JP2002295872A - Humidifier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vaporizing humidifier which can detect humidity, with high accuracy and high responsiveness. SOLUTION: In the vaporizing humidifier which has a body 1 having a suction port 8 and a blowout port 12 made, a fan 6 and a tank 2 provided within the body, a heater 4 annexed within this tank, and a vaporization element 3 having water absorption properties and air permeability, with its bottom being dipped in the water inside the tank 2; and in which the fan 6 sucks air from the suction port 8, ventilates the air to the vaporizing element 3 and blows the air from the blowout port 12 together with the stream generated from the tank 2; and a bypass air duct 14 or another air duct 18 which suppresses the suction air velocity of the fan 6 provided separately from the main air duct 9a which ventilates air to the vaporization element 3, and a humidity sensor 10 is arranged in this bypass air duct 14 or another air duct 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a humidifier provided with a humidity sensor for detecting indoor humidity.

[0002]

2. Description of the Related Art In a conventional humidifier equipped with a humidity sensor, a humidity sensor is arranged upstream in an air passage,
A method is adopted in which the device is placed in a position isolated from the wind path and out of the wind.

FIG. 4 shows a conventional vaporizing humidifier in which a humidity sensor is arranged upstream in an air passage. In FIG.
1 is a main body of the humidifier, 2 is a water tank provided in the lower part of the main body 1, 3 is a water-absorbing and air-permeable vaporizing element disposed so that the lower part is immersed in water in the water tank 2. A heater for heating the water in the water tank 2, a water tank 5, a blower fan 6 composed of a sirocco fan, a driving motor 7 for driving the blower fan 6, a suction port 8, and a blower 9 for the blower fan 6. An air passage for sending to the vaporizing element 3 provided inside is a humidity sensor 10 provided in an air passage 9 located near the suction port 8, 11 is a control board, and 11 is an outlet.

In the conventional vaporizing humidifier shown in FIG. 4, after confirming that water is present in the water tank 2, a drive motor 7 is rotated by turning on an operation switch (not shown),
Outside air is sucked from the inlet 8, passes through the air passage 9, passes through the vaporizing element 3, and is discharged to the outside from the outlet 12. At this time, since the vaporizing element 3 absorbs the water in the water tank 2 due to its water absorption and contains moisture, the air passing through the vaporizing element 3 becomes humid and humidifies the room. The control board 11 changes the number of rotations of the drive motor 7 based on the information of the humidity sensor 10, changes the amount of air passing through the vaporizing element 3, and adjusts the humidification amount. At this time,
If the heater 4 is energized to heat the water in the water tank 2 to make it hot water, the humidification amount can be increased. On the other hand, when disinfecting the vaporizing element 3, the heater 4 is energized to heat the water in the water tank 2 to a high temperature. At this time, the blowing fan 6 is usually stopped so that the temperature does not decrease due to the blowing.

[0005]

However, in the configuration of the conventional humidifier described above, since the humidity sensor 10 is provided in the air passage 9, the speed of the suction air hitting the humidity sensor 10 is too fast to accurately detect the humidity. There was a problem that it could not be done. On the other hand, when the humidity sensor is arranged at a position where the wind does not hit, there is a problem that the response of the humidity detection is poor. In the case of a vaporizing humidifier, when the evaporating element 3 is sterilized, steam is trapped in the air passage 9 because the blower fan 6 is stopped, so that the humidity sensor 10 accurately detects the indoor humidity. There was a problem that it was not possible.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to provide a humidifier capable of detecting humidity accurately and responsively.

[0007]

SUMMARY OF THE INVENTION A humidifying apparatus according to the present invention has a main body having a suction port and an air outlet, a blower fan and a water tank provided in the main body, and a heater provided in the water tank. A humidifier in which the blower fan draws air from the suction port and blows out from the blowout port together with steam generated from the water tank, wherein a bypass suction port and a bypass air passage are provided in the main body to suppress the suction wind speed , A humidity sensor is arranged in the bypass air passage.

