switching means capable of switching to one or both of a circulation wind path and an exhaust air path, and the ventilation unit communicates with a ventilation suction port that communicates with the space of the other room and an exhaust port. Ventilating exhaust vent and venting vent The circulation unit includes a blower that sucks air and blows air to the ventilation exhaust port, and the circulation unit combines the air blown from the ventilation exhaust port of the ventilation unit and the air blown from the exhaust port of the circulation unit so that an induced flow is generated. Are to be discharged.

  In the bathroom dryer according to the present invention, the ventilation of the bathroom is performed by the circulation unit, and the ventilation of the other rooms is performed by the ventilation unit. In addition, the air blown out from the ventilation exhaust port of the ventilation unit and the air blown out from the exhaust port of the circulation unit are combined and discharged so that an induced flow is generated. Even if switching to simultaneous ventilation operation, the bathroom and other rooms can be ventilated simultaneously without reducing the ventilation air volume in the other rooms. Further, the ventilation of the bathroom is performed by the circulation unit, and the ventilation of the other rooms is performed by the ventilation unit, so that the processing air volume of the ventilation unit can reduce the bathroom ventilation. Therefore, the ventilation fan can be made compact.

It is a conceptual diagram which shows the usage type of the bathroom dryer which concerns on Embodiment 1 of this invention. 1 is a schematic diagram of a bathroom dryer according to Embodiment 1. FIG. It is the schematic which shows what comprised the exhaust port and ventilation exhaust port of the circulation unit of the bathroom dryer which concerns on Embodiment 1 in the double pipe structure. It is a perspective view which shows an example of a blowing guide grill. It is the schematic which shows the cross section of the drive part of an air path switching means. It is a schematic sectional drawing when the bathroom dryer is performing ventilation operation of other rooms. It is a schematic sectional view when the bathroom dryer performs weak ventilation of the bathroom and ventilation operation of other rooms. It is schematic sectional drawing when the bathroom dryer is performing ventilation operation of both the bathroom and other rooms. It is schematic sectional drawing when the bathroom dryer is performing only the bathroom ventilation operation. It is schematic sectional drawing when the bathroom dryer is performing the drying operation of a bathroom. It is a schematic sectional view when the bathroom dryer is heating the bathroom. It is a schematic sectional drawing of the bathroom dryer which concerns on Embodiment 2 of this invention. It is a schematic diagram of an example of piping installation in the bathroom dryer which concerns on Embodiment 2. FIG. It is a general | schematic fragmentary sectional view which shows the other example of the double pipe structure of an exhaust port and a ventilation exhaust port in the bathroom dryer which concerns on Embodiment 3 of this invention.

  Hereinafter, embodiments of a bathroom dryer according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to the embodiments described below.

Embodiment 1 FIG.
FIG. 1 is a conceptual diagram illustrating a usage pattern of a bathroom dryer 1 according to Embodiment 1 of the present invention, and is a schematic diagram illustrating an example of a bathroom dryer 1 and an air supply duct, an exhaust duct, and the like connected thereto. It is. Moreover, the solid line arrows shown in the drawings after FIG. 1 indicate the air flow direction.

  The bathroom dryer 1 is attached to the ceiling of the bathroom BR. The bathroom dryer 1 can suck in air from the bathroom BR and blow it out through the heating means (not shown in FIG. 1). The bathroom dryer 1 can also suck in the air in the bathroom BR and exhaust it through the exhaust duct D1 to the outside. Moreover, the bathroom dryer 1 can also suck in the air in the dressing room DR through the suction port DR1 provided on the ceiling of the dressing room DR and the duct DR2 connected to the suction port DR1, and exhaust the air through the exhaust duct D1 to the outside. . Furthermore, the bathroom dryer 1 sucks the air in the interstitial space (space between each floor) KS in a multi-story structure building through the duct DKS connected to the interstitial space KS, and exhausts it to the outside through the exhaust duct D1. You can also.

  FIG. 2 is a schematic diagram of the bathroom dryer 1 according to the first embodiment. FIG. 2A is a cross-sectional view schematically showing an example of the bathroom dryer 1, and FIG. It is the external view which looked at the bathroom dryer 1 shown as sectional drawing to a) from the upper surface side.

  As shown in FIG. 2, the bathroom dryer 1 includes a ventilation unit 1A having a function of ventilating other rooms other than the bathroom, and a circulation unit 1B having a function of ventilating / drying / heating the bathroom. Yes.

  The ventilation unit 1A includes at least one ventilation suction port 3, a ventilation orifice plate 4, a blower (hereinafter referred to as a ventilation fan) 5, a ventilation fan motor 6, a backflow prevention means 7, and a ventilation exhaust port 8 in the ventilation chamber 2. ing.

