JPH0968324A - Ventilator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the durability of a ventilator by providing a mobile blade allowed to adjust the state of ventilation by oscillation in an air path through which a ventilation is made by the fan to decrease the amount of the air sent by the fan or stop the fan when the mobile blade is driven to oscillate. SOLUTION: Bath room heating equipment has a drying/heating device A mounted on the side of the ceiling of a bath room B to heat or dry the inside of the bath room B. The drying/heating device A has a casing 3 having a suction port 1 and a blowoff port 2 and an air path 9 through a ventilation is made by a circulation fan 7 and a damper 8 for adjusting the amount of air to regulate the state of ventilation are arranged in the casing 3. The damper 8 is supported with a cantilever attitude and has a mobile blade 8a to alter the distribution ratio of the degree of ventilation to a heating air path 9a and an exhaust path 9b from the air path 9 by oscillation at a branch part in the air path 9. When the mobile blade 8a is driven to oscillate, the amount of air sent by the circulation fan 7 is decreased or the circulation fan 7 is stopped to keep an excessive load from working on the mobile blade 8a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation passage ventilated by a blower, a movable vane supported in a cantilevered posture and capable of adjusting a ventilation state by swinging in the ventilation passage, and its movable portion. The present invention relates to a ventilation device provided with drive means for driving and swinging blades, and control means for controlling the operation of the blower and the operation of the drive means.

[0002]

2. Description of the Related Art In a conventional ventilation device, a movable blade supported in a cantilever posture is driven and swung in a ventilation passage while the ventilation amount of a blower is maintained at a desired amount to adjust the ventilation state. There is.

[0003]

Therefore, when the movable blade is driven and rocked against wind pressure to adjust the ventilation state, an excessive load is generated in the drive means for driving and rocking the movable blade. In addition to being easy, there is a drawback that due to the wind pressure acting on the movable blade, an excessive load is easily generated on the movable blade. In addition, when the movable blade is driven and rocked against the wind pressure to adjust the ventilation state, the movable blade is pushed by the wind pressure and rapidly rocks, which easily causes an impact sound. The present invention has been made in view of the above circumstances, and an object thereof is to improve the durability of a ventilation device. Another object is to make it difficult for an excessive load to be generated in the drive means and the movable blade when the movable blade is driven and rocked against the wind pressure. Another object is to make it difficult to generate an impact sound due to a sudden swing of the movable blade when the movable blade is driven and rocked without countering the wind pressure.

[0004]

A ventilation device according to a first aspect of the invention is supported in a cantilevered manner with a ventilation passage ventilated by a blower, and the ventilation state can be adjusted by swinging in the ventilation passage. A movable blade, a drive means for driving and swinging the movable blade, and a control means for controlling the operation of the blower and the operation of the drive means, wherein the control means comprises: The blower is configured so as to control the operation of the blower so as to reduce the blower amount of the blower or stop the blower when the movable blade is driven and swung. The movable blade can be smoothly driven and swung in a state in which the ventilation is stopped, and the durability of the ventilation device can be improved.

In the ventilation device according to a second aspect of the present invention, the control means reduces the amount of air blown by the blower or stops the blower when the movable blade is driven and oscillated in a direction against the wind pressure. Since it is configured to control the operation of the blower, an excessive load is unlikely to be generated in the driving means when the movable blade is driven and rocked against the wind pressure,
Excessive load is unlikely to occur on the movable wings.

In the ventilation device according to a third aspect of the present invention, the control means reduces the amount of air blown by the blower or stops the blower when the movable blade is driven and oscillated in a direction not against the wind pressure. Since it is configured to control the operation of the blower, when the movable blade is driven and rocked without countering the wind pressure, it is difficult for the movable blade to be pushed by the wind pressure, and the impact sound due to the rapid rocking of the movable blade is generated. Is less likely to occur.

According to a fourth aspect of the present invention, in the ventilation device, the ventilation passage is branched into a heating air passage and an exhaust air passage, and an inlet of the ventilation passage and an outlet of the heating air passage are communicated with each other in a bathroom, so that the exhaust air is exhausted. The outlet of the passage is communicated with the outside of the bathroom, the blower is arranged so as to ventilate the air in the bathroom to the ventilation passage, and the movable blade is driven to swing from the ventilation passage. Since the distribution ratio of the ventilation amount to the heating air passage and the exhaust air passage is provided so as to be changeable, the ventilation amount circulating through the ventilation passage, the heating air passage, and the bathroom, and the exhaust air passage. The humidity can be adjusted while heating the inside of the bathroom by adjusting the amount of ventilation to be exhausted.

According to a fifth aspect of the present invention, there is provided a ventilation device, wherein the movable blade is disposed so as to be driven and rocked on a side closer to a ventilation direction than a rocking axis of the movable blade, and an end of a rocking range of the movable blade. At the position, since the support means for supporting the movable blade against the wind pressure is provided, the movable blade is moved to the support means side with respect to the movable blade that is swung to the end position of the moving range by the wind pressure. It acts so as to press, and it is easy to stabilize the attitude of the movable wing.

