JP4604588B2 - Bathroom air conditioner - Google Patents

Description

  The present invention relates to a bathroom air conditioner with improved air direction control function and air volume control function.

  As a conventional bathroom air conditioner, there are an air introduction chamber that sucks in the air in the bathroom, a circulation air passage that returns the sucked air back to the bathroom, and an exhaust air passage that exhausts the air sucked from inside the bathroom to the outside of the building (For example, refer patent document 1). A heater for heating is installed in the circulation air passage, and the inhaled air can be warmed and blown into the bathroom.

  The circulation air passage and the exhaust air passage are connected to a damper storage chamber for distributing air to the circulation air passage and the exhaust air passage, and the damper storage chamber is connected to an air outlet of the air introduction chamber. The damper storage room is equipped with a damper that switches the air flow path, and the angle of the damper can be switched by selecting a remote controller button on the bathroom wall or dressing room wall. You can choose to exhaust or circulate.

  Recently, laundry pipes are installed on the vertical walls facing the bathroom, clothes drying function to dry clothes by hanging hangers etc. on the laundry pipe, bathing heating function when heating in the bathroom with bathroom air conditioner, Some have a preheating function that warms the bathroom before bathing, or a cool breeze function that blows cool air when taking a bath. These functions are executed in combination with changing the angle of the damper and controlling the heater on / off. ing.

Therefore, the remote controller of the bathroom air conditioner has an exhaust button that exhausts the bathroom air to the outside, a cool air button that returns the bathroom air to the bathroom, and a bath heating button that warms the bathroom air back to the bathroom and returns it to the bathroom. And a button for performing various functions such as a preheating button and a clothes drying button, and the rotation of the motor of the bathroom air conditioner and the setting of the angle of the damper and the heater on / off are controlled based on the button selection of the remote controller. It has become so.
JP 2003-294289 A

  By the way, in this bathroom air conditioner, when drying the walls and clothes in the bathroom, the air in the bathroom is sucked into the bathroom air conditioner, the air sucked in by energizing the heater is warmed and blown out again into the bathroom On the other hand, fresh air is taken into the bathroom and air saturated with water vapor is exhausted as much as possible.

  However, heating and drying the air by controlling the energization of the heater in this way consumes a lot of electric energy and the running cost is high, and we do not know the time when the drying is completed. There is a case that it goes.

  In addition, in the conventional bathroom air conditioner, if you want to heat the bathroom before bathing, you can go to a dressing room in advance and press the preheat button on the remote controller of the bathroom air conditioner, To avoid cold drafts that blow circulating air directly on the body during bathing, press the bath heating button for bath heating, or press the dry button to dry the bathroom after bathing, etc. There is also a problem that it is necessary and the operations are troublesome.

  The present invention has been made paying attention to such a problem and can be operated by a remote controller or the like, but is automatically operated from heating before bathing to bathroom drying after bathing by automatic operation. An object is to provide an apparatus.

In order to solve the above-described problem, the bathroom air conditioner according to claim 1 of the present application is a bathroom air conditioner having a plurality of operation modes such as a heating mode in which air in a bathroom is heated and hot air is blown into the bathroom.
A preheating mode in which the air in the bathroom is warmed before bathing, a bathing heating mode in which at least one of the amount of warm air and the amount of heat generated by the heating means is reduced from the preheating mode, and a plurality of operation modes are continuously operated. Auto mode to perform, and 24 hour ventilation mode to perform regular ventilation,
Based on the ON operation of the lighting switch in the bathroom and the ON operation of the switch in the auto mode, the preliminary heating mode is started and the 24-hour ventilation is stopped or the ventilation amount is reduced in the bathroom by the 24-hour ventilation mode. ,
When the bather enters the bathroom, the preliminary heating mode is stopped and the bath heating mode is performed, and it is determined that the bather has left the bathroom based on an OFF operation of the bathroom lighting switch. Stop the bath heating mode and dry in the bathroom,
The drying in the bathroom is performed in a bathroom drying mode in which air is blown out into the bathroom and the air in the bathroom is discharged to dry the wall surface in the bathroom, before the start of the bathroom drying mode, In the 24-hour ventilation mode, the 24-hour ventilation is resumed or the ventilation amount is increased in the bathroom .

The bathroom air conditioner according to claim 2 of the present application is a bathroom air conditioner having a plurality of operation modes such as a heating mode in which the air in the bathroom is warmed and warm air is blown into the bathroom.
A preheating mode in which the air in the bathroom is warmed before bathing, a bathing heating mode in which at least one of the amount of warm air and the amount of heat generated by the heating means is reduced from the preheating mode, and a plurality of operation modes are continuously operated. Auto mode to perform, and 24 hour ventilation mode to perform regular ventilation,
Based on the ON operation of the lighting switch in the bathroom and the ON operation of the switch in the auto mode, the preliminary heating mode is started and the 24-hour ventilation is stopped or the ventilation amount is reduced in the bathroom by the 24-hour ventilation mode. ,
When the bather enters the bathroom, the preliminary heating mode is stopped and the bath heating mode is performed, and it is determined that the bather has left the bathroom based on an OFF operation of the bathroom lighting switch. Stop the bath heating mode and dry in the bathroom,
The drying in the bathroom is performed by resuming the 24-hour ventilation in the bathroom or increasing the ventilation amount in the 24-hour ventilation mode .

