JPH01169251A - Ultra-sonic wave humidifier - Google Patents

Abstract

PURPOSE:To perform a sanitary humidifying operation by a method wherein a pump for circulating water and generating an agitated flow is arranged within an atomized water tank, a filtering film for collecting germs in the water during operation of the pump and a check valve for preventing germ from being reversed through the filtering film are applied and a pump driving timer is arranged. CONSTITUTION:When a power supply switch and a humidifying switch are turned on, an ultrasonic vibrating element 5 within an atomized water tank 4 is driven by a frequency oscillator 6, the vibrated water is atomized within an atomizing chamber 2. Air filtered by a filter 10 under an operation of a fan 8 passes through an aeration passage 7, flows into the atomizing chamber 2, is mixed with atomized air, discharged from an atomizing duct 3 so as to perform a humidification of a room. In addition, in case that a humidifying operation is not carried out and water is contained in the atomized water tank 4, only the power supply switch is turned on, resulting in that a timer is operated and a pump 14 is operated for every specified time and the water in the atomized water tank 4 is circulated and agitated. Then, the water roughly filtered by a pre-filter 18 is caused to flow into the pump 14, passes through a check valve 19 under a water feeding pressure of a vane 16, sent to a filter film 15 and the germs are removed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an ultrasonic humidifier in which sterilization measures are taken in a water tank in order to keep an indoor guest room healthy and comfortable.

BACKGROUND OF THE INVENTION In recent years, as awareness of health and comfort has increased, there has been a demand for sterilization of humidifying water in order to eliminate the release of bacteria into indoor spaces from the humidified air blown out from ultrasonic humidifiers.

A conventional example of this type will be explained using the vertical cross-sectional view of FIG. 4. In FIG. 4, a spray chamber 2 in which water is atomized is provided within the ultrasonic humidifier body 1, and the air mixed with the atomized water is discharged outside the machine through a spray duct 3. A spray tank 4 of water to be atomized is installed at the bottom of the spray chamber 2. An ultrasonic vibrator 6 is provided at the bottom of the spray water tank 4 for applying vibrations to atomize water. The ultrasonic transducer 6 is driven by an oscillation current output from the frequency oscillator 6. Ultrasonic humidifier body 1
A fan 8 is installed at the bottom of the machine to blow air mixed with atomized water from the spray duct 3 through the ventilation passage 7 and the spray chamber 2 to the outside of the machine. is provided. At the upper right side of the spray tank 4,
A water tank 11 is provided, and a spray water tank 4 is provided through a water supply valve 12.
It is designed to supply water to the

In the above configuration, when the ultrasonic vibrator 6 is driven by the oscillation current output from the frequency oscillator 6 and starts vibrating, the water in the spray water tank 4 starts to atomize, and the spray chamber 2 is filled with the spray. The air sucked in from the air suction port 9 by the fan 8 is filtered for dust by the filter 10, flows into the spray chamber 2 through the ventilation passage 7, and the atomized air in the spray chamber 2 is transferred to the spray duct. From step 3, the air is released outside the machine to humidify the room. When the water level in the spray water tank 4 falls, water is supplied from the water tank 11 via the water supply valve 12. When the inside of the spray water tank 4 is dirty with water scale or the like and maintenance is performed, the flap 13 is removed and cleaned to maintain the humidifying ability.

Problems to be Solved by the Invention However, with the above configuration, if water remains in the spray tank 2 and it is not used for a long period of time, bacteria will grow and become contaminated, and if the water is allowed to continue to be used, the bacteria will grow together with the humidified air. There was a problem in that the water was scattered in the air and caused humidifier disease.

The present invention was made in view of the above-mentioned problems, and an object of the present invention is to provide an ultrasonic humidifier that suppresses the proliferation of bacteria in a spray water tank, sterilizes the water tank, and performs hygienic humidification.

Means for Solving the Problems In order to solve the above problems, the present invention provides an ultrasonic humidifier main body, a spray water tank provided in the ultrasonic humidifier main body, and a spray water tank provided at the bottom of the spray water tank. an ultrasonic vibrator that applies vibration to atomize water, and an ultrasonic vibrator provided in the spray water tank,
a pump that circulates and generates an agitation flow; a filtration membrane that receives flowing water when the pump is operated in succession to the pump and collects bacteria in the water; and a reverse filter that prevents bacteria from flowing back from the filtration membrane. The pump is constructed using a stop valve and a timer for operating the pump at regular intervals.

Function: With this configuration, the timer circuit operates the pump at regular intervals, and the water in the spray tank is filtered and sterilized by the filtration membrane, and the check valve prevents backflow, that is, the filtered bacteria. Since backflow into the spray tank is prevented, the water in the spray tank is always kept in a sanitary condition, and therefore, when spraying and humidifying outside the machine, bacteria will not be released into the room.

EXAMPLE Below, an ultrasonic humidifier according to an embodiment of the present invention is shown in FIG. 1, which is a vertical sectional view, FIG.
The explanation will be based on the electrical circuit diagram shown in the figure. Note that the same numbers are used for the names of members having the same functions as those in the conventional example, and detailed explanations are omitted.