Further, the humidifying device of the present invention comprises a main body having an inlet and an outlet, a blower fan and a water tank provided in the main body, a heater provided in the water tank, and a water supply in the water tank. A vaporizing element having a water-absorbing property and a gas-permeable property in which a lower portion is immersed, wherein the blower fan draws air from the suction port, ventilates the vaporizing element, and blows out from the outlet together with steam generated from the water tank. In the humidifier described above, the blower fan is a two-sided suction fan, and a main airflow path for ventilating the vaporizing element and another airflow path with a reduced suction air velocity are provided in the main body, and each of the two-sided suction fans is suctioned by one of the two suction fans. A fan is used to separately ventilate the main air passage and another air passage, and a humidity sensor is arranged in the another air passage.

[0009] Further, a difference is provided so that the intake air volume of the two-sided intake fan is large on the main air passage side for ventilating the vaporizing element and small on the other air passage side.

[0010] Further, the drive motor of the blower fan is arranged on another wind path side.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, Embodiment 1 of the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram of a vaporizing humidification apparatus showing a first embodiment according to the present invention. In FIG. 1, 1 is a main body of the humidifier, 2 is a water tank provided in a lower part of the main body 1, and 3 is a vaporizer having water absorbency and air permeability arranged so that the lower part is immersed in water in the water tank 2. Element 4 is a heater for heating water in water tank 2, 5
Is a water tank, 6 is a blower fan consisting of a sirocco fan,
Reference numeral 7 denotes a drive motor for driving the blower fan 7, reference numeral 8 denotes a suction port, reference numeral 9 denotes a main air passage for sending intake air from the suction port 8 to the vaporizing element 3, reference numeral 13 denotes a bypass suction port, and reference numeral 14 denotes a bypass suction port 13. And a bypass air passage 10 that suppresses the suction wind speed of the blower fan to a predetermined wind speed or less by communicating with a humidity sensor 11 provided in the bypass air passage 14.
Denotes a control board, and 12 denotes an air outlet. Reference numeral 15 denotes a water passage for communicating the water tank 2 with the tank receiving portion 16. The bypass air passage 14 joins with the main air passage 9 before the vaporizing element 3.

More specifically, the water level in the water tank 2 is always kept at a constant level due to the relationship between the water tank 5, the tank receiving portion 16 and the water channel 15. The heater 4 is arranged so that the water in the water tank 2 can be heated into hot water.
The blower fan 6 is located downstream of the vaporizing element 3.

Next, the operation of the first embodiment having the above configuration will be described. The water in the water tank 5 is received by the tank receiving part 16 and supplied to the water tank 2 through the water channel 15. A vaporizing element 3 is disposed in the water tank 2 so that the lower part is immersed in the water surface, and sucks up water so as to spread over the entire surface by capillary action. On the other hand, when the blower fan 6 is operated, dry air in the room is sucked in from the suction port 8, and the dried air passes through the water-absorbing vaporizing element 3 disposed in the main air passage 9a to be moist and blow. Humidification is performed by being discharged from the outlet 12 to the outside. At the same time, dry air in the room is also sucked in from the bypass suction port 13, and accurate humidity information is given by hitting the air whose suction wind speed is suppressed by the blower fan 6 to the humidity sensor 10 provided in the bypass air passage 14. .
The control board 11 adjusts the humidification amount by changing the rotation speed of the drive motor 7 and changing the amount of air to be sucked in based on the accurate humidity information detected by the humidity sensor 10. On the other hand, the vaporizing element 3
During the disinfection, the heater 4 is energized to heat the water in the water tank 2 to a high temperature. At this time, the blowing fan 6 is stopped so that the temperature does not decrease due to the blowing.

The rotation speed of the drive motor 7 is variable for adjusting the humidification amount. Accordingly, the amount of air blown by the blower fan 6 changes. However, in this case, the wind speed hitting the humidity sensor 10 is 0.05 to 0.5 m. / S, correct humidity detection can be performed without deteriorating the responsiveness. Therefore, the opening area of the bypass suction port 13 may be set in advance so as to be in the above-described wind speed range.