According to the bathroom air conditioner of the present application, since automatic operation is performed, it is possible to eliminate the need for switches and button operations as much as possible, and to eliminate annoyance.

According to the bathroom air conditioner of the present application, it is possible to automatically switch between preliminary heating and bathing heating.

According to the bathroom air-conditioning apparatus of the present application , the bathroom wall surface can be automatically dried after bathing, and the prevention of the generation of mold due to condensation or the operation becomes unnecessary, and the troublesomeness is eliminated.

  Hereinafter, a bathroom air conditioner according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a state in which the bathroom air conditioner 1 is installed on the bathroom ceiling Rf. The bathroom air conditioner 1 is installed in the opening Ro of the bathroom ceiling Rf. A mounting frame 3 is fixed to the housing 2 of the bathroom air conditioner 1 by screws, and the mounting frame 3 is supported by being suspended from the ceiling wall of the building by anchor bolts 4. An exhaust port 16 is opened in the side wall portion of the housing 2, and the duct joint 5 faces the exhaust port 16 and opens. The duct joint 5 is supported by the mounting frame 3 in advance, and when the housing 2 is inserted into the mounting frame 3 and the housing 2 and the mounting frame 3 are fixed by screws, the duct joint 5 Is sealed and in contact with the side wall of the housing 2 of the bathroom air conditioner 1, and the duct joint 5 communicates with the exhaust port 16. One end of the duct D is fixed to the duct joint 5, and the other end of the duct D is connected to an opening that leads to the outside of the building.

  The housing 2 includes a suction port 7 communicating with the room of the bathroom Br and an air outlet 8 for discharging the air sucked into the housing 2 to the bathroom again, and an air introduction chamber is provided inside the suction port 7. 9 is formed. A fan case 10 is installed in the air introduction chamber 9, and the air suction port 11 of the fan case 10 faces the suction port 7. A suction fan 12 including a centrifugal fan is disposed inside the fan case 10, and the suction fan 12 is fixed to the rotation shaft of the fan motor 13.

  A blower outlet 14 for discharging the sucked air is formed on the side surface of the fan case 10, and the blower outlet 14 is opened facing the damper storage chamber 15. The above-described exhaust port 16 is formed in the side wall of the damper storage chamber 15, and the above-described air outlet 8 is formed in the bottom of the damper storage chamber 15. The air passage on the exhaust outlet 16 side of the damper storage chamber 15 is an exhaust air passage, and the air passage on the outlet 8 side of the damper storage chamber 15 is a circulation air passage. A damper 17 is provided as air path switching means for switching between the exhaust air path and the circulation air path.

  A rotating shaft 18 is installed at one end of the damper 17. The rotating shaft 18 is linked to an AC motor (not shown) that controls the damper angle via a cam mechanism and a speed reduction mechanism (not shown). A heater 19 as a means for warming air is installed at the outlet 8 serving as an exhaust air passage. As an example of the heater 19, a PTC heater is provided. The heater 19 may be either or both of a ceramic heater and a sheathed heater.

  The bathroom air conditioner 1 is provided with a control device C for controlling on / off of the fan motor 13, on / off of the heater 19, and angle adjustment (large / medium / small) of the AC motor for rotating the damper 17. The control device C exhausts the bathroom air (the damper 17 is set to the position A, closes the circulation air passage and opens the exhaust air passage), and circulates the bathroom air (the damper 17 is placed at the position C). The exhaust air passage is closed and the circulation air passage is opened), and the circulation and ventilation of the bathroom air (with the damper 17 in the position B, a part of both the exhaust air circulation passage and the circulation air passage are opened. A microprocessor for controlling whether or not the circulating air is heated and its peripheral circuit are provided.

  The control device C of the bathroom air conditioner 1 is connected to a remote controller 20 provided on the wall surface of the bathroom or the wall surface of the dressing room, and the remote controller 20 is used for selecting and determining the operation mode of the bathroom air conditioner 1. Various operation mode selection buttons B and a liquid crystal display LCD are provided.

  A front panel 21 is screwed and fixed below the air outlet 8 of the bathroom air conditioner 1. A suction port 22 is formed in a portion of the front panel 21 that faces the suction port 7, and a blower port 23 is formed in a portion of the front panel 21 that faces the blowout port 8. Rotating shafts 24 </ b> A and 25 </ b> A of louvers 24 and 25 made of a plurality of blade members are attached to the blowout port 23 so as to be capable of changing the angle, and links 26 and 26 are attached to the upper ends of the louvers 24 and 25. 27 is pivotably mounted. Stepping motors 28 and 29 are installed at the opening edge of the air outlet 23 of the front panel 21, and links 30 and 31 are fixed to the rotation shafts of the stepping motors 28 and 29. The links 26 and 27 are connected to the links 30 and 31, and the angle control of the louvers 24 and 25 is performed by adjusting the rotation angle of the stepping motors 28 and 29.