[0009]

1 shows a bathroom heating facility equipped with a ventilation device according to the present invention, in which a heating / drying device A for heating or drying the inside of a bathroom B is attached to the ceiling side of the bathroom B, and the inside of the bathroom B is installed. Is heated, and clothes such as clothes can be dried in the bathroom B.

As shown in FIGS. 2 and 3, the drying and heating device A has a casing 3 provided with an intake port 1 for sucking air in the bathroom B and an outlet port 2 for blowing air into the bathroom B. , A grill plate 15 provided with a suction grill 5 arranged corresponding to the intake port 1 and a movable louver 6 arranged corresponding to the discharge port 2, and the casing 3 includes the intake port 1 and the discharge port 2. Is fixed to the back surface side of the ceiling plate C via the flange portion 4 while facing downward from the rectangular through hole formed in the ceiling plate C, and the grill plate 15 holds the ceiling plate C while sandwiching the ceiling plate C. It is screwed to the casing 3 from the lower surface side.

Inside the casing 3, there are provided an air passage 9 that is ventilated by a circulation fan 7 as a blower, and a damper 8 for adjusting the air volume that adjusts the ventilation state in the air passage 9. 9 is branched into two branch air passages including a heating air passage 9a provided with a heat exchanger 10 for heating and an exhaust air passage 9b, and an intake port 1 which is an inlet of the air passage 9 is communicated with the inside of the bathroom B. At the same time, the air outlet 2 which is the outlet of the heating air passage 9a communicates with the inside of the bathroom B, and the outlet 13 of the exhaust air passage 9b communicates with the outside of the bathroom B, thereby providing the ventilation device according to the present invention.

The damper 8 is supported in a cantilevered posture, and the distribution ratio of the ventilation amount from the ventilation passage 9 to the heating air passage 9a and the exhaust air passage 9b is changed by swinging at the branch portion in the ventilation passage 9. Then, a single movable blade 8a capable of changing its ventilation state and a geared motor 8b as a driving means for driving and swinging the movable blade 8a.
The movable vane 8a is arranged so as to be driven and swung on the upstream side of the swing axis X of the movable vane 8a in the ventilation direction, and the exhaust gas within the swing range of the movable vane 8a is arranged. Wind path 9
A support plate 14 as a support means for supporting the movable blade 8a against wind pressure is provided at the end position of the swing range toward the b side.

The movable blades 8a drive the circulation fan 7 to discharge the air in the bathroom B to the outside during a ventilation operation.
As shown in FIG. 2, the circulation fan 7 is driven in a state in which the heat source hot water is being supplied to the heat exchanger 10 while being stopped at the exhaust position where the ventilation to the heating air passage 9a is blocked, and the air in the bathroom B is The air in the bathroom B is driven by driving the circulation fan 7 during the drying and heating operations in which the heat is circulated while being heated by the heat exchanger 10 and while the supply of the heat source hot water to the heat exchanger 10 is stopped. At the time of cool air operation in which the air is circulated without heating, as shown in FIG.
Is exhausted from the exhaust air passage 9b and the rest is stopped at a circulation position where it can be supplied to the heating air passage 9a, the supply of heat source hot water to the heat exchanger 10 is stopped, and the circulation fan The movable blade 8a is configured to stop at the circulating position when the operation of the movable blade 8a is stopped while the driving of the movable body 7 is stopped.

Each of S1 and S2 is a limit switch for detecting the swing position of the movable blade 8a, and the first limit switch S1 is turned on when the movable blade 8a is driven to swing to the exhaust position.
The second limit switch S2 is provided so as to be turned on when the movable blade 8a is driven and swung to the circulation position.

FIG. 4 is a control device 1 as a control means for controlling the operation of the circulation fan 7 and the operation of the geared motor 8b based on the information detected by the limit switches S1 and S2.
1 is a block diagram showing a control configuration of No. 1 in FIG.
Is configured to control the operation of the circulation fan 7 in order to reduce the amount of air blown by the circulation fan 7 or to stop the circulation fan 7 when the movable blade 8a is driven and swung. A heating operation switch 12a for instructing a heating operation, a dry operation switch 12b for instructing a dry operation, a cool air operation switch 12c for instructing a cool air operation, and a ventilation operation switch 12d for instructing a ventilation operation are input to the operation unit 12 to be input. And a stop switch 12e for instructing stop of operation.