  The circulation unit 1B includes an outer casing 9, a circulation orifice plate 10, a suction port 11, a blower (hereinafter referred to as a circulation fan) 12, a circulation fan motor 13, an air path switching unit 14, a heating unit 15, a blowout port 16, and a ventilation connection. A port 17, an exhaust air passage 18, and an exhaust port 19 are provided.

  A filter 20 for removing dust in the air is detachably disposed upstream of the suction port 11 provided in the circulation orifice plate 10. A design panel 21 is provided on the exposed surface side of the bathroom dryer 1 in the bathroom. The outer surface of the bathroom dryer 1 is provided with a control unit (circuit unit) 23 and a power source connection unit (not shown). A remote controller (not shown) serving as an operation unit is connected to the control unit 23 via a communication line (not shown), and an operation request from the remote controller is transmitted to the control unit 23 by communication. Note that the communication method of the remote controller may be either wired or wireless, and may allow an external operation via a mobile device such as a mobile phone. Hereinafter, each of the above components will be described in more detail.

(Ventilation unit 1A)
The configuration of the ventilation unit 1A will be described. The ventilation chamber 2 (see FIG. 2) includes a ventilation suction port 3 for sucking air from other rooms other than the bathroom, a ventilation orifice plate 4 provided with an orifice 4a facing the ventilation suction port 3, and ventilation for the other rooms. A ventilation fan 5 to be performed, a ventilation fan motor 6 for driving the ventilation fan 5, a backflow prevention means 7 including an opening / closing means for preventing a backflow of bathroom air to another room, and a ventilation exhaust port 8 are provided.

  At least one (three in this example) opening for ventilating the other room is provided in the outer wall of the ventilation chamber 2, and a duct DR2 (see FIG. 1) for sucking air from the other room is connected. A ventilation inlet 3 is provided for this purpose. A ventilation orifice plate 4 for the ventilation fan 5 is disposed inside the exhaust chamber 2, and the air in the other room passes through the ventilation inlet plate 3 through the orifice 4 a of the ventilation orifice plate 4 and the ventilation fan 5, and is ventilated and exhausted. An exhaust air passage 18 leading to the mouth 8 is formed. Further, the orifice 4 a formed in the ventilation orifice plate 4 is provided so as to face one main ventilation suction port 3. The other two ventilation suction ports 3 that do not face the orifice 4a are ventilation auxiliary suction ports 3A and 3B that communicate with the orifice 4a. As shown in FIG. 1, the air in the other chamber can be transported by connecting the suction port DR1 and the ventilation suction port 3 that open to the other chamber through a duct DR2.

  The ventilation fan 5 is driven by a ventilation fan motor 6. And the air from other rooms, such as a dressing room and a toilet, is sucked in through the ventilation inlet 3 connected to other room space by rotation of the ventilation fan 5. The sucked-in air from the other room passes through the ventilation passage between the ventilation orifice plate 4 in the exhaust chamber 2 and further passes through the exhaust port 19 of the circulation unit 1B through the backflow prevention means 7 and the ventilation exhaust port 8. It is discharged to the outside via.

FIG. 3 is a schematic diagram showing a structure in which the exhaust port 19 and the ventilation exhaust port 8 of the circulation unit 1B of the bathroom dryer 1 according to Embodiment 1 are configured in a double pipe structure.
The air blown from the ventilation unit 1A passes through the ventilation exhaust port 8 and blows out to the exhaust air passage 18 of the circulation unit 1B. The bathroom air that has passed through the ventilation connection port 17 of the circulation unit 1B merges with the air in the other room in the exhaust air passage 18. Moreover, since the exhaust duct D1 is connected to the exhaust port 19, the air that has joined the other room and the bathroom is exhausted to the outside (outdoors) through the exhaust duct D1.

  The exhaust air passage 18 is configured such that the ventilation connection port 17 can be opened and closed by the air passage switching means 14 provided in the circulation unit 1B. The air path switching means 14 has a curved air path switching plate 14a, and the air path switching plate 14a can be rotationally driven (rotation angle adjustment) around the rotation shaft 14b depending on the operation mode. At the position where the air path switching plate 14a contacts the top surface of the circulation unit 1B (the ventilation connection port closed position 25 (see FIG. 2)), the circulation unit 1B is not connected to the circulation air path (not shown in FIG. 2). Configure. This circulation air passage is a path through which the air in the bathroom circulates through the suction port 11, the circulation fan 12, the heating means 15, the outlet 16, and the bathroom by the rotation of the circulation fan 12. The circulation air passage is used for drying in the bathroom (for example, drying laundry) and heating.