  In addition to the main switch, the remote controller 20 is provided with a selection button B for executing various functions. The selection button B includes preliminary heating, bathing heating, clothes drying, bathroom drying, cool air, ventilation. , Timer “On”, “Off” and other buttons are provided. The selection operation of the selection button B of the remote controller 20 is transmitted to the control device C, and the control device C controls the bathroom air conditioner 1 based on the transmitted selection mode. The clothes drying mode is a mode for drying clothes, and the bathroom drying is a mode for drying a wall surface for removing water droplets and the like adhering to the ceiling surface, side wall surface, floor surface, etc. of the bathroom.

  That is, when the warm air or cool air blown out from the air outlet 8 is blown into the bathroom Br, the control device C controls the rotation angle of the stepping motors 28 and 29 so that the air blowing direction is within a narrow angle. It can be narrowed, the air blowing direction can be expanded within a wide angle, or it can be swung in a certain direction.

  As described above, the bathroom air conditioner 1 has the louvers 24 and 25 attached so that the angle can be changed, and the louvers 24 and 25 can change the angle according to the selection operation mode of the selection button B of the remote controller 20. Heating can be performed without letting the bather feel the cold when blowing hot air at the time of bathing, and drying unevenness of clothes hung on the laundry pipe LP (see FIG. 9) when clothes are dried is eliminated. It is possible to provide a bathroom air conditioner that can be used.

  When the selection operation mode of the selection button B of the remote controller 20 is a preheating mode for heating the air in the bathroom before bathing, the fan motor 13 is turned on, the damper 17 opens the circulation air passage side, and the heater 19 is energized. Then, as shown in FIG. 1 (a), the plurality of louvers 24, 25 are inclined in a reverse “C” shape so as to be narrower in the direction in which the air is blown out.

  As a result, the air warmed by the heater can be sent from the ceiling side to a distant position on the floor side of the washing place by increasing the wind speed, and the air in the entire bathroom can be warmed quickly and uniformly without stirring. it can.

  That the air blowing direction of the louvers 24 and 25 is narrowed within a narrow angle means that the tips of the louvers 24 and 25 approach each other toward the air blowing direction and the angle at which the air blows out becomes narrow. . Thereby, the pressure which blows off air increases and air reaches a position far from the blower outlet 8. In particular, when warm air is sent out, warm air can be blown from the ceiling to the vicinity of the floor, and air is agitated over a wide area in the bathroom, so the air in the bathroom can be warmed in a short time by preheating. it can.

  Further, when the selection operation mode of the selection button B of the remote controller 20 is a bathing / heating mode in which the air in the bathroom being bathed is heated, the fan motor 13 is turned on, the damper 17 opens the circulation air passage side, and the heater 19 As shown in FIG. 1 (C), since the plurality of louvers 24 and 25 are inclined with respect to the direction in which the air is blown out, the air is warmed by the heater. It is dispersed so that it does not directly hit the person and blown out from the outlet, preventing the bather from feeling cold.

  When the louvers 24 and 25 are inclined in a substantially “C” shape and the air blowing direction is expanded within a wide angle, the tips of the louvers 24 and 25 are separated from each other toward the air blowing direction, This means that the blowing angle is widened. As a result, the air blowing direction is dispersed, and the air is sent along the wall surface of the bathroom away from the central direction of the air outlet 8. In particular, when air is blown onto a wet body such as during body washing, even when the air is warmed, the body is cooled by the heat of vaporization of moisture, so that the bather can easily remember the cold.

  In such a case, even if the air warmed by the heater is circulated in the bathroom, the air blowing range of the louvers 24 and 25 is dispersed over a wide area so that the person taking a bath does not feel cold. The air inside can be warmed and the air is blown over a wide range, so that the warm air can be sent out over a wide area of the bathroom and the air can be warmed in a short time.

  In the bath heating mode, the louvers 24 and 25 may be provided only on the bathtub side. In the bath heating mode, hot air may be blown out in the direction of the washing place (Bb) as long as air is not directly applied to the bather.

  Further, when the selection operation mode of the selection button B of the remote controller 20 is a clothes drying mode for drying clothes in the bathroom, the fan motor 13 is turned on, the heater 19 is energized, and the damper 17 opens the circulation air passage side. The damper 17 is in the position B, and while circulating air in the bathroom, a part of the air is exhausted from the exhaust port 16 to the outside, so that at least one of the top and bottom, the left and right of the clothes hung in the bathroom The air blowing direction of the plurality of louvers 24 and 25 swings to at least one of up and down and left and right so that the air is blown.

  As a result, air is blown over the entire clothes hung in the bathroom, and there is no uneven drying of the clothes.