5 and 6 are flow charts showing the control operation of the control device 11, and as shown in FIG.
When the ventilation fan is commanded (# 2) during the heating operation, the drying operation, or the cool air operation (# 1) in which the circulation fan 7 is rotating at a high speed in the state where the circulation fan is stopped at the circulation position, the circulation fan is 7 or the circulating fan 7 is stopped (# 3), and then the drive swing of the movable blade 8a toward the exhaust position side is started (# 4) to counter the wind pressure of the movable blade 8a. The amount of air blown by the circulation fan 7 is reduced or the circulation fan 7 is stopped when the drive swings in the direction of the first limit switch S.
1 is turned on, and when it is detected that the movable blade 8a is driven and swung to the exhaust position (# 5), the circulation fan 7 is rotated again at high speed (# 6) to start the ventilation operation (# 7). ).

Further, as shown in FIG. 6, during the ventilation operation in which the circulating fan 7 is rotated at a high speed while the movable blade 8a is stopped at the exhaust position (# 8), the drying operation or the heating operation is commanded. Then, the rotation speed of the circulation fan 7 is reduced or the circulation fan 7 is stopped (# 1).
0), starting the drive swing of the movable blade 8a toward the circulation position side (# 11), and reducing the air flow rate of the circulation fan 7 during the drive swing of the movable blade 8a in the direction not against the wind pressure, or ,
When the circulation fan 7 is stopped, the second limit switch S2 is turned on, and it is detected that the movable blade 8a is driven and rocked to the circulation position (# 12), the circulation fan 7 is rotated again at high speed (# 12). 13), the drying operation or the heating operation is started (# 14).

[Other Embodiment] 1. It is also possible to support a plurality of movable blades in a cantilevered posture and adjust the ventilation state by driving and swinging these movable blades in the ventilation passage. 2. A movable blade that can adjust the ventilation state by driving swinging in the ventilation passage that is not branched to the branch ventilation passage may be provided. 3. An air passage switching movable blade that selectively connects the air passage to the two branch air passages may be provided. 4. Reduce the amount of air blown by the blower when the movable blade is driven to swing to stop at a position in the swing range, or
It may be configured to control the operation of the blower so as to stop the blower. 5. The ventilation device according to the present invention is not limited to the device provided in the ventilation passage of the drying and heating device, and can be implemented by being provided in the ventilation passage for various purposes.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of drawings]

[Figure 1] Partially cutaway perspective view of bathroom heating equipment

FIG. 2 is a cross-sectional view of a main part of a drying and heating device.

FIG. 3 is a cross-sectional view of a main part of a drying and heating device.

FIG. 4 is a block diagram.

FIG. 5: Flow chart

FIG. 6 is a flowchart.

[Explanation of symbols]

 1 inlet 2 outlet 7 blower 8a movable blade 8b drive means 9 ventilation passage 9a heating air passage 9b exhaust air passage 11 control means 13 outlet 14 support means B bathroom X swing axis core

Claims (5)

[Claims] 1. A ventilation passage (9) ventilated by a blower (7) and the ventilation passage (9) supported in a cantilevered posture.
A movable wing (8a) that can adjust the ventilation state by swinging inside,
Driving means (8b) for driving and swinging the movable blade (8a)
And the operation of the blower (7) and the drive means (8b)
And a control means (11) for controlling the operation of the blower, wherein the control means (11) controls the amount of air blown by the blower (7) when the movable blade (8a) is driven and rocked. Decrease, or
In order to stop the blower (7), the blower (7)
A ventilator configured to control the operation of the. 2. The control means (11) reduces the amount of air blown by the blower (7) when the movable blade (8a) is driven and swung in a direction against the wind pressure, or the blower (7). 2. The ventilation device according to claim 1, which is configured to control the operation of the blower (7) to stop the blower. 3. The control means (11) reduces the amount of air blown by the blower (7) when the movable blade (8a) is driven and oscillated in a direction that does not oppose the wind pressure, or controls the blower (7). The ventilation device according to claim 1 or 2, which is configured to control the operation of the blower (7) to stop it. 4. The air passage (9) is branched into a heating air passage (9a) and an exhaust air passage (9b), and an inlet (1) of the air passage (9) and the heating air passage (9a).
The outlet (2) is communicated with the inside of the bathroom (B), the outlet (13) of the exhaust air passage (9b) is communicated with the outside of the bathroom (B), and the blower (7) is connected to the bathroom. The movable blade (8a) is arranged so as to ventilate the air in (B) to the ventilation passage (9), and the movable blade (8a) is driven to swing from the ventilation passage (9) to the heating air passage (9a). The exhaust air duct (9
4. The ventilation device according to claim 1, wherein the distribution ratio of the ventilation amount to b) is changeable. 5. The movable blade (8a) is the movable blade (8a).
The movable blade (8a) is arranged so as to be driven and rocked on the upstream side in the ventilation direction with respect to the rocking axis (a) of (a), and the movable blade (8a) is set to wind pressure at the end position of the swing range of the movable blade (8a). 5. Ventilation device according to claim 1, 2, 3 or 4, characterized in that support means (14) for supporting against it are provided.