JP2002228224A - Heater/ventilator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that since an air supply fan is disposed in parallel with the ceiling face of a bathroom such that the rotary shaft thereof becomes perpendicular to the ceiling face of the bathroom, an air outlet is provided on the air supply direction side of the fan and a damper for opening/ closing the air outlet is oscillatory, the body itself extends in parallel with the ceiling face to increase the size and since the opening face of ceiling increases correspondingly, a decoration frame covering the opening face also increases to deteriorate appearance. SOLUTION: The heater/ventilator comprises a body inserted into the opening in the ceiling and wall face of a water section space, means provided in the body and discharging the air sucked from a room in the water section space outdoors or supplying it into the room, a heater disposed in an air supply duct to the room, and a switching member for changing over air supply from the air supply means between the outdoors and the room wherein the heater/ ventilator is disposed to move on the outer circumference of the air supply means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating / ventilating apparatus for ventilating, heating, drying, etc., a water space.

[0002]

2. Description of the Related Art Heretofore, as a heating / ventilating apparatus of this type, for example, one described in Japanese Patent Application Laid-Open No. 9-126515 is known.

[0003] In this device, a single blower fan is provided in a main body in a bathroom, a heater is provided in an outlet, a damper is provided in the main body, and air blown out by the blower fan is discharged from the outlet and a vent. It is swingably attached to a branch position, a first position for discharging only from the ventilation port, and a second position for discharging only from the outlet.

[Problems to be solved by the invention]

[0004] However, in the above-described conventional configuration, the blower fan is arranged in parallel with the bathroom ceiling surface so that the rotation axis of the blower fan is perpendicular to the bathroom ceiling surface. The air outlet is provided on the air outlet direction side, and the damper for opening and closing the air outlet is swingably provided, so that the main body itself extends parallel to the ceiling surface and becomes large, and according to the main body, Since the opening surface of the ceiling becomes large and the decorative frame provided so as to cover the opening surface also becomes large, there has been a problem that the appearance is deteriorated.

Further, a diverting position for discharging the damper from the air outlet and the ventilation port, a first position for discharging the damper only from the ventilation port,
When switching to the second position for discharging only from the outlet, if the damper is switched while the fan is rotating at a high speed, there is a problem that the position of the damper shifts or cannot be switched. Further, in order to prevent the displacement of the damper, a large motor having a large torque enough to overcome the influence of the wind pressure is used, and there is a problem that the product becomes large.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a heating / ventilating apparatus having a highly reliable damper switching device while reducing the size of the apparatus body. It is in.

[0007]

Means for Solving the Problems and Action / Effect To attain the above object, the present invention provides an apparatus main body which is inserted into openings of ceilings and walls of a water surrounding space, and provided in the apparatus main body. Blower means for sucking air in the room in the water surrounding space and exhausting the air to the outside or blowing the air into the room; a heater disposed in a ventilation path to the room; and a blower from the blower means And an opening / closing member for switching between the outside and the inside of the room, and arranged so as to move on the outer periphery of the blowing means. The damper includes an opening / closing member and a motor for rotating the opening / closing member.

Therefore, according to this structure, since the opening / closing member is arranged to move on the outer periphery of the blower, the apparatus main body does not extend in parallel to the ceiling as in the related art, thereby preventing the apparatus from being enlarged. In addition, since the opening that opens to the ceiling is small, the decorative member provided to cover the opening can be made compact, and the appearance can be improved. Furthermore, since the blowing means and the blowing path are linearly arranged, there is no pressure loss due to the blowing path, and an efficient heating / ventilating apparatus can be provided.

Further, if a slit is provided in the side wall of the casing on the side where the motor is provided to allow the opening and closing member to be inserted and moved, the apparatus body can be made compact with a simple configuration. Can be.

Further, if the motor is constituted by a stepping motor, the opening and closing position of the opening and closing member can be finely adjusted. The opening and closing member can be moved to an optimal position to a position where drying is performed, and efficient drying can be performed. In addition, an angle detection sensor or the like is required to perform position control.For example, if a motor such as a DC motor is used, an angle sensor and a motor are required, and a placement space is required.However, a stepping motor requires no sensor. As a result, the size of the motor is reduced, and the size of the apparatus body can be reduced.