  On the other hand, at the position where the air path switching plate 14a of the air path switching means 14 is in contact with the circulation orifice plate 10 of the circulation unit 1B (ventilation connection opening position 26), a ventilation air path of the bathroom is formed, and at the intermediate position, the bathroom It is possible to construct both circulation and ventilation air paths.

By operating the ventilation unit 1A with the air path switching means 14 configured as a ventilation air path, the air passing through the ventilation exhaust port 8 increases in wind speed and generates dynamic pressure, and is blown out to the exhaust air path 18. The static pressure in the path 18 decreases. Since the ventilation connection port 17 is opened by the air path switching means 14, the exhaust air path 18 communicates with the bathroom air. Since the pressure of the bathroom air is atmospheric pressure, a pressure difference is generated between the bathroom air and the ventilation blown out to the exhaust air passage 18, and the bathroom air is attracted to the exhaust air passage 18 and merges with the air in the other room, and the outside ( Exhausted outdoors).
In the present embodiment, a double pipe structure is used, but an induced flow may be generated by a venturi, an orifice, a nozzle structure, or the like.

  The backflow prevention means 7 has a plate-like opening / closing damper 7a. The open / close damper 7a swings about the rotation shaft 7b as the center of rotation, and opens and closes the air path. As the swinging method, for example, the opening / closing damper 7a can be swung by wind pressure, or the opening / closing damper 7a can be driven to swing by an electric drive motor (not shown).

  In the wind pressure swinging means, when wind flows in the reverse direction from the ventilation exhaust port 8, the opening / closing damper 7a swings in the closing direction by the wind pressure, and the ventilation exhaust port 8 is closed to prevent backflow, thereby ventilating exhaust. When wind flows in the blowing direction through the port 8, the ventilation exhaust port 8 can be opened to allow the wind to flow in the exhaust direction. In the figure, reference numeral 27 denotes a stopper for the open / close damper 7a.

  When the wind pressure swing is used, the processing of the drive motor and the lead wire is not required as compared with the electric drive type, so that the structure can be simplified and the backflow can be prevented at a low cost.

  When the backflow prevention means 7 is driven to swing using a drive motor (not shown), the ventilation exhaust port 8 can be opened and closed by swinging the opening / closing damper 7a to prevent backflow. it can. Furthermore, when the drive motor is used to swing and drive, the opening degree of the open / close damper 7a can be arbitrarily set, so that the ventilation air volume of the air in the other chamber can be arbitrarily adjusted by the opening degree. The drive motor is preferably a stepping motor or a geared motor.

(Circulation unit 1B)
Next, the configuration of the circulation unit 1B will be described. The circulation unit 1 </ b> B (see FIG. 2) is formed with an outer casing 9 and a circulation orifice plate 10. The outline of the circulation unit 1B has a box shape, and the suction port 11 and the internal ventilation connection port 17 communicate with the exhaust air passage 18 as a series of air passages via the air passage switching means 14. On the upper surface of the outer casing 9 of the circulation unit 1B, a circulation fan motor 13 of the circulation fan 12 and a motor insertion port (not shown) for inserting the rotation shaft thereof are formed. In addition, a holding member insertion port (not shown) for fixing and holding the heating unit 15 and the air path switching unit 14 is provided on a side surface of the circulation unit 1B on the outlet port side of the outer casing 9.

  The circulation orifice plate 10 (see FIG. 2) is disposed on the open end side (inside the room) of the circulation unit 1B, and divides the circulation air path of the circulation unit 1B from the bathroom side. A suction port 11 for sucking the air inside is opened.

  The circulation fan 12 (see FIG. 2) is a single suction sirocco fan blower, and the circulation fan 12 is arranged in the circulation unit 1B so as to be connected to the suction port 11. The air sent from the circulation fan 12 branches or diverts into a circulation air passage that flows from the heating means 15 to the outlet 16 through the air passage switching means 14 and an exhaust air passage 18 that flows through the ventilation connection port 17. To do. The circulation fan motor 13 is disposed on the upper part of the circulation unit 1B.

  The heating means 15 (see FIG. 2), for example, arranges a plurality of heat generating elements at intervals or provides a plurality of heat dissipating fins around the heat generating elements, thereby An electric heater that is configured to form a flow path and to dissipate heat by passing air through the flow path, and a heating element in which an electric insulator and a heat conductor are arranged in a metal pipe. It is configured using a heater or the like. This heating means 15 is arranged leeward of the circulation fan 12 and leeward of the air path switching means 14. From the viewpoint of suppressing overheating of the heating means 15, it is preferable to use a PTC (Positive Temperature Coefficient) heater as the heating section. The PTC heater uses a PTC element whose resistance increases abruptly at a certain temperature (Curie temperature) as a heating element, so it has a self-temperature control function and is excellent in safety and temperature control. Is suitable for cost reduction.

  FIG. 4 is a perspective view showing an example of the blowing guide grill 16a. The blowout port 16 (see FIG. 2) is a blowout air passage formed so as to narrow down (contract) the rectangular openings on both sides using, for example, a blowout guide grill 16a as shown in FIG. That is, the side plate 16b on the long side of the grill frame is formed in a curved shape, so that the blowout air passage of the blowout port 16 is narrowed. The air outlet 16 is connected to the air passage where the heating means 15 is arranged, but the air passage width before being throttled is made larger than the air passage width where the heating means 15 is arranged, thereby attracting the connection portion. A constricted opening for flow is provided. Furthermore, the blower outlet 16 has the blade plate 16c arranged in parallel, and can give a fixed wind direction. It is also possible to adjust the wind direction by providing a rotating shaft on the vane plate 16c and adjusting the opening degree by electric drive means.

  The air path switching means 14 (see FIG. 2) is a plate-shaped damper (air path switching board 14a) having a curved surface and a flat surface. FIG. 5 is a schematic view showing a cross section of a driving portion of the air path switching means 14. The air path switching means 14 rotates around the damper rotation shaft 14b as a rotation center. A fan gear 14c and a small gear 14d that meshes with the fan gear 14c are fitted to the rotary shaft 14b of the air path switching means 14 and the rotary shaft provided on the side surface of the damper, respectively, and the fan gear 14c is rotated by the small gear 14d. Thus, the air path switching means 14 can be swung with the rotation shaft 14b as the center of rotation. The air path switching means 14 is driven by driving a small gear 14d that meshes with the fan-shaped gear 14c using a reduction gear. The rotational axis of the damper is 14b, but the rotational axis of the drive motor is the central axis of the small gear 14d. By rotating the small gear 14d by driving means such as a stepping motor, for example, the air path switching means 14 is rotated via the fan-shaped gear 14c to form an air path. The air passage switching means 14 can rotate clockwise to a position where it contacts the top surface of the circulation unit 1B (ventilation connection port closed position 25 (see FIG. 2)), and contacts the circulation orifice plate 10 counterclockwise. It can be rotated to a position (ventilation connection opening position 26), and control is performed by rotating the air path switching means 14 to a rotation angle necessary to form the air path.

  The design panel 21 is arranged in the circulation unit 1B so as to cover the exposed surface of the circulation unit 1B in the bathroom. The design panel 21 is a flat plane, and is arranged with a gap between the ceiling surface and the outer peripheral side surface of the design panel 21, thereby sucking in bathroom air from the gap openings 22 around the entire design panel.

  The control unit 23 has a storage element (not shown) in which a predetermined control program is stored, and in response to a command input from a remote controller (not shown), the circulation fan 12, the heating means 15, and the air path switching The operation of the means 14 is separately controlled to cause the bathroom dryer 1 to perform a ventilation operation, a drying operation, or the like.

Hereinafter, ventilation operation, drying operation, and heating operation in the bathroom dryer 1 will be described with reference to FIGS. For ventilation operation,
・ Operation mode 1 to stop the bathroom operation and ventilate only other rooms
・ Operation mode 2 to ventilate other rooms while weakly ventilating the bathroom
・ Operation mode 3 to ventilate both bathroom and other rooms
・ Operation mode 4 to ventilate the bathroom and stop other rooms
There are four operation modes.

FIG. 6 is a schematic cross-sectional view when the bathroom dryer 1 is performing ventilation operation in another room, and is a plan cross-sectional view showing an operation mode 1 in which ventilation in the other room is performed with the circulation fan 12 stopped (a). ) And a side sectional view (b).
One end (tip) of the air path switching means 14 rotates clockwise to a position 25 where it contacts the top surface of the circulation unit 1B, and drives the air path switching means 14 to the position shown in FIG. 6B. Then, the ventilation connection port 17 is closed by positioning, and the bathroom air is blocked from flowing into the exhaust air passage 18 through the ventilation connection port 17. Then, ventilation of the other room is performed by driving the ventilation fan 5 of the ventilation unit 1B to suck the air of the other room from the ventilation suction port and exhaust the air from the ventilation exhaust port 8 and the exhaust port 19 of the circulation unit 1A to the outside. In this way, ventilation is performed.

FIG. 7 is a schematic cross-sectional view when the bathroom dryer 1 performs weak ventilation of the bathroom and ventilation operation of another room, and shows an operation mode 2 in which ventilation of the other room is performed while weakly ventilating the bathroom. It is sectional drawing.
By rotating the tip of the air path switching means 14 counterclockwise to a position 26 where it contacts the circulation orifice plate 10 of the circulation unit 1B, and driving and positioning the air path switching means 14 at the position shown in FIG. The air path heating means 15 is blocked and the ventilation connection port 17 is opened. The ventilation fan 5 is driven in a state in which the circulation fan 12 is stopped, and a static pressure drop generated in the exhaust air passage 18 causes a pressure difference with the bathroom, and the ventilation of the bathroom is discharged to the outside by an induced flow. Simultaneously ventilate other rooms.

FIG. 8 is a schematic cross-sectional view when the bathroom dryer 1 performs ventilation operation in both the bathroom and the other room, and is a cross-sectional view showing an operation mode 3 in which both the bathroom and the other room are ventilated. .
By driving the circulation fan 12 in the state described with reference to FIG. 7, ventilation in the bathroom is performed by the circulation fan 12, and ventilation in the other rooms is performed by the ventilation fan 5 and is discharged to the outside.

  As described above, ventilation in the other room is performed by the ventilation unit 1A, and ventilation in the bathroom is performed from the operation mode 1 by switching the circulation unit 1B to the ventilation air path (exhaust air path 18) by the air path switching means 14. Even if it switches to mode 3, since the ventilation airflow of another room is operating with the ventilation fan 5, the airflow of the other room does not change. Further, it is possible to perform weak ventilation of the bathroom with the circulation fan 12 stopped without changing the ventilation amount of the other room by the operation mode 2 (ventilation mode) by the induced flow. In addition, since the bathroom air is discharged by the induced flow due to the pressure difference, the odor of the other room does not flow back into the bathroom.

FIG. 9 is a schematic cross-sectional view when the bathroom dryer 1 performs a ventilation operation only in the bathroom, and is a cross-sectional view showing an operation mode 4 in which the bathroom is ventilated and the ventilation of other rooms is stopped.
By stopping the ventilation fan 5 in the state described with reference to FIG. 7, the bathroom is ventilated while the ventilation of the other rooms is stopped, and the air in the bathroom is discharged to the outside. In addition, since the ventilation exhaust port 8 is closed by the wind pressure or electric drive by the backflow prevention means 7, the air in the bathroom (for example, moist air) does not flow back to other rooms.

  As described above, the ventilation of the bathroom is performed by the circulation fan 12 and the ventilation fan 5 is stopped, so that the noise during the ventilation operation of the bathroom can be reduced.

FIG. 10 is a schematic cross-sectional view when the bathroom dryer 1 is performing a drying operation of the bathroom, and shows a plan sectional view (a) and side sectional views (b) and (c) of the bathroom dryer 1. ing.
In the operation in which the bathroom ventilates the other room during the drying operation, as shown in FIG. 10 (b), the circulation unit 1B has the tip of the air passage switching means 14 on the top surface of the circulation unit 1B. By positioning the circulating orifice plate 10 at an intermediate position so as not to contact both, air can be introduced into both the ventilation passage 17 and the circulation to the heating means 15. At this time, the circulation fan 12 starts operation, and the heating means 15 is energized. For ventilation in the other room, the air in the other room sucked from the ventilation suction port 3 by the ventilation fan 5 is blown to the ventilation exhaust port 8, mixed with the air in the bathroom through the exhaust port 19 of the circulation unit 1B, and exhausted to the outside. .

  As described above, when the bathroom is dried, ventilation is performed while blowing warm air to dry the bathroom and clothes, and the bathroom dryer 1 is operated as a warm air dryer, and at the same time, ventilation in another room is performed. It can be performed.

  In the operation in which the bathroom stops the ventilation in the other room during the drying operation, the circulation unit 1B has the tip of the air path switching means 14 on the top surface of the circulation unit 1B as shown in FIG. Further, by positioning the circulation orifice plate 10 at an intermediate position so as not to contact both, it becomes possible to allow air to flow into both the ventilation passage 17 and the circulation to the heating means 15. . At this time, the circulation fan 12 starts operation, and the heating means 15 is energized. On the other hand, in the ventilation unit 1A, since the backflow prevention means 7 is provided in the ventilation unit 1A, the ventilation fan 5 can be stopped and the ventilation of the other rooms can be stopped.

  As described above, conventionally, in order to perform the drying operation of the bathroom, it is necessary to operate the ventilation fan 5. However, since the ventilation unit 1A and the circulation unit 1B are joined at the exhaust part, You can dry the bathroom while stopping. Moreover, even if the ventilation fan 5 is stopped, the backflow prevention means 7 is provided, so that damp air in the bathroom can be prevented from flowing back to the other rooms. Moreover, since the ventilation fan 5 is stopped and the bathroom can be dried, noise during the drying operation can be reduced.

FIG. 11 is a schematic cross-sectional view when the bathroom dryer 1 performs a heating operation of the bathroom, and shows a plan cross-sectional view (a) and side cross-sectional views (b) and (c) of the bathroom dryer 1. ing.
In the operation in which the bathroom ventilates the other room during the heating operation, the circulation unit 1B rotates to the position 25 where the air path switching means 14 contacts the top surface of the circulation unit 1B as shown in FIG. Thus, the ventilation connection port 17 is blocked, and air can flow only into the circulation air passage 24 that connects the suction port 11 and the blowout port 16. At this time, the circulation fan 12 starts operation, and the heating means 15 is energized. For ventilation in the other room, the air in the other room sucked from the ventilation suction port 3 by the ventilation fan 5 is blown to the ventilation exhaust port 8, and the air is exhausted to the outside through the exhaust port 19 of the circulation unit 1B.

  As described above, if the heating operation of the bathroom is used, warm air can be blown into the bathroom to heat the bathroom, and at the same time, the ventilation operation of the other room can be performed.

  In the operation in which the bathroom stops the ventilation in the other room during the heating operation, the circulation unit 1B rotates to the position 25 where the air path switching means 14 contacts the top surface of the circulation unit 1B as shown in FIG. By positioning in this manner, the ventilation connection port 17 is closed, and air can flow only into the circulation air passage 24 that connects the suction port 11 and the blowout port 16. At this time, the circulation fan 12 starts operation, and the heating means 15 is energized. On the other hand, in the ventilation unit 1A, since the backflow prevention means 7 is provided in the ventilation unit 1A, the ventilation fan 5 can be stopped and the ventilation of the other rooms can be stopped.

  As described above, the heating operation of the bathroom is performed by the circulation fan 12, and the ventilation connection port 17 is blocked by the air path switching unit 14, so that the ventilation fan 5 can be stopped. Moreover, since the ventilation fan 5 can be stopped, the noise at the time of heating operation of a bathroom can be reduced.

  From the above description, the bathroom dryer 1 according to the present embodiment has a function of operating the installed bathroom by a remote controller that switches each operation mode and performing three operations of ventilation, drying, and heating. . Furthermore, it is possible to ventilate other rooms simultaneously or separately with these operations.

  In the operation of ventilating the other room with the ventilation of the bathroom stopped, the ventilation fan 5 is driven and the air path switching means 14 is configured as a circulation air path so that the other room sucked from the ventilation inlet 3 Air can be exhausted from the ventilation exhaust port 8 to the outside through the exhaust port 19 to ventilate only the other rooms. Further, the circulation unit 1B communicated with the ventilation exhaust port 8 by the dynamic pressure passing through the ventilation exhaust port 8 of the ventilation unit 1A by driving the ventilation fan 5 with the air path switching means 14 as a ventilation air channel configuration. The static pressure at the exhaust port 19 is reduced, and the air communicated with the exhaust port 19 causes a pressure difference with the bathroom air due to the reduced static pressure, and an induced flow is generated. For this reason, it is possible to perform weak ventilation of the bathroom by sucking air from the bathroom side and combining the air in the other room and the air in the bathroom at the exhaust port 19 and exhausting them to the outside.

  In the simultaneous ventilation operation of the bathroom and other rooms, the ventilation fan 5 is driven with the above-described air path switching means 14 configured as a ventilation air path, and the circulation fan 12 is operated at the same time, thereby reducing the ventilation air volume in the other rooms. The ventilation air volume in the bathroom can be easily increased.

  In the operation of ventilating the bathroom with the ventilation of the other rooms stopped, the air sucked from the bathroom by the circulation fan 12 is blown to the exhaust port 19 side by the air passage switching means 14 and the air is exhausted to the outside. . In this embodiment, by providing the backflow prevention means 7 at the ventilation exhaust port 8 of the ventilation unit 1A, it is possible to prevent the moist air in the bathroom from flowing back to other rooms. Conventionally, it has been necessary to drive the ventilation fan, but the circulation unit 1B and the ventilation unit 1A are joined at the exhaust part, and the ventilation unit 1A is provided with the backflow prevention means 7, thereby stopping the ventilation fan 5 and stopping the bathroom. Ventilation operation can be performed.

  In the operation of ventilating the other rooms during the drying operation of the bathroom, the drying of the bathroom is performed by dividing the air sucked from the bathroom by the circulation fan 12 into the circulation air passage and the exhaust air passage by the air passage switching means 14. The air diverted to the path heats the air using the heating means 15 and blows warm air into the bathroom, and the air diverted to the exhaust air path exhausts a part of the air in the bathroom to the outside. Dry in the bathroom. At this time, the air volume ratio between the exhaust air passage and the circulation air passage is set by the opening degree of the air passage switching means 14 so that the circulation air flow is larger than the ventilation air flow in order to increase the bathroom drying time. For ventilation in the other room, the air in the other room sucked from the ventilation suction port 3 by the ventilation fan 5 is blown to the ventilation exhaust port 8, mixed with the air in the bathroom through the exhaust port 19 of the circulation unit 1B, and exhausted to the outside. .

  In the case where the ventilation of the other room is stopped during the drying operation of the bathroom, the drying of the bathroom is performed by the circulation fan 12 and the air in the bathroom sucked from the suction port 11 is turned into the circulation air passage and the exhaust air passage by the air passage switching means 14. The air that is diverted and divided into the circulation air passage heats the air using the heating means 15 and blows warm air into the bathroom, and the air that is diverted into the exhaust air passage is part of the air in the bathroom. Exhaust the outside to dry in the bathroom. In the present embodiment, by providing the backflow prevention means 7 at the ventilation exhaust port 8 of the ventilation unit 1A, it is possible to prevent the damp air in the bathroom from flowing back to the other rooms. In the conventional case, in order to perform the drying operation of the bathroom, it was necessary to drive the ventilation fan, but the circulation unit 1B and the ventilation unit 1A were joined at the exhaust part, and the backflow prevention means 7 was provided in the ventilation unit 1A. The bathroom can be dried while the ventilation fan 5 is stopped.

In the operation in which the bathroom ventilates the other room during the heating operation of the bathroom, the heating of the bathroom closes the ventilation connection port 17 by the air passage switching means 14 with the air in the bathroom sucked by the circulation fan 12, and configures the circulation air passage, After heating the air using the heating means 15, the air is blown into the bathroom to heat the bathroom.
For ventilation in the other room, the air in the other room sucked from the ventilation suction port 3 by the ventilation fan 5 is blown to the ventilation exhaust port 8, and the air is exhausted to the outside through the exhaust port 19 of the circulation unit 1B. At this time, since the ventilation air passage of the ventilation unit 1A and the circulation air passage of the circulation unit 1B are separated by the air passage switching means 14, the smell of the other room such as a toilet is prevented from entering the bathroom. Can do.

When the bathroom stops ventilation during heating operation, the ventilation fan 5 is separated from the ventilation air passage of the ventilation unit 1A and the circulation air passage of the circulation unit 1B by the air passage switching means 14. Just stop.
In order to perform each of the above-described operations, the air path is configured according to the rotational position of the air path switching means 14 that is rotationally driven.

Embodiment 2. FIG.
FIG. 12 is a schematic cross-sectional view of the bathroom dryer 1 according to Embodiment 2 of the present invention, and shows a side cross-sectional view (a) and a plan cross-sectional view (b) of the bathroom dryer 1.
With reference to FIG. 12, the arrangement configuration of the ventilation unit 1A and the circulation unit 1B in the bathroom dryer 1 will be described. Here, differences from the first embodiment will be mainly described. The same reference numerals are used for parts that are the same as or correspond to those in the first embodiment.

  The ventilation unit 1A is arranged on the upper part of the circulation unit 1B so as to exist within the projection plane of the circulation unit 1B, and is configured in a unit size that does not protrude outward from the outline of the upper surface of the circulation unit 1B. For this reason, since the bathroom dryer 1 has fewer protrusions in the outer peripheral direction of the product and is easy to attach and detach to the ceiling surface of the unit bath, it is a bathroom dryer with good workability and maintainability of the product. . Moreover, the weight of the product is reduced by making the ventilation unit 1A compact, the workability is improved, and the product cost can be suppressed by making the product compact.

  FIG. 13 is a schematic diagram of an example of piping installation in the bathroom dryer 1 according to the second embodiment. As shown in FIG. 13, the position of the ventilation suction port 3 of the ventilation unit 1A is characterized in that it is arranged on the side surface of the ventilation unit 1A when viewed from the ventilation exhaust port 8 of the ventilation unit 1A. The ventilation intake port 3 of the ventilation unit 1A can be arranged on the side as viewed from the ventilation exhaust port 8 of the ventilation unit 1A, so that the ducts D1 and DR2 can be piped from various directions, and the degree of freedom of construction Increases the workability.