  The air blowing direction of the louvers 24 and 25 swings, for example, by swinging the blowing direction within a range of a predetermined angle (for example, ± 10 degrees) around a predetermined angle at which the louvers 24 and 25 blow out air. In other words, the air blowing direction is swung within a predetermined range with a certain blowing angle as a center. This is because when a laundry pipe LP (clothes basket) is installed on the opposite wall surface of the bathroom, clothes are hung on the laundry pipe, clothes are dried on the clothes hanger, and the clothes are dried only in a certain direction. This is because if the wind is not blown, only clothes at a fixed position can be dried, and in some cases, only a part of one piece of clothes is dried. When the dry air is sent out toward the clothing, the air dried over a wide range can be sent out by swinging the louvers 24 and 25, and the drying unevenness of the clothing is eliminated.

  Further, when the selection operation mode of the selection button B of the remote controller 20 is a cool breeze mode in which cool breeze is blown into the bathroom, the fan motor 13 is turned on and the damper 17 is in the position B shown in FIG. Then, the circulation air passage side is opened, the heater 19 is turned off and turned off, and the air is blown out between the plurality of louvers 24 and 25 so that air is blown to the washing area in the bathroom.

  As a result, a cool breeze is sent to the bather, and an exhilarating bath can be performed for bathing in summer and the like. The remote controller 20 of the bathroom air conditioner includes a ventilation button for exhausting the bathroom air to the outdoors, a cool air button for returning the bathroom air to the bathroom, and a bath heating button for warming the bathroom air back to the bathroom with a heater. And a button for performing various functions such as a preheating button and a clothes drying button, and the rotation of the motor of the bathroom air conditioner, the setting of the angle of the damper and the energization of the heater are controlled based on the button selection of the remote controller 20. It has become so.

  2 and 3 show another configuration example for adjusting the swing angle of the louvers 24 and 25 in the front panel 21. FIG. In this mechanism, a frame portion 40 is assembled inside the air outlet 23 of the front panel 21, and louvers 42 </ b> A, 42 </ b> B, 43 </ b> A, 43 </ b> B are interposed between the opposing vertical wall portions 41 </ b> A, 41 </ b> B of the frame portion 40. Rotating shafts 44A (see FIG. 3) that are disposed and project from both ends of the louvers 42A, 42B, 43A, and 43B are fixed to the vertical wall portions 41A and 41B. A rotating shaft 44A protruding from the ends of the louvers 42A, 42B, 43A, and 43B penetrates the one vertical wall portion 41A in a freely rotatable manner.

  Links 48 and 49 are fixed to the rotation shafts 44A of the louvers 42A, 42B, 43A, and 43B, respectively. The links 48 are connected by a link 49, and the links 48 are directed parallel to each other depending on the rotation angle of the rotation shaft 44A.

  Pinion gears 45 </ b> A and 45 </ b> B are attached and fixed to the rotation shaft 44 </ b> A on the center side of the frame 40. A rack gear 46 meshes with the pinion gears 45A and 45B, and a drive pinion gear 47 meshes with the rack gear 46.

  The driving pinion gear 47 is fixed to a rotating shaft of a stepping motor (not shown). The stepping motor to which the pinion gear 47 is attached is installed inside the vertical wall portion 41C of the frame portion 40, and is connected to the control device C of the bathroom air conditioner 1 via a connector and a lead wire (not shown). It is driven based on the control of the microprocessor.

The stepping motor that drives the pinion gear 47 rotates forward at a predetermined number of revolutions in order to squeeze air from the air outlet 23 and increase the wind speed to blow, or to diffuse and blow air. The louvers 42A, 42B, 43A, and 43B are tilted by reversing and stopping.

Further, the air is squeezed and blown from the outlet 23, or the air is diffused and continuously blown, and the concentrated air and the diffused air are repeated in the bathroom to heat or dry the air in the entire bathroom. In order to speed up or change the cool breeze, the stepping motor that drives the pinion gear 47 repeats normal rotation and reverse rotation at a predetermined rotational speed to swing the louvers 42A, 42B, 43A, 43B. .

  Further, by adjusting the mounting angles of the louvers 42A, 42B, 43A, 43B and the rotary shafts 44A, 44B, the louvers 42A, 42B, 43A are within a predetermined range from the direction directly below the frame portion 40 to the direction of a certain inclination angle. , 43B can be swung.

  The links 48 and 49 may be configured to be shared by the louvers 42A, 42B, 43A, and 43B, or may be configured as separate members from the louvers 42A, 42B, 43A, and 43B.

FIG. 4 is a block diagram of the control device C of the bathroom air conditioner 1. As described above, the control device C includes the microprocessor (CPU) 50. The microprocessor 50 is provided in the current sensor 51 for detecting ON / OFF of the bathroom lighting, the air suction port 11, and the like. A temperature sensor 52 comprising a thermistor, a humidity sensor 53, a pyroelectric sensor 54 as a human body sensor for detecting whether a person has entered the bathroom, a remote controller 20, a heater 19, a fan motor 13, A motor 55 for driving the damper and a motor 56 for driving the louvers 24 and 25 are connected. As a human body sensor for detecting a bather, in addition to a human sensor such as a pyroelectric sensor 54, detection of bathroom lighting may be used.

  FIG. 5A shows the flow of automatic operation in the bathroom air conditioner 1. First, it starts by turning on the main switch of the bathroom air conditioner 1 (step 1). The bathroom air conditioner 1 has a 24-hour ventilation function, and the bathroom air-conditioner 1 is provided with a dedicated switch as a switch for the 24-hour ventilation operation. Since this 24-hour ventilation switch (B7) is normally selected, it is assumed that it is already selected in the automatic operation control of FIG.

  Note that 24-hour ventilation is a function that provides constant ventilation. In addition to constantly ventilating the bathroom, the entire house is used to remove harmful substances such as formaldehyde and VO that have become problematic in recent years. Ventilation is performed. This bathroom air conditioner 1 is a ventilator that constantly ventilates, and performs such that it satisfies a predetermined ventilation frequency (for example, 0.5 times / hour) in a ventilation target area of a house, or other constant ventilation device (see FIG. The bathroom air conditioner 1 may be configured to compensate for the shortage to satisfy the ventilation frequency.

  Air in each room is sucked in from the air inlet 11 which is the inlet of the fan case through the door undercut part, through the bathroom door door part Do, and through the inlet 7 of the bathroom air conditioner. 16 is always discharged.

  When the auto mode button B1 is ON, it is determined whether heating is performed regardless of bathing heating or preliminary heating (step 2). If the auto mode button B1 is OFF, the ventilation operation is performed for 24 hours. If heating is to be performed, it is determined whether the current sensor 51 that detects that a current is flowing in the bathroom lighting is ON / OFF as to whether the bathroom lighting is on (step 3). If the current sensor 51 remains OFF, it waits until it is turned ON.

When the current sensor 51 is turned on, the heater 19 is energized, the tips of the louvers 24, 25 are narrowed, warm air is blown to the floor, preheating is started, and 24-hour ventilation in the bathroom is stopped or In order to reduce the ventilation amount , the damper motor 55 is controlled so that the damper 17 reduces the ventilation cross-sectional area on the exhaust port 16 side (step 4).

In this bathroom air conditioner 1, when the bathroom lighting is turned on, the ventilation is stopped for 24 hours or the amount of ventilation is reduced. However, as described in other embodiments described later, the air in the bathroom is exhausted. In the case of a bathroom air conditioner equipped with a ventilation fan dedicated to ventilation and a circulation fan that circulates the sucked air into the bathroom, the ducts D2 and D3 are connected to the ventilator installed in another room such as a dressing room or toilet. If the bathroom air can be sucked in, the ventilation is stopped or the ventilation volume is reduced in the bathroom, but the ventilation of the entire house is stopped for 24 hours or the ventilation volume is reduced. It does not have to be.

  Next, in the flowchart of FIG. 5A, when a bather enters the bathroom and the pyroelectric sensor 54 is turned on (step 5), preheating is stopped and bathing heating is started (step 6). . If the pyroelectric sensor 54 is not turned on, the process waits until a bather is detected. Here, if the bather does not enter the bathroom by a predetermined time, it may be processed so as to move before step 7 described later.

  When bath heating is started in Step 6, the heater 19 is energized and the tips of the louvers 24, 25 are widened so that the wind does not directly hit the bather, but warm wind is sent along the wall surface of the entire bathroom. So start bath heating. Bathing heating is maintained during bathing, but other controls may be entered. When bathing is completed and the bathroom lighting is turned off (step 7), bathing heating is stopped, and the bathroom is reopened or restored for 24 hours (step 8).

  After step 8, the humidity of the humidity sensor 53 is detected (step 9). If the humidity is a predetermined value (for example, 60%) or more, the process proceeds to step 10, where the heater 19 is energized and the louver 24, Swing or open / close 25 to blow warm air, start drying, control damper motor 55, place damper 17 in position B, and exhaust some air while circulating air into the bathroom The bathroom drying which performs the circulation ventilation which starts is started (step 10). Unlike the clothes drying mode, the bathroom drying mode may blow air without energizing the heater.

Then, the humidity in the bathroom is determined again by the humidity sensor 53 (step 11). When the humidity becomes below a predetermined value (for example, 60%), bathroom drying is stopped (step 12), and the auto mode is stopped (step 13 ). . Since the operation returns to the 24-hour ventilation operation in step 8, the 24-hour ventilation operation is continued again after the auto mode is stopped.

  In addition, as shown in FIG.5 (b), it is also possible to perform the drying process of a bathroom independently. In this case, the control device C of the bathroom air conditioner 1 detects the humidity by the humidity sensor 53 after the start by the main switch ON when the button B5 in the drying mode for performing clothes drying or bathroom drying is pressed alone. The drying level in the bathroom is determined. If the drying level is equal to or higher than a predetermined value, the heater 19 is energized, the exhaust port 16 is closed or narrowed by the damper 17, and the louvers 24 and 25 are swung or opened and closed. Dry the inside. If the dry level is equal to or higher than the predetermined value again after this dry process, the dry process is continued. When the dry level drops below the predetermined value, the dry process is terminated and ventilation is resumed for 24 hours.

  In the above embodiment, it is determined whether or not heating (either preheating or bathing heating may be performed) is performed in Step 2 under the auto mode, and heating is not performed (for example, in the case of summer bathing). In order to perform automatic drying, the process is shifted to before step 9, but automatic operation is possible even if steps 2 and 9 are omitted, and there is an advantage that the bathroom can be automatically dried.

  6 to 8 show flowcharts of other energy-saving operation of the bathroom air conditioner 1. The control device C of the bathroom air conditioner 1 in FIG. 6 is of a type that does not include the humidity sensor 53 and the pyroelectric sensor 54.

  When the main switch is turned on and the 24-hour ventilation button B7 is selected, the 24-hour ventilation operation starts (step 1), and the selection of the auto mode button B1 is determined (step 2). If the auto mode button B1 is ON, the automatic operation mode is set. If the auto mode button B1 is OFF, the process waits until the auto mode button B1 is turned ON.

Under the automatic operation mode, ON / OFF of the illumination switch is determined (step 4 ). In step 3, when the lighting switch is turned on and the current sensor 51 is turned on, the ventilation of the bathroom is stopped for 24 hours or the amount of ventilation is reduced, and preheating is performed for a predetermined time (a few minutes of 1 to 5 minutes). Then, it shifts to bathing heating (step 5). In this preheating mode, the temperature of the heater 19 is controlled by detecting the temperature with the temperature sensor 52, and the temperature of the hot air is kept within a predetermined temperature or within a predetermined temperature range (for example, within ± 5% of the predetermined temperature). Control to be.

  Under bathing heating, the temperature of the heater 19 is controlled so that the heater 19 maintains a predetermined temperature (step 6). After step 6, ON / OFF discrimination of the illumination switch is performed (step 7). When the illumination switch is turned off after bathing and the current sensor 51 is turned off, the process proceeds to step 8 where the 24-hour ventilation is resumed or restored, and the bathroom is dried (step 8). When bathroom drying is completed (step 10), the process returns to the automatic operation standby state. Since this bathroom drying is the same as Step 9 to Step 12 in FIG.

  FIG. 7 shows the flow of processing of a bath heating subroutine. In this bathing heating subroutine, after the subroutine starts, it is determined whether or not the temperature during bathing is equal to or higher than the set temperature (step SB1). When the temperature reaches a set temperature (for example, 50 ° C.), the heater 19 is stopped (step SB2). After step SB2, it is determined whether or not the temperature during bathing is equal to or lower than a set temperature (for example, 40 ° c or lower) (step SB3). If the temperature is equal to or lower than the set temperature, bathing heating is resumed (step SB4).

FIG. 7 checks the temperature of the air blown out from the outlet 23 to the bathroom or the bathroom air sucked in from the inlet 7 to determine the necessity of heating. If the temperature is lower than the set temperature, the heating is automatically performed. This is an automatic operation in which heating is not performed when the temperature is higher than the set temperature.

  In FIG. 8, when the auto mode switch is pressed, the preheating mode is started, and when the bathroom lighting switch is turned on, the mode is shifted to bathing heating. First, when the 24-hour ventilation operation starts, it is determined whether or not it is in the auto mode (step SC1). If it is in the auto mode, the auto operation is started and the 24-hour ventilation is stopped or the ventilation amount is reduced. And the preliminary heating mode is started. (Step SC2). After starting the automatic operation, the current sensor 51 monitors ON / OFF of the lighting switch (step SC3). When the lighting switch is turned on, bathing heating is performed (step SC4). This bath heating (step SC5) may be described with reference to feedback control of bath heating with reference to FIG. 7, and the total air volume blown into the bathroom or the heat generation amount of the heater is weakened. In that case, it is preferable to direct the louvers 24 and 25 in a direction (for example, a bathtub side) that is not on the washing area side. Under bathing heating, ON / OFF of the lighting switch is monitored (step SC6). If the lighting switch is turned off, it is determined that the bathing is completed, and the 24-hour ventilation in the bathroom is restarted or the ventilation volume is increased. Then, the bathroom is dried (step SC7). In this bathroom drying, the end of the drying process is determined over time, and the drying process time is compared with the set time as the bathroom drying starts (step SC8). When the drying processing time reaches the set time, bathroom drying is stopped (step SC9) and the process is terminated.

  As described above, in this bathroom air conditioner 1, the tips of the louvers 24, 25 in the blowing direction are narrowed (during preheating), the tips of the louvers 24, 25 in the blowing direction are widened (during bathing heating), Heating the bathroom before bathing (preliminary heating) or heating the bathroom during bathing (bath heating) by swinging 24, 25 within a predetermined angle around a predetermined blowing direction it can. At that time, in the preliminary heating, the warm air blown from the outlet 8 can be blown to the floor surface of the washing place, and the flow of air in the entire bathroom is increased to increase the heating efficiency of the bathroom. In addition, the bath heating can warm the interior of the bathroom while preventing the bather in the washing area from being directly hit by the wind. Furthermore, unevenness in drying of clothes and bathrooms can be eliminated by swinging the louver when the bathroom is dried after bathing or when clothes are dried.

  In addition, if the bather selects automatic operation of the remote controller 20 by automatic operation, it is possible to automatically switch from preliminary heating to bathing heating switching, and further to switching between bathroom drying after bathing and 24-hour ventilation. So comfort can be significantly improved.