When the opening / closing member is moved, for example, in order to switch the blowing destination from the blowing means to the outdoors, a specified moving amount (number of pulses) is sent to the motor as a drive signal, and a reference position (origin position) is set. Will be switched based on the Therefore, as a method for detecting the reference position, a mechanical stopper is provided, a signal corresponding to the entire movement amount (number of pulses) of the opening / closing member is sent to the motor as a driving signal, and the opening / closing member is applied to the stopper to determine the reference position. I did it. According to this method, it is not necessary to separately provide a sensor or the like at the reference position, and the size and cost of the apparatus can be reduced.

Further, as a method of detecting the reference position, the motor is moved for a specified time, and the opening / closing member is brought into contact with the stopper to set the reference position. Therefore, even in this method, it is not necessary to separately provide a sensor or the like at the reference position, and the size and cost of the device can be reduced.

[0013] Further, after stopping each operation operation, the opening / closing member is stopped at a position which closes an air passage for discharging the air outdoors, so that the check valve normally provided in the exhaust duct can be changed. Therefore, a check valve is not required. Therefore, cost reduction can be achieved. Of course, for the purpose of ensuring further check performance, the above operation may be performed with a configuration provided with a check valve.

In addition, since the opening / closing member is stopped at a position that closes the air passage for discharging the indoors after each operation operation is stopped, it is possible to prevent moisture-containing air from condensing inside the apparatus and dropping the indoors. It is possible to do. Furthermore, it is also possible to configure the opening / closing member with a non-combustible material such as a metal and to evaporate the dew condensation water by energizing the heater.

In addition, after each operation stop, the opening / closing member is stopped at a position straddling the air path for discharging the air outdoors and the air path for discharging the air indoors, so that the air is discharged to the air path indoors or discharged indoors. The time for switching to the air path can be made in the same time, and each driving operation can be started in a short time, and the waiting time for the operation after pressing the driving switch can be reduced, so that it is possible to use the device without discomfort.

In the case where the mode is a mode in which the heater is energized while the opening / closing member is stopped in the air path for discharging to the outdoors, first, the opening / closing member is switched to the air path for discharging to the room, and And the heater was started. By doing so, heat generated from the heater does not rise to the fan side, so that it is not necessary to use a material having high heat resistance, so that the apparatus can be inexpensive.

Furthermore, by rotating the fan at a low speed, switching the opening and closing members, and energizing the heater, the same effect as described above can be obtained, and a fan whose startup time is slow (for example, an AC fan) Motor) can be used, and the cost of the product can be reduced.

Further, by starting the fan and the heater earlier, and switching the airflow path to discharge the opening / closing member into the room after a lapse of a predetermined time, that is, in a state where the heater is warmed to a certain extent, a cold wind comes out at the initial stage of the startup. Can be prevented, and the heating operation can be used comfortably with an inexpensive system.

Further, in the same manner as described above, the timing for switching the opening / closing member is determined by detecting whether or not the temperature of the heater has exceeded a predetermined value by a thermistor or the like, so that the temperature is always stable without being affected by the outside air temperature. Warm air can be generated from the beginning of operation.

After the fan is started, a specified time has passed.
By switching the opening / closing member, the sound generated when the opening / closing member is switched, the gear noise of the motor, and the like are eliminated by the wind noise of the fan, so that discomfort to the user can be reduced.

Further, as described above, if the opening / closing member is switched at the time when the rotation speed of the fan reaches the specified rotation speed after the fan is started, a stable device can be provided without the influence of variations at the start of the motor. Can be provided.

After the power supply to the heater is stopped, the fan 2 is turned on, and after a certain time elapses, the temperature of the heater is reduced. Since high-temperature hot air is not supplied to the opening / closing member, it is not necessary to use a thermistor or the like to prevent deformation of the resin member and to use an expensive material having high heat resistance, thereby making it possible to reduce the cost of the apparatus.

Further, similarly to the above, the temperature of the heater is detected by a thermistor or the like, and the opening / closing member is switched when the temperature becomes equal to or less than a specified value, thereby being influenced by the power supply time to the heater and the outside air temperature. Therefore, the switching member can be reliably switched without providing a highly reliable device.

Further, for example, when an abnormality such as a motor rotation speed abnormality or a motor lock is detected, the operation of the product is stopped and an LED or the like of a remote control is displayed to notify the user. By always stopping the opening / closing member at a position where the discharge passage to the outside is closed, a check valve in the exhaust duct becomes unnecessary, and the apparatus can be made inexpensive. Furthermore, even if the wind from the outside flows backward through the duct during the failure of the device, especially in a cold winter, it is possible to prevent the air from being discharged into the room and to prevent the cold.

As a method for confirming whether the opening / closing member is stopped at a predetermined position, there is a means using a motor with a sensor, but this increases the size and cost of the motor. Therefore, when a PTC heater is used as a heater, the fact that the characteristics of the current flowing to the heater is known based on the room temperature and the air flow is used. Therefore, if a current value corresponding to the air flow is flowing, it can be determined that the switching has been performed without abnormality. The room temperature is PTC
In the case of a heater, the current value changes depending on the ambient temperature.
This is necessary for temperature correction. As described above, if this detection method is used, the device can be made compact, and a highly reliable device can be provided with an inexpensive system.

When a drive means for driving the heater, for example, a relay or the like breaks down while being energized due to welding of a contact or the like, the opening / closing member is switched to a discharge air path to the room, and The wind is discharged into the room, so that not only an abnormality display of the remote controller but also the user can be quickly notified of the abnormality by the operation. Moreover,
It is possible to prevent the opening / closing member and fan on the upper surface from being thermally deformed by the hot air from the heater, and to prevent the influence on other than the failed member, and to provide a more secure system. Become.

[0027]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a sectional view showing an example in which a heating / ventilating apparatus according to the present invention is installed on a ceiling of a bathroom,
2 is a sectional view taken along line XX of FIG. 1, FIG. 8 is a conventional example of an exhaust duct, FIG. 3 is a side view showing a side surface of the apparatus main body, and FIG. 4 is an operation unit.

As shown in FIGS. 1 to 4 and 8, the heating / ventilating apparatus A of the present invention comprises an opening 50 in a ceiling 50 of a bathroom B.
a main body 1 inserted into the main body 1 and the main body 1
And an air blower 4 for sucking air in the bathroom B and exhausting the air to the outside or blowing the air into the bathroom B through an exhaust duct 60, and a heater 5 disposed in an air passage 6 into the bathroom B. An opening / closing member 10 for switching the destination of the air from the blower 4 to the outside or in the bathroom B; and a control unit 80 for controlling the operations of the blower 4, the heater 5, and the opening / closing member 10;
The control unit includes an operation unit 70 to be described later for transmitting an operation command to the control unit.

The opening / closing member 10 is moved by a motor 13 which is a driving means for driving an inside of a slit 12 disposed concentrically with the impeller 2, thereby the blower 4
It is configured to switch the air path from the air outlet to the outdoor or indoor.

Further, the opening / closing member 10 is formed of a synthetic resin such as PBT resin having excellent heat resistance or metal.
The deformation and the like of the opening / closing member 10 due to the heat of the heater 5 can be avoided. Further, a damper presser 33 is provided so as to sandwich the arm portion 10a of the opening / closing member 10 connected to the motor shaft 13a of the motor 13, so that the arm portion 10a can be removed from or displaced from the motor shaft 13a of the motor 13. I try to prevent it. Since the damper retainer 33 may be provided in contact with the opening / closing member 10 made of PBT resin, the damper retainer 33 may be made of a resin having excellent slidability such as POM.

Next, the switching position of the opening / closing member 10 will be described with reference to FIGS. The drawing shown in FIG. 5 will be described. In this configuration, the reference position of the opening and closing member 10 and the stop position during the heating operation are the same, but the stop angle may be different. Hereinafter, the description will be made on the assumption that the angles are the same. An example of a method of confirming the reference position of the opening / closing member 10 will be described with reference to FIGS. 1 and 5. In the present embodiment, as a configuration in which the reference position can be confirmed with a simple configuration without using a sensor or the like, the casing 8 is integrated with the casing 8 on the side wall 8b of the casing 8 which is a path along which the opening / closing member 10 moves. A stopper 90 serving as a projection is provided.
When the opening / closing member 10 moves by an angle by the stopper 90, the opening / closing member 10 hits the stopper 90, and the opening / closing member 10 does not move any further even if the motor 13 as the driving means is continuously operated.

Next, when the reference position is detected, the opening / closing member 10 is rotated counterclockwise by a specified angle (number of pulses) or a specified time by a motor 13 as a driving means, and is rotated until it reaches a stopper 90. To stop. The stop position is determined as the reference position, and the air path is switched. If the reference position is detected when the power is turned on or when a power failure occurs, the position does not shift.

Further, this stop position is the same during the heating operation. During the heating operation, the fan and the heater are activated, and the air in the room is sucked through the suction port 19 of the decorative cover.
The temperature is raised by the heater 5 through the fan inlet 14 and is blown into the room through the outlet 20 to raise the room temperature while circulating room air.

Referring to the drawing shown in FIG. This drawing is a view showing a state in which the opening / closing member 10 is rotated clockwise by a specified angle (number of pulses) by a motor 13 as a driving means from a reference position where a stopper 90 is present and stopped. This position is a standby position to stop after the end of each driving operation, and stops at a position to block the exhaust air path to the outdoors. That is, it replaces the check valve conventionally provided in the exhaust duct.

Referring to the drawing shown in FIG. This drawing is a view showing a state in which the opening / closing member 10 is rotated clockwise by a specified angle (number of pulses) by a motor 13 as a driving means from a reference position where a stopper 90 is present and stopped. This stop position is a state during the ventilation operation, in which the fan is started and the indoor air is sucked through the suction port 19 of the decorative cover, passed through the suction port 14 of the fan, and discharged from the exhaust port 16 to the outside. It is.

FIG. 4 is a block diagram showing the operation unit 70.

As shown in FIG. 4, the operation unit 70 is provided with an operation stop switch 71, a ventilation operation switch 72, and a heating operation switch 73. The operation unit 70
Communicates with the control unit 80 wirelessly or by wire.

In the above configuration, the operation of the heating / ventilating apparatus A will be described below.

When performing the ventilation operation in the bathroom B, when the ventilation operation switch 72 of the operation unit 70 is turned on, a command signal of the ventilation operation is input to the control unit 80. Control unit 80
Receives this command signal, and outputs it to drive the blower 4 and the opening / closing member 10. Thereby, the opening and closing member 10
Rotationally moves to a position where the air passage 6 is closed, and the air containing moisture in the bathroom B is sucked through the suction port 19 of the decorative member 18 and the casing 8 through the suction port 14 of the casing 8.
Into the casing 8 and through the communication port 11 of the casing 8 to the exhaust port 16.
The air in the bathroom B is ventilated to the outside through the exhaust duct 65 through the exhaust passage 65.

When performing the heating operation in the bathroom B,
When the heating operation switch 73 of the operation unit 70 is turned on,
A command signal for a heating operation is input to control unit 80. When receiving the command signal, the control unit 80 drives the blower 4 and the opening / closing member 10 and outputs the heater 5 to energize it. As a result, the opening / closing member 10 rotates to the position where the exhaust port 16 is closed, and the air containing moisture in the bathroom B is sucked from the suction port 19 of the decorative member 18 and the casing 8
Flows into the casing 8 from the suction port 14 of the casing 8, passes through the communication port 11 of the casing 8, passes through the air passage 6, is heated by the heater 5, and is blown out of the outlet B 20 of the decorative member 18 into the bathroom B. Thus, the heating in the bathroom B is performed.

The rotation speed of the motor 3 of the blower 4 is
The heating performance may be varied by switching to high-speed rotation or low-speed rotation.

The above description relates only to one embodiment of the present invention, and does not mean that the present invention is limited only to the above content. For example, the apparatus main body 1 is installed on the ceiling 50 of the bathroom B. However, the present invention is not limited to this, and the apparatus main body 1 may be installed on a ceiling or wall surface of a dressing room, a toilet, or the like, which is a narrow space where heat, moisture, smell, and the like are likely to be trapped. It may be.

Further, the opening / closing member 10 is controlled to move to a position where the ventilation path 6 and the exhaust port 16 communicate with each other so that the humidity in the bathroom B is exhausted to the outside and the warm air is supplied into the bathroom B. Thus, the clothes dried in the bathroom B may be dried. Further, the clothes may be dried while switching between the operation of exhausting the moisture in the bathroom B to the outside and the operation of supplying warm air into the bathroom B at regular intervals or according to conditions such as the temperature and humidity in the bathroom B. Good thing.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an example in which a heating / ventilating apparatus according to the present invention is installed on a ceiling of a bathroom.

FIG. 2 is a sectional view taken along line XX of FIG.

FIG. 3 is a side view showing a side surface of the apparatus main body.

FIG. 4 is a configuration diagram illustrating an operation unit.

FIG. 5 is a diagram illustrating a state where the damper is stopped at a reference position (during a heating operation).

FIG. 6 is a diagram illustrating a state in which the damper is stopped at a position where the wind path to the outside is closed.