Embodiment 3 FIG.
FIG. 14 is a schematic partial cross-sectional view showing another example of the double pipe structure of the exhaust port and the ventilation exhaust port in the bathroom dryer 1 according to Embodiment 3 of the present invention. Here, differences from the first embodiment will be mainly described. The same reference numerals are used for parts that are the same as or correspond to those in the first embodiment.

In the third embodiment, the ventilation exhaust port 8 of the ventilation unit 1A is configured as an outer tube, the exhaust port 19 of the circulation unit 1B is configured as an inner tube, and the exhaust air passage 18 is configured in the ventilation unit 1A. is there.
Thus, the ventilation exhaust port 8 on the outer tube side of the ventilation unit 1A and the exhaust port 19 on the inner tube side of the circulation unit 1B have a double tube structure, and the double tube structure of Embodiment 1 is reversed. This is an example.

In the present embodiment, when the air is ventilated by the ventilation fan 5, the air velocity through which ventilation passes is increased by the double pipe structure of the exhaust port 19 and the ventilation exhaust port 8, and air is attracted from the ventilation connection port 17 of the circulation unit 1B. Can be made.
According to the structure of the present embodiment, the same effect as in the first embodiment can be obtained.

  The bathroom dryer of the present invention can be used as a household or commercial bathroom dryer that performs ventilation, drying, and heating of air in a bathroom.

  1 Bathroom dryer, 1A Ventilation unit, 1B Circulation unit, 2 Ventilation chamber, 3 Ventilation suction port, 3A Ventilation sub suction port, 3B Ventilation sub suction port, 4 Ventilation orifice plate, 5 Ventilation fan, 6 Ventilation fan motor, 7 Backflow Prevention means, 7a Open / close damper, 7b Rotating shaft, 8 Ventilation exhaust port, 9 Exterior casing, 10 Circulating orifice plate, 11 Suction port, 12 Circulating fan, 13 Circulating fan motor, 14 Air path switching means, 14a Air path switching plate, 14b Rotating shaft, 14c Fan gear, 14d Small gear, 15 Heating means, 16 Air outlet, 16a Air outlet guide grille, 16b Side plate, 16c Blade plate, 17 Ventilation connection port, 18 Exhaust air passage, 19 Exhaust port, 20 Filter, 21 Design panel, 22 Clearance opening, 23 Control section, 24 Circulating air path, 25 Air path Contact position of the switching means (ventilation connection port closed position), 26 Contact position of the airway switching means (ventilation connection port open position), 27 Stopper, BR bathroom, D1 duct, DR dressing room, DR1 suction port, DR2 duct, KS Interstory space, DKS duct.

Claims (7)

A circulation unit having the function of ventilating, drying and heating the bathroom;
A ventilation unit having a function of ventilating other rooms other than the bathroom;
A bathroom dryer comprising:
The circulation unit is
A suction port and a blowout port communicating with the bathroom space;
An exhaust port communicating with the outdoors,
A circulation air passage connecting the suction port and the outlet port;
An exhaust air passage connecting the suction port and the exhaust port via a ventilation connection port;
A blower that sucks air from the suction port and blows air to the circulation air passage or the exhaust air passage;
Heating means for heating air circulating in the circulation air passage;
An air path switching means capable of opening and closing the ventilation connection port and capable of switching to one or both of the circulation air path and the exhaust air path;
With
The ventilation unit is
Ventilation suction port communicating with other room space,
A ventilation exhaust port communicating with the exhaust port;
A blower that sucks air from the ventilation suction port and blows air to the ventilation exhaust port;
With
The said circulation unit joins the air which blows off from the ventilation exhaust port of the said ventilation unit, and the air which blows off from the exhaust port of the said circulation unit so that an attraction | suction flow may arise, and it is discharged | emitted.   The bathroom dryer according to claim 1, wherein a ventilation exhaust port of the ventilation unit and an exhaust port of the circulation unit have a double pipe structure.   The bathroom dryer according to claim 1, wherein the ventilation unit includes a backflow prevention means for preventing a backflow of air from the ventilation exhaust port.   The bathroom dryer according to claim 3, wherein the backflow prevention means is opened and closed by wind pressure.   The bathroom dryer according to claim 3, wherein the backflow prevention means is opened and closed by electric drive.   The bathroom dryer according to any one of claims 1 to 3, wherein the ventilation unit is disposed in an upper part of the circulation unit.   The bathroom dryer according to claim 6, wherein the ventilation unit is formed so as not to go outside from an outline of an upper surface of the circulation unit.

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