JP2589922B2 - Ultrasonic humidifier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic humidifier provided with humidifying water sterilizing means.

[0002]

2. Description of the Related Art In recent years, as public interest in health and hygiene has increased, bacteria and fungi (hereinafter referred to as microorganisms) that propagate in the humidifying water of an ultrasonic humidifier are used together with air to atomize and humidify water. There is a problem that it is released into the room and contaminates the room, and measures to prevent this are required.

Conventionally, as a countermeasure against microorganisms that propagate in humidification water of an ultrasonic humidifier, a configuration as shown in Japanese Patent Application Laid-Open No. Hei 2-238237 has been generally used.

Hereinafter, the configuration will be described with reference to FIG. As shown in FIG. 3, a water tank 102 for atomizing water is provided in the humidifier body 101, and a heater 103 for heating water and an ultrasonic wave for atomizing water are provided at the bottom of the water tank 102. A vibrator 104 is provided, and the ultrasonic vibrator 104 is connected to an oscillation circuit 105 provided immediately below the vibrator, which is a drive output source of vibration.

A water supply tank 106 for automatically supplying water to a detachable water tank 102 is mounted on the humidifier body 101, and a valve is provided below the water supply tank 106 when the water in the water tank 102 becomes less than a predetermined amount. A water supply valve 107 that opens is provided.

Above the water tank 102, there is an atomizing chamber 108, and a fan 111 for sending air from the lower air suction port 109 to the atomizing chamber 108 through the air passage 110 in the humidifier body 101. And is fixed to the bottom inside the humidifier body 101. Above the atomizing chamber 108, there is provided an outlet 112 for blowing air containing water atomized in the atomizing chamber 108, that is, humidified air.

In the above configuration, first, the water supply tank 10
When sufficient water is put into the humidifier 6 and the humidifier body 101 is placed at a predetermined position, the water in the water supply tank 106 is supplied into the water tank 102 while being adjusted by the water supply valve 107. The humidified water in the water tank 102 is heated and sterilized by the heater 103, and the ultrasonic vibrator 104 is output from the oscillation circuit 105 at 1.7 M.
When vibrated at a frequency of Hz, water mist of about 5 to 50 microns is generated in the atomization chamber 108 and blown into the room through the outlet 112 by the fan 111.

[0008]

In such a conventional ultrasonic humidifier, the humidification water in the water tank is sterilized by heating with a heater. However, since the capacity of the humidification water tank is large, the amount of humidification water to be heated is large. As a result, there has been a problem that the power consumption of the heater is increased, it takes time to heat the water to a certain temperature, and the temperature distribution of the humidified water is not uniform, so that efficient heat sterilization cannot be performed.

An object of the present invention is to provide an ultrasonic humidifier for rapidly increasing the temperature of humidified water sent to an atomizing water tank with a smaller heater capacity and efficiently sterilizing by heating. .

[0010]

Means for attaining the object of the present invention are: an ultrasonic humidifier main body; an atomizing water tank and a water storage tank provided in the ultrasonic humidifier main body; A water tank and the water storage tank are separated, a water supply passage communicating the atomization water tank and the water storage tank is provided, an ultrasonic vibrator provided at the bottom of the atomization water tank, and an upper part of the water storage tank. A water supply tank having a water supply port for supplying water to the water storage tank, and a heