JP3500550B2 - Bathroom ventilation dryer - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathroom ventilation dryer for ventilating and drying a bathroom. 2. Description of the Related Art Various types of bathroom ventilation dryers are known. For example, as disclosed in JP-A-49-43254, a bathroom ventilation dryer in which a blower, a heater, and a damper are attached to a main body having an inlet, an outlet, and an outlet is known. [0003] In this bathroom ventilation dryer, the air in the bathroom is discharged to the outside through the ventilation port by driving the blower with the blower outlet closed with the damper, so that the bathroom can be ventilated. By driving the blower with the air outlet opened with the damper, the air in the bathroom is diverted to the air outlet and the ventilation port and discharged, so that cool air can be sent into the bathroom.
If electricity is supplied to the heater in the above-described state, the bathroom is dried and the bathroom can be used as a drying room. Further, as disclosed in Japanese Utility Model Laid-Open Publication No. 3-34497, there is known an apparatus in which a blower fan rotated by a fan motor, a heater, and a damper are provided in a main body having an inlet, an outlet, and a vent. ing. In this bathroom ventilation dryer, if the blower is rotated by a fan motor in a state where the air outlet is closed and the ventilation opening is opened by a damper, the air in the bathroom can be exhausted to the outside to ventilate the bathroom. . By energizing the heater and rotating the blower fan by the fan motor with the vent opening closed and the ventilation opening closed by the damper, the air in the bathroom can be heated and sent back to the bathroom to heat the bathroom. As disclosed in Japanese Utility Model Publication No. 7-22231, there is known a bathroom ventilation / dryer provided with a blower fan, a ventilation fan, and a heater in a main body having a suction port, an air outlet, and a ventilation port. I have. [0007] In this bathroom ventilation dryer, the air in the bathroom can be circulated by the blower fan, and a part of the air in the bathroom can be exhausted to the outside by the ventilation fan. It has four functions: drying in the bathroom, heating in the bathroom, ventilation in the bathroom, and sending cool air into the bathroom, based on the combination of stopping and energizing the heater. [0008] Japanese Patent Laid-Open No. 49-4325
In the case of the first bathroom ventilation dryer disclosed in Japanese Patent Publication No. 4 (1999) -1994, the suction port and the ventilation port are always in communication, and when the blower is driven by energizing the heater with the blower opening opened by the damper, A portion of the air in the bathroom is heated by the heater and sent into the bathroom, and at the same time, a portion of the air in the bathroom is exhausted from the ventilation openings. Can be dried, and if the heater is not energized, air can be circulated in the bathroom while ventilating to send cool air into the bathroom. However, since this bathroom ventilation dryer always discharges a part of the air in the bathroom to the outside, a part of the air in the bathroom is discharged to the outside even when heating the bathroom in winter or the like. The inside cannot be heated efficiently. A second bathroom ventilation dryer disclosed in Japanese Utility Model Laid-Open Publication No. 3-34497 is one in which one of an air outlet and a ventilation port is closed and the other is opened to ventilate or heat the air. Since the air cannot be diverted to the outside and discharged, the bathroom cannot be dried by heating while ventilating the bathroom, and the air cannot be circulated into the bathroom while ventilating to send cool air into the bathroom. In order to dry the interior of the bathroom with the above-mentioned second bathroom ventilation dryer, for example, after heating is performed for 50 minutes, ventilation is performed for 10 minutes, and the air in the bathroom having a high humidity is discharged to the outside. This operation is repeated, so that the drying time becomes long and the bathroom cannot be efficiently dried, and the operation control becomes complicated. [0011] The third bathroom ventilation dryer disclosed in Japanese Utility Model Publication No. 7-22231 is provided with a fan for ventilation, a ventilation motor and a ventilation fan, and a ventilation motor.
Large, heavy and expensive. Accordingly, an object of the present invention is to provide a bathroom ventilation dryer capable of solving the above-mentioned problems. According to the present invention, there is provided a main body A having a suction port 6, an air outlet 7, a ventilation port 8, an air passage 20 opened to the ventilation port 8 and the air outlet 7, and an inside of the main body A. And a flow dividing plate 21 that divides the air path 20 into a first air path 22 and a second air path 23. A fan 17 for blowing air toward the passages 22 and 23; an electric motor 18 for rotating the fan 17; a heater 15 provided at the outlet 7 of the main body A to generate heat when energized; A damper 30 provided in the main body A to move to a first position and a second position; a shutter 34 provided in the main body A to move to a position for opening and closing the first air passage 22; And a holding mechanism 36 for holding the damper 30 in the closed position. When the position is open a second air passage 23 to the air outlet 7, and the second air passage 23 and closes the ventilation opening 8, the damper 30 is when the second position vent the second air passage 23 8
And the second air passage 23 and the air outlet 7 are closed, the shutter 34 is always in a closed position, and is configured to be in an open position by wind pressure, and the holding mechanism 36 holds the shutter 34 by an electric signal. A bathroom ventilation dryer characterized in that it can be switched to a release state. Operation When the blower fan 17 is rotated with the damper 30 in the first position, the holding mechanism 36 in the holding released state, and the heater 15 generating heat, the air in the bathroom is sucked in.
A part of the air pushes and opens the shutter 34 so that the first air path 2
2 and is exhausted to the outside through the ventilation port 8 and the remaining air is heated by the heater 15 through the second air passage 23 and blows out into the bathroom. The exhausted air can be discharged to the outside to efficiently dry the bathroom. When the blower fan 17 is rotated with the damper 30 in the first position, the shutter 34 held in the closed position by the holding mechanism 36 and the heater 15 being heated, the first air path 2
Since the shutter 2 is closed by the shutter 34, the air in the bathroom is sucked in, and the entire amount of the air flows through the second air passage 23, is heated by the heater 15, and is blown out of the outlet 7 into the bathroom. Can be heated efficiently. Second damper 30
Position, and the holding mechanism 36 is set to the holding release state to set the heater 1
When the blower fan 17 is rotated in a state in which the heat is not generated from the air outlet 5, the air in the bathroom is sucked in because the outlet 7 is closed, and the whole amount passes through the first and second air passages 22 and 23 from the ventilation port 8. Since it is discharged outside, the bathroom can be ventilated efficiently. When the blower fan 17 is rotated with the damper 30 in the first position, the holding mechanism 36 in the holding release state and the heater 15 not generating heat, the air in the bathroom is sucked in, and a part of the air pushes the shutter 34 open. Since the air is exhausted to the outside from the ventilation port 8 and the remaining air is blown out into the bathroom from the outlet 7, the air in the bathroom can be circulated and the cool air can be sent into the bathroom while ventilating. It is possible to make the bathroom user comfortable. As described above, the bathroom can be dried, heated and ventilated, cool air can be blown into the bathroom, and only one blower fan 17 and one electric motor 18 are used.
It is a small, lightweight and inexpensive bathroom ventilation dryer. Further, the damper 30 merely moves to the first position and the second position, and the control of the damper 30 becomes easy. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1, 2 and 3,
The main body A is configured as follows. The lower surface is opened by a pair of opposed first side plates 1, a pair of opposed second side plates 2, and a top plate 3 to form a box body 4. A partition plate 5 is attached to the lower part of the inner surface of the box 4 in parallel with the top plate 3. This partition plate 5 has an inlet 6 called a bell mouth.
And an outlet 7 are formed. The one first side plate 1 has a ventilation port 8 formed therein. As described above, the main body A is a box-shaped body, and has a suction port 6 and a discharge port 7 on its lower surface, and a ventilation port 8 on its side surface. The lower edges of the first side plate 1 and the second side plate 2 are bent to form mounting pieces 1a, 2a. As shown in FIG. 1, each of the mounting pieces 1a and 2a is fixed to a mounting member 10 for mounting a ceiling 9 of a bathroom with a wood screw 11, and the main body A is mounted on the ceiling 9 of the bathroom. Thereby, the inlet 6 and the outlet 7 are open in the bathroom. A decorative frame 12 is mounted on the ceiling 9 of the bathroom, and the decorative frame 12 prevents the main body A from being seen from the bathroom. The decorative frame 12 is provided with a suction ventilation section 13 facing the suction port 6 and a blowing ventilation section 14 facing the blowout port 7. A heater 15 that generates heat when energized is attached to the outlet of the main body A. A blower 16 is attached to the main body A. The blower 16 includes a blower fan 17 such as a sirocco fan, an electric motor 18, and a sirocco fan casing 19. The blower fan 17 faces the suction port 6 and the electric motor 18 is mounted on the top plate 3. By driving the electric motor 18, the blower fan 17 rotates to suck air from the suction port 6, and the suction port 7 and the ventilation port 8
To be ejected. The casing 19 has a substantially semicircular portion 19 provided along the blower fan 17 as shown in FIG.
a, and a linear portion 19b protruding to the ventilation opening 8 continuously with the substantially semicircular portion 19a. The casing 19, one of the second side plates 2 and the top plate 3 constitute an air passage 20 of the blower fan 17. The outlet 7 and the ventilation opening 8 are open to the air passage 20. A diversion plate 21 is provided in the air passage 20 in parallel with the top plate 3. Due to the flow dividing plate 21, the air path 20
The air passage 22 and the second air passage 23 are vertically divided into two parts.
The flow dividing plate 21 includes one second side plate 2 and the casing 19.
Are mounted over the linear portion 19b. A notch 3a is formed in a portion between the one second side plate 2 and the linear portion 19b of the casing 19 at a portion of the top plate 3 near the ventilation opening 8, and a cutout 3a is formed.
A portion of the side plate 2 and the straight portion 19 b near the ventilation opening 8 is inclined upward, and an auxiliary plate 24 is attached between the inclined portion and the top plate 3. As a result, the vertical dimension of the ventilation port 8 is increased to be substantially the same as the horizontal dimension. The ventilation opening 8
A duct joint 25 is attached to an outer opening edge of the duct, and a duct 26 is connected to the duct joint 25. In this way, the opening area of the ventilation port 8 can be increased without increasing the overall height of the main body A. The one second side plate 2 and the casing 19
(The second air path 2 of the air path 20).
In 3), a damper 30 is mounted on a damper shaft 31 so as to be vertically swingable. The damper shaft 31 is provided with a speed reducer 32
, And is rotated by the electric motor 33. The damper 30 swings between a first position a in contact with the flow dividing plate 21 shown by a solid line in FIG. 1 and a second position b in contact with the partition plate 5 shown by a two-dot chain line. For example, the electric motor 3
Reference numeral 3 denotes a pulse motor, and when the pulse motor is rotated by a set number of rotations, the damper shaft 31 rotates by a predetermined rotation angle to swing the damper 30 to each of the above positions and stop. In addition, it is assumed that a reduction gear is incorporated in the synchronous motor, and the damper 30 is rocked to each of the front positions and stopped by using a motor incorporating position detection and a lock mechanism at three angles of the output shaft. Is also good. When the damper 30 is at the first position a, it comes into contact with the flow dividing plate 21 to close the second air passage 23 and the ventilation port 8, so that the second
The air passage 23 and the outlet 7 are open. When the damper 30 is at the second position b, the second air passage 23 is in contact with the partition plate 5 and the ventilation opening 8 is formed.
And the second air passage 23 and the outlet 7 are closed. A shutter 34 for opening and closing the first air passage 22
Is provided. The shutter shaft 35 of the shutter 34 is rotatably supported over the one second side plate 2 and the linear portion 19b of the casing 19. Thereby, the shutter 3
4 is rotated by its own weight to the vertical position shown by the solid line in FIG. 4 to close the first air passage 22, and is rotated upward by the wind pressure to open the first air passage 22 as shown by the two-dot chain line in FIG. I do. That is, the shutter 34 is movable between the closed position and the open position. The top plate 3 is provided with a holding mechanism 36 for preventing the shutter 34 from rotating upward and holding the shutter 34 in a vertical position. The holding mechanism 36 is supported by the top plate 3 so as to be vertically swingable and swings downward by its own weight.
A solenoid 38 that swings the stopper 37 upward is provided. When the solenoid 38 is not energized, the stopper 37 is at the lower position as shown by the solid line in FIG. 4, and the protruding piece 37 a projects into the first air passage 22 from the opening 39 of the top plate 3 and faces the upper portion 34 a of the shutter 34. I do. As described above, when the stopper 37 is at the lower position, the upper portion 34a of the shutter 34 is
Even if the wind pressure acts by interfering with the projection 37a of the shutter
Will not swing upward. When the solenoid 38 is energized and the stopper 37 is swung upward to the upper position indicated by the two-dot chain line in FIG. 4, the projecting piece 37 a of the stopper 37 separates from the upper part 34 a of the shutter 34 and the shutter 34 moves upward when wind pressure acts. Rocks. The heater 15, the electric motor 18 of the blower 16, the electric motor 33 of the damper 30, and the solenoid 38 of the holding mechanism 36 are controlled to be energized by a control unit 40 as shown in FIG. Each operation mode signal is input from 41. This operation switch 4
1 includes a drying switch 42, a heating switch 43, a ventilation switch 44, a cool air switch 45, and a stop switch 46. Next, the operation will be described. (Operation for Drying the Bathroom) The drying switch 42 is operated to input a drying operation mode signal to the control unit 40. Control unit 4
0, the heater 15 is energized, the electric motor 18 is energized to rotate the blower fan 17, the electric motor 33 is energized to set the damper 30 to the first position a, and the solenoid 38 is energized to move the stopper 37 to the upper position. And As a result, the air in the bathroom is sucked from the suction port 6 and discharged to the first and second air passages 22 and 23, and the air in the first air passage 22 swings the shutter 34 upward to ventilate the air. 8, the air with high humidity in the bathroom is discharged to the outside. The air in the second air passage 23 is blown out of the outlet 7 into the bathroom through the heater 15. At this time, the air blown into the bathroom is heated by the heater 15. Therefore, the high humidity air in the bathroom can be discharged to the outside while heating the bathroom, and the bathroom can be efficiently dried, and the bathroom can be used as a drying room. (Operation for Heating the Bathroom) Heating Switch 4
3 to input a heating operation mode signal to the control unit 40. The heater 15 is energized by the control unit 40 and the electric motor 1
8 to rotate the fan 17 for blowing air,
3 to set the damper 30 to the first position a. on the other hand,
The stopper 37 is set to the lower position without energizing the solenoid 38 of the holding mechanism 36. As a result, the air in the bathroom is sucked in from the suction port 6 and discharged to the first and second air passages 22 and 23. However, since the stopper 37 of the holding mechanism 36 is at the lower position, the shutter 34 is provided. Does not swing upward due to wind pressure. For this reason, all the air sucked in is blown out of the second air passage 23 into the bathroom through the heater 15 from the outlet 7. At this time, the air blown into the bathroom is heated by the heater 15. Therefore, the bathroom can be efficiently heated. (Operation for ventilating the bathroom) Ventilation switch 4
4 is operated to input a ventilation operation mode signal to the control unit 40. The control unit 40 energizes the electric motor 18 to rotate the blower fan 17, energizes the electric motor 33 to set the damper 30 to the second position b, and the solenoid 38 of the holding mechanism 36.
And the stopper 37 is set to the upper position. Heater 15
Is not energized. As a result, the air in the bathroom is sucked from the suction port 6 and discharged to the first and second air passages 22 and 23, while
The air passage 23 and the outlet 7 are closed, and the second air passage 23 is open to the ventilation opening 8. Further, the shutter 34 swings upward by the wind pressure, and the first air passage 22 is opened. For this reason, all the air sucked in is discharged to the outside through the ventilation port 8. Therefore, the bathroom can be efficiently ventilated. In this case, blower 1
The electric motor 18 may be switched between high speed and low speed to switch between two types of ventilation, strong and weak. (Operation of sending cool air into the bathroom) The cool air switch 45 is operated to input a cool air operation mode signal to the control unit 40. The control unit 40 energizes the electric motor 18 to rotate the blower fan 17, energizes the electric motor 33 to set the damper 30 to the first position a, and energizes the solenoid 38 to set the stopper 37 to the upper position. The heater 15 is not energized. As a result, the air in the bathroom is sucked from the suction port 6 and discharged to the first and second air passages 22 and 23, and the air in the first air passage 22 swings the shutter 34 upward to ventilate the air. 8 to the outside. The air in the second air passage 23 is blown out of the outlet 7 into the bathroom. Therefore, the air in the bathroom can be circulated while ventilating, and cool air can be sent into the bathroom, so that the bathroom in summer can be made comfortable for the user of the bathroom. The operation in each of the above operation modes is stopped by operating the stop switch 46 and inputting a stop signal to the control unit 40. With the damper 30 in the first position, the holding mechanism 36
When the blower fan 17 is rotated in a state where the heater 15 is heated while the heater 15 is heated, the air in the bathroom is sucked in, and a part of the air is pushed and opened by the shutter 34 to pass through the first air passage 22 for ventilation. While being discharged from the mouth 8 to the outside,
The remaining air is heated by the heater 15 through the second air passage 23 and blows out into the bathroom. Therefore, while the interior of the bathroom is heated, the humidity in the bathroom becomes high, and the air is discharged to the outside, so that the interior of the bathroom can be dried efficiently. With the damper 30 in the first position,
When the blower fan 17 is rotated while the shutter 34 is held at the closed position by the holding mechanism 36 and the heater 15 is heated, the air in the bathroom is sucked in because the first air passage 22 is closed, and the air is blown. Flows through the second air passage 23, is heated by the heater 15, and is blown out of the outlet 7 into the bathroom. Therefore, the bathroom can be efficiently heated. With the damper 30 in the second position and the holding mechanism 36 in the holding released state, the heater 1
When the blower fan 17 is rotated in a state in which the heat is not generated from the air outlet 5, the air in the bathroom is sucked in because the outlet 7 is closed, and the whole amount passes through the first and second air passages 22 and 23 from the ventilation port 8. Discharge to the outside. Therefore, the bathroom can be efficiently ventilated. With the damper 30 in the first position, the holding mechanism 3
When the blower fan 17 is rotated in a state in which the heater 6 is released and the heater 15 is not heated, the air in the bathroom is sucked in, a part of the air is discharged to the outside through the ventilation port 8, and the remaining air is blown out. Blow out into the bathroom from 7. Therefore,
Air can be circulated into the bathroom while ventilating, and cool air can be blown into the bathroom, so that the bathroom in summer can be made comfortable for the user of the bathroom. As described above, the bathroom can be dried, heated, and ventilated, and the cool air can be blown into the bathroom.
And electric motor 18 only,
It becomes a small and inexpensive bathroom ventilation dryer. Further, the damper 30 merely moves to the first position and the second position, and the control of the damper 30 becomes easy.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view of an attached state showing an embodiment of the present invention. FIG. 2 is a sectional view taken along line BB of FIG. FIG. 3 is a perspective view of a bathroom ventilation dryer. FIG. 4 is an enlarged view of an opening / closing section of a discharge air passage. FIG. 5 is a control circuit diagram. [Description of Signs] A: Main body, 4: Box body, 5: Partition plate, 6: Suction port, 7: Blow-off port, 8: Ventilation port, 15: Heater, 17: Fan for blowing, 18: Electric motor, 20 ... air passage, 21 ... diverting plate, 2
2 ... first air path, 23 ... second air path, 30 ... damper, 34
... Shutter, 36 ... Holding mechanism, 37 ... Stopper, 38 ...
solenoid.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F24F ^7/ 08-7/10

Claims (1)

(57) Claims 1. A main body A having an inlet 6, an outlet 7, a ventilation port 8, and an air passage 20 opened to the ventilation port 8 and the outlet 7.
A flow dividing plate 21 provided in the main body A to divide the air passage 20 into a first air passage 22 and a second air passage 23; A fan 17 for blowing air toward the first and second air passages 22 and 23; an electric motor 18 for rotating the fan 17 for blowing; A damper 30 provided in the main body A to move to a first position and a second position; a shutter provided in the main body A to move to a position to open and close the first air passage 22 34, and a holding mechanism 36 for holding the shutter 34 in the closed position. When the damper 30 is in the first position, the second air passage 23 is opened to the outlet 7, and the second air passage 23 and the ventilation port are provided. Close 8,
When the damper 30 is in the second position, the second air passage 23 is opened to the ventilation opening 8 and the second air passage 23 and the air outlet 7 are closed. The shutter 34 is always in the closed position, and is opened by the wind pressure. A bathroom ventilation dryer, wherein the holding mechanism 36 can be switched to a state in which the holding of the shutter 34 is released by an electric signal.