In Figure 5g1, a spray chamber 2 in which water is atomized is provided in the ultrasonic humidifier main body 1, and the air mixed with atomized water is discharged outside the machine through a spray duct 3. . A spray water tank 4 for water to be atomized is arranged at the bottom of the spray chamber 2, and an ultrasonic vibrator 5 for applying vibration to atomize the water is provided at the bottom of the water bottle 4. There is. The ultrasonic transducer 5 is driven by an oscillation current output from a frequency oscillator 6. At the bottom of the ultrasonic humidifier main body 1, a fan 8 is installed that blows atomized air through a ventilation path 7, through a spray chamber 2, and from a spray duct 3 to the outside of the machine. A filter 10 is provided at the mouth 9.

A water tank 11 is provided at the upper right side of the spray tank 4, and is configured to supply water to the spray tank 4 via a water supply valve 12. A pump 14 for stirring and a filtration membrane 16 for filtering and sterilizing dust and bacteria in the water discharged from the pump 14 are provided. Next, a description will be given based on a vertical cross-sectional view of the pump 14 and the filtration membrane 16 in FIG. The pump 14 has a vane 16 for supplying water.
A pre-filter 18 is disposed on the water suction side of the pump 14, which includes a motor 17 for rotationally driving blades, and a pre-filter 18 for removing coarse dust. On the water supply side of the pump 14,
A filtration membrane 15 is provided which filters and sterilizes bacteria through a check valve 19 which opens when the valve plate rises due to the water supply pressure, and closes when the water supply is stopped to prevent backflow. Next, explanation will be given using the electric circuit diagram shown in FIG. When the power switch 20 connected in series to the power supply is turned on, a timer 21 connected in parallel to the power supply is activated, and the contact 22 is closed for a certain period of time at regular intervals, and the pump 14 connected to the contact 22 is turned on.
It has the function of operating for a certain period of time.

When the humidifying switch 23 connected in series via the power switch 2o is operated, the fan 8 and the frequency oscillator θ connected in parallel via the humidifying switch 23 are operated to start atomizing water and humidifying. The air is released.

In the above configuration, the power switch 20. Humidification switch 2
3, the ultrasonic vibrator 5 in the spray water tank 4 is driven by the oscillation current output from the frequency oscillator 6, and the vibrated water atomizes and fills the spray chamber 2. By fan 8,
The air filtered and sucked in by the filter 1o provided at the air suction port 9 passes through the ventilation passage 7, flows into the spray chamber 2, mixes with the atomized air, and is discharged from the spray duct 3 to the outside of the machine. Perform humidification. When the water level of the spray water tank 4 falls, water is supplied from the water tank 11 via the water supply valve 12. In addition to the above operations, the following operations are also performed. When the humidification operation is not performed and there is water in the spray water tank 4, only the power switch 2o is turned on. In that case, only the following operations will be performed. The timer 21 is activated, and the contacts 22 are closed at predetermined time intervals, and the pump 14 is activated for a predetermined time period, and the water in the spray water tank 4 is circulated and stirred.

When the pump 14 is activated, water that has been coarsely filtered by the pre-filter 18 flows into the pump 14, and due to the water supply pressure of the vanes 16 driven and rotated by the motor 17, the valve plate of the check valve 19 rises and the water is released. It passes through and is sent to the filtration membrane 15. The filtration membrane 15 has the ability to remove about 90% of particles of 0.2 to 1 μm, and since bacteria are larger than 0.2 to 1 μm,
Since the water is filtered and sterilized by the filter membrane 16 and sent into the spray water tank 4, a sanitary condition free of bacteria is always maintained. The number and duration of operation of the pump 14 by the timer 21 is determined based on the state of bacterial growth, but when using tap water, the backflow valve 19 only needs to be operated once a day. This prevents bacterial backflow from the If water has been stored in the spray water tank 4 for a long period of time, remove the lid 13 before use and clean it if water scale or the like has adhered thereto.

Effects of the Invention As described above, the present invention can be operated automatically using a pump installed in the spray tank and a timer that operates the water when the pump is operated, so that the water in the spray tank is always filtered. 4. Detailed Description of the Invention FIG. 1 is a vertical sectional view showing an ultrasonic humidifier according to an embodiment of the present invention, and FIG. FIG. 3 is a longitudinal sectional view of the same pump and filtration membrane, FIG. 3 is an electric circuit diagram thereof, and FIG. 4 is a longitudinal sectional view showing a conventional ultrasonic humidifier.

1... Ultrasonic humidifier body, 4... Sprayed water film, 6... Ultrasonic vibrator, 14...
Pump, 16...filtration membrane, 19...check valve, 21...timer.

Name of agent Patent attorney Toshio Nakao and one other person

Claims (1)

[Claims] an ultrasonic humidifier main body, a spray water tank provided in the ultrasonic humidifier main body, an ultrasonic vibrator provided at the bottom of the spray water tank and applying vibration to atomize water, and a pump that circulates and generates an agitating flow; a filtration membrane that is connected to the pump and that receives the flowing water when the pump is operated and collects bacteria in the water; and a filtration membrane that prevents bacteria from flowing back from the filtration membrane. An ultrasonic humidifier, which is formed using a non-return system to prevent the pump from moving, and a timer for operating the pump at regular intervals.