FIG. 7 is a diagram illustrating a state in which the damper is stopped at a position where the air path to the room is closed.

FIG. 8 is a sectional view showing an example of a conventional exhaust duct.

[Explanation of symbols]

 A: Heating / ventilating device B: Bathroom 1: Device body 2: Impeller 3: Motor 4: Blower (blowing means) 5: Heater 5a: Terminal section 6: Ventilation path 7: Rotating shaft 8: Casing 8a: Peripheral wall 8b ... Side wall 9 Damper 10 Opening / closing member 10a Arm 11 Communication port 12 Slit 13 Motor 14 Suction port 15 Vent 16 Exhaust port 17 Barrier 18 Cosmetic member 19 Suction port 20 Outlet 21 ... Blow-out direction variable members 22, 25 ... Mounting holes 23,26 ... Mounting members 24,27 ... Drop prevention member 28 ... Partition wall 29 ... Separation chamber 30 ... Mounting part 50 ... Ceiling 50a ... Opening 55 ... Spacer 60 ... Duct connecting member 65 exhaust duct 80 control unit 81 control box

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3L060 AA02 AA05 AA08 CC01 CC08 CC19 DD08 EE01

Claims (18)

[Claims] 1. An apparatus main body inserted and provided in an opening of a ceiling and a wall surface of a water surrounding space, and provided in the device main body to suck air in a room of the water surrounding space and exhaust air to the outside or A blower for blowing air indoors, a heater disposed in a blower path to the room, and an opening / closing member for switching a blowing destination from the blower to the outdoors or the room, A heating / ventilating device characterized by moving around the fan. 2. The heating / ventilating apparatus according to claim 1, wherein a stepping motor is used as a motor for driving the opening / closing member. 3. The method according to claim 1, wherein when detecting the reference position of the opening / closing member, the motor is driven by a predetermined moving amount so as to hit the stopper to set the reference position. The heating and ventilation device as described. 4. The heating system according to claim 1, wherein when detecting the reference position of the opening / closing member, a motor is driven for a predetermined time so as to hit a stopper to set the reference position.・ Ventilation equipment. 5. The heating / ventilating apparatus according to claim 1, wherein the opening / closing member stops at a position that closes an air passage that is discharged outdoors when the operation is stopped. 6. The heating / ventilating apparatus according to claim 1, wherein the opening / closing member stops at a position for closing an air passage exhausted into the room when the operation is stopped. 7. The heating / ventilating apparatus according to claim 1, wherein the opening / closing member stops at a position across an air passage that discharges the air outdoors and indoors when the operation is stopped. 8. The heating / ventilating apparatus according to claim 1, wherein the opening / closing member starts a fan and a heater after switching an air path in a direction to discharge the air into the room. . 9. The heating / ventilating apparatus according to claim 1, wherein the opening / closing member switches the rotation speed of the fan to a low speed, and then switches the opening / closing member to energize the heater. . 10. The heating / ventilating apparatus according to claim 1, wherein said opening / closing member is energized to a fan and a heater and switched after a lapse of a predetermined time. 11. The heating / ventilating apparatus according to claim 1, wherein said opening / closing member is energized to a fan and a heater, and is switched when a heater temperature reaches a predetermined value or more. 12. The heating / ventilating apparatus according to claim 1, wherein the opening / closing member switches after a predetermined time elapses after the fan is activated, and energizes the heater. 13. The heating / ventilating apparatus according to claim 1, wherein the opening / closing member switches when the fan reaches a specified number of revolutions after the fan is started, and energizes the heater. . 14. The heating / ventilating apparatus according to claim 1, wherein the opening / closing member is switched after a predetermined time has elapsed after the power supply to the heater is stopped. 15. The heating / ventilating apparatus according to claim 1, wherein the opening / closing member is switched when the heater temperature becomes equal to or lower than a predetermined value after the power supply to the heater is stopped. 16. The heating / ventilating apparatus according to claim 1, wherein the opening / closing member is switched to a position for blocking an air passage to outside air when an abnormality occurs. 17. The heating / ventilating apparatus according to claim 1, wherein it is determined whether the opening / closing member is stopped at a predetermined position based on a room temperature and a heater current value. 18. When the drive means for driving the heater fails while power is being supplied, the opening / closing member is switched to a position where warm air flows into the room, and the fan is rotated. The heating / ventilating device according to claim 1.