At the start of the humidifying operation, the heater 4
To increase the humidification amount at the start of operation by heating the water in the water tank 2 to make it hot water and supplying it to the vaporizing element 3. After a predetermined time or when the humidity reaches a predetermined value or more, the heater is heated. It is also possible to stop the energization to 4 and continue the humidification operation.

Embodiment 2 Next, a second embodiment of the present invention will be described with reference to the drawings. FIG. 2 is a configuration diagram of an evaporative humidifier according to a second embodiment of the present invention, and FIG. 3 is a perspective view illustrating a blower fan according to the second embodiment of the present invention. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. 2 and 3, reference numeral 6 denotes a blower fan composed of a suction fan on both sides, and 6a denotes a main wing blade provided on the front side of the blower fan 6 and having a large suction airflow. The air passes through the main air path 9a. Reference numeral 6b denotes an auxiliary wing blade provided on the back side of the blower fan and having a small intake air volume, and the humidity sensor 10 is disposed by sucking air from another air passage intake port 17 formed so as to be away from a heat source and humid air. It ventilates to another wind path 18. The auxiliary wing blade 6b provided in the blower fan 6 draws in air from another air inlet 17 and has a wind speed of 0.05 to 0.5 m /
The length is determined to be in the range of s. The drive motor 7 located on the downstream side of the vaporizing element 3 is arranged on the side of another air passage 18 of the blower fan 6.

Next, the operation of the second embodiment having the above configuration will be described. The water in the water tank 5 is received by the tank receiving part 16 and supplied to the water tank 2 through the water channel 15. A vaporizing element 3 is disposed in the water tank 2 so that the lower portion is immersed in the water surface, and sucks up water so as to spread over the entire surface by capillary action. On the other hand, by the operation of the blower fan 6 composed of the suction fans on both sides, the rotation of the main wing blades 6a sucks the dry air in the room from the suction port 8, and the dried air absorbs the water provided in the main air passage 9a. It passes through the vaporizing element 3 and becomes humid, and is discharged to the outside from the outlet 12 to humidify the room. At the same time, the rotation of the auxiliary wing blades 6b draws in the dry air in the room from the other air path suction port 17 and hits the humidity sensor 10 provided in the other air path 18 with the suppressed air velocity. Provides more accurate humidity information. The control board 11 changes the number of revolutions of the drive motor 7 based on the accurate humidity information detected by the humidity sensor 10, changes the suction air flow, and adjusts the humidification amount. On the other hand, when disinfecting the vaporizing element 3, the heater 4 is energized to heat the water in the water tank 2 to a high temperature. At this time, the blowing fan 6 is stopped so that the temperature does not decrease due to the blowing.

As described above, according to the second embodiment, the blower fan 6 is a two-sided suction fan, and the two-sided suction fan blows the main air passage 9a by the main wing blade 6a having a large suction airflow, and the suction airflow is small. Auxiliary wing blade 6
b, the separate air passage 18 is ventilated, so that the separate air passage 18 can be freely configured so as to be away from the heat source and the humid air. The wind speed hitting the humidity sensor 18 can be set appropriately. Further, since the drive motor 7 of the blower fan 6 is arranged on the side of the separate air passage 18, the heat generated by the drive motor 7 is cooled by the air blown through the separate air passage 18, and the temperature rise due to the heat generated by the drive motor 7 itself is reduced. Can be reduced. Further, even when the blower fan 6 is stopped during the sterilization of the vaporizing element 3, the separate air path 18 has an air path independent of the main air path 9a, so that steam is not trapped, so that the humidity is low. The sensor 10 can accurately detect indoor humidity.

In the first and second embodiments, the case of the vaporizing humidifier having the vaporizing element has been described. However, it goes without saying that the present invention can also be applied to a steam humidifier.