  In addition, the direction in which the louvers 24 and 25 which are the blowout variable portions are movable is not a “C” shape as shown in FIG. 1C, but as shown in FIG. 1D, the louver 24 (25). In the same direction, and can be moved by a driving means such as a stepping motor, directed toward the bathtub during bathing heating, directed toward the washing area during preheating, and directed toward clothing during clothing drying. You may make it swing up and down or right and left. Alternatively, a slide shutter or an opening adjustment shutter may be provided to change the opening area of the outlet.

  FIG. 9 shows a state where the bathroom air conditioner 1 is installed on the ceiling Rf of the bathroom Br. An exhaust port is formed in the outer wall of the building, and a duct D extending from the bathroom air conditioner 1 is connected to the exhaust port. A hood Fd is attached to the exhaust port, and the air in the duct D is exhausted from the hood Fd to the outside of the building. Ro2 is an inspection port, which can be inspected when the cover plate C1 is opened. Air can enter the bathroom Br from the door Dr. The air that has entered the bathroom Br is sucked by the bathroom air conditioner 1. Ba is a bathtub and Bb is a washing place.

10 to 12 show another embodiment of the bathroom air conditioner 100 . As shown in FIGS. 10 to 12, the bathroom air conditioner 100 of this embodiment is provided with a circulation unit 102 in the lower part inside the casing 101 and a ventilation unit 103 in the lower part.

  The fan case 104 of the circulation unit 102 is formed with a suction port 105 for bathroom air. A circulation outlet 106 for returning the sucked air back into the bathroom is opened at the lower part of the circulation unit 102. A circulation fan 107 is provided inside the fan case 104 of the circulation unit 102. Circulation fan 107 is driven by motor M <b> 2 controlled by control device C. The circulation fan 107 sucks air from the suction port 105 of the fan case 104 and blows out the air sucked from the circulation outlet 106. The circulation unit 102 is provided with a heater (not shown) so that the air sucked by the heater can be heated. The control device C of the bathroom air conditioner 100 is the same as the control device C of the bathroom air conditioner 1 and controls the operation of the bathroom air conditioner 100 based on the button operation of the remote controller 20.

The ventilation unit 103 is connected to the bathroom Br and ducts D2 and D3 in other rooms via duct joints 114D and 115D of the suction port 111 and the suction ports 114 to 115 (see FIG. 11). The suction port 116 is closed by a shielding plate 116A. A fan case 108 installed in the ventilation unit 103 is formed with an air inlet 109 for bathroom air. Further, a ventilation outlet 117 for discharging the sucked air to the outside of the building is opened in the side wall portion of the ventilation unit 103, and a duct D for ventilation is connected to the duct joint 117D attached to the ventilation outlet 117. It is connected.

  A ventilation fan 110 is disposed inside the fan case 108 of the ventilation unit 103. The ventilation fan 110 is driven by a motor M1 that is driven and controlled by the controller C. The ventilation fan 110 sucks air from the suction port 109 of the fan case 108 and blows indoor air from the ventilation outlet 117 through the duct D to the outside of the building. An electric shutter 112 for opening and closing the suction port 111 is provided at the suction port 111 of the ventilation unit 103 so that the rotation angle can be controlled.

  The ventilation fan 110 and the circulation fan 107 can be driven by independent motors M1 and M2, respectively, and the ventilation unit 103 and the circulation unit 102 are constituted by separate units.

  In addition to the bathroom, the ventilation unit 103 is provided with a suction port 111 for sucking air from other rooms such as a dressing room and a toilet. The suction port 111 may communicate with the room through ducts D2 and D3 (see FIGS. 9 and 11). The electric shutter 112 of the suction port 111 adjusts the suction amount. When the ventilation switch provided in the remote controller 20 is selected, the ventilation fan 110 is rotated by driving the motor M1, and the air sucked from the suction ports 114 and 115 in the other rooms passes through the suction ducts D2 and D3. Exhausted outdoors.

  It should be noted that the 24-hour ventilation switch of the bathroom air conditioner 100 is normally selected, and ventilation is always performed from the bathroom, the toilet, and the suction port of the dressing room. Further, in the circulation unit 102, a suction port 105 for sucking air in the bathroom is provided separately from the ventilation suction port, and warm air or cool air is blown into the bathroom by energization control of a heater (not shown). To do.

  In the preheating mode before bathing, the motor M2 is driven to rotate the circulation fan 107, and warm air warmed by a heater (not shown) is blown into the bathroom Br from the air outlet 106. At that time, when the above-described swing-controllable louver is provided at the air outlet 106, the control device C controls the rotation of the louver so as to narrow the blowing area so that the hot air reaches the floor of the washing place. To do.

  When the bathing / heating mode is selected, the motor M2 is driven to rotate the circulation fan 107, and the warm air heated by a heater (not shown) is blown into the bathroom Br as in the case of the preheating. The number of rotations of the motor M2 is reduced so as to reduce the blowing air volume. At that time, it may be controlled so as to reduce the heat generation amount of the heater in conjunction with reducing the air volume.