[0020]

As described above, according to the present invention, there are provided a main body having a suction port and an air outlet, a blower fan and a water tank provided in the main body, and a heater provided in the water tank. A humidifier in which the blower fan draws in air from the suction port and blows out from the blowout port together with steam generated from the water tank. Since the humidity sensor is disposed in the humidity sensor, the humidity sensor can perform highly accurate humidity detection, and the humidifying amount can be controlled with good responsiveness.

Further, according to the present invention, a main body having a suction port and an air outlet, a blower fan and a water tank provided in the main body, a heater provided in the water tank, and a lower part provided with water in the water tank. Having a water-absorbing and air-permeable vaporizing element in which the air is immersed, and the blower fan draws air from the suction port, ventilates the vaporizing element, and blows out from the outlet together with steam generated from the water tank. In the humidifier, the blower fan is a suction fan on both sides,
In the main body, a main air passage that ventilates the vaporizing element and another air passage that suppresses the suction wind speed are provided, and the main air passage and the separate air passage are separately provided using one suction fan of each of the two-sided suction fans. Since the ventilation is provided and the humidity sensor is arranged in the separate air passage, the humidity sensor can detect the humidity with high accuracy, and can control the humidification amount with good responsiveness. The effect of being able to freely configure away from the air is obtained.

Further, according to the present invention, the suction air flow rate of the two-sided suction fan is set to be large on the main air path side and small on the other air path side. The effect is obtained that the wind speed impinging on the humidity sensor in another wind path can be set appropriately.

Further, according to the present invention, since the drive motor of the blower fan is arranged on the side of another air passage, an effect of reducing a temperature rise due to heat generation of the drive motor itself can be obtained.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an evaporative humidification apparatus showing a first embodiment of the present invention.

FIG. 2 is a configuration diagram of an evaporative humidification apparatus showing a second embodiment of the present invention.

FIG. 3 is a perspective view of a blower fan according to a second embodiment of the present invention.

FIG. 4 is a configuration diagram of a conventional evaporative humidifier.

[Explanation of symbols]

1 main body, 2 water tank, 3 vaporizing element, 4 heater, 6 blower fan, 6a main wing blade, 6b auxiliary wing blade, 7 drive motor, 8 suction port, 9a main air path,
Reference Signs List 10 humidity sensor, 12 outlet, 13 bypass inlet, 14 bypass air passage, 17 separate air passage inlet, 18
Another wind path.

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Toshiyuki Yanagi 2-3-2 Marunouchi, Chiyoda-ku, Tokyo F-term in Mitsubishi Electric Corporation 3L055 BA02 DA05 DA20 3L060 AA05 CC06 DD02 EE25 3L061 BA01

Claims (4)

[Claims] 1. A main body having a suction port and an air outlet, a blower fan and a water tank provided in the main body, and a heater provided in the water tank, wherein the blower fan draws air from the suction port. A humidifier that blows out from the outlet together with the steam generated from the water tank, wherein a bypass air path is provided in the main body to reduce the suction air velocity, and a humidity sensor is disposed in the bypass air path. Humidifier. 2. A main body having a suction port and an air outlet, a blower fan and a water tank provided in the main body, a heater provided in the water tank, and a water absorbing part whose lower part is immersed in water in the water tank. And a vaporizing element having air permeability, wherein the blower fan sucks air from the suction port, ventilates the vaporizing element, and blows out from the outlet together with steam generated from the water tank. The blower fan is a two-sided suction fan, and a main airflow path for ventilating the vaporizing element and another airflow path with a reduced suction air velocity are provided in the main body. A humidifying device, wherein ventilation is performed separately on a road and a separate air passage, and a humidity sensor is disposed in the separate air passage. 3. The humidifying device according to claim 2, wherein a difference is provided between the two suction fans in such a manner that the suction air amount is large on the main air path side and small on the other air path side. 4. The humidifier according to claim 2, wherein a drive motor of the blower fan is arranged on a separate air path side.