  Moreover, at the time of bathing heating, the above-mentioned louver is controlled to face in a direction other than the washing area. In either the preheating mode or the bathing heating mode, the air in the bathroom is not exhausted (ventilated).

  When the 24-hour ventilation mode is selected, the electric shutter 112 provided in the air inlet 111 that sucks in the bathroom air is closed, so that the air in the bathroom Br is not exhausted. However, in the toilet or dressing room, etc. The whole building is ventilated as each air is sucked and exhausted.

  Further, in the clothes drying mode, the motor M1 is rotated to exhaust the air in the bathroom to the outside by the ventilation fan 110, while the motor M2 is rotated to blow the warm air into the bathroom Br by the circulation fan 107. Swing the swingable louver up and down and left and right with respect to the clothing. Accordingly, when drying a plurality of clothes, the clothes can be uniformly dried.

(A) is sectional drawing which shows the structure of the bathroom air conditioner concerning embodiment of this application, (b) is sectional drawing of the louver by which the front-end | tip part was narrowed, (c) is sectional drawing of the louver by which the front-end | tip part was expanded. . The perspective view which shows the other example of the support mechanism of the louver of FIG. The mechanism figure which shows the example of the rocking | fluctuation mechanism of the louver of FIG. The block diagram of the control apparatus of the bathroom air conditioner of FIG. (A) is a flowchart which shows the flow of a process from ON of the illumination switch at the time of the automatic operation of the bathroom air conditioner of FIG. 1 to the return | restoration of 24-hour ventilation, (b) is a flowchart which shows the flow at the time of a drying process. FIG. 6 is a flowchart showing a simpler process during automatic operation. FIG. 7 is a flowchart showing the flow of temperature control during bathing heating. FIG. 8 is a flow chart when measuring the temperature of the air at the inlet and outlet of the ventilator and controlling it to a predetermined temperature, and automatically drying the bathroom based on the passage of time after bathing. The figure which shows the state which installed the bathroom air conditioner in the bathroom ceiling. Sectional drawing of the bathroom air conditioner provided with the circulation unit and ventilation unit of a bathroom. Explanatory drawing which shows the plane deployment state of the bathroom air conditioner of FIG. The perspective view of the bathroom air conditioner of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bathroom air conditioner 2 Case 8 Air outlet 9 Air inlet 10 Fan case 12 Centrifugal fan 17 Damper C Control device (microprocessor)
D Exhaust duct 20 Remote controller 24, 25 Louver 51 Current sensor 52 Temperature sensor 53 Humidity sensor 54 Pyroelectric sensor B1 Auto mode button B2 Preheating operation button B3 Bathing heating button B4 Cool air button B5 Clothing drying button B6 Drying button B7 24 Time ventilation button

Claims (2)

In a bathroom air conditioner having a plurality of operation modes such as a heating mode that warms the air in the bathroom and blows warm air into the bathroom,
A preheating mode in which the air in the bathroom is warmed before bathing, a bathing heating mode in which at least one of the amount of warm air and the amount of heat generated by the heating means is reduced from the preheating mode, and a plurality of operation modes are continuously operated. Auto mode to perform, and 24 hour ventilation mode to perform regular ventilation,
Based on the ON operation of the lighting switch in the bathroom and the ON operation of the switch in the auto mode, the preliminary heating mode is started and the 24-hour ventilation is stopped or the ventilation amount is reduced in the bathroom by the 24-hour ventilation mode. ,
When the bather enters the bathroom, the preliminary heating mode is stopped and the bath heating mode is performed, and it is determined that the bather has left the bathroom based on an OFF operation of the bathroom lighting switch. Stop the bath heating mode and dry in the bathroom,
The drying in the bathroom is performed in a bathroom drying mode in which air is blown out into the bathroom and the air in the bathroom is discharged to dry the wall surface in the bathroom, before the start of the bathroom drying mode, A bathroom air conditioner characterized by resuming 24-hour ventilation in the bathroom or increasing the ventilation amount in the 24-hour ventilation mode . In a bathroom air conditioner having a plurality of operation modes such as a heating mode that warms the air in the bathroom and blows warm air into the bathroom,
A preheating mode in which the air in the bathroom is warmed before bathing, a bathing heating mode in which at least one of the amount of warm air and the amount of heat generated by the heating means is reduced from the preheating mode, and a plurality of operation modes are continuously operated. Auto mode to perform, and 24 hour ventilation mode to perform regular ventilation,
Based on the ON operation of the lighting switch in the bathroom and the ON operation of the switch in the auto mode, the preliminary heating mode is started and the 24-hour ventilation is stopped or the ventilation amount is reduced in the bathroom by the 24-hour ventilation mode. ,
When the bather enters the bathroom, the preliminary heating mode is stopped and the bath heating mode is performed, and it is determined that the bather has left the bathroom based on an OFF operation of the bathroom lighting switch. Stop the bath heating mode and dry in the bathroom,
The bathroom air conditioner is characterized in that drying in the bathroom is performed by resuming 24-hour ventilation in the bathroom or increasing the ventilation amount in the 24-hour ventilation mode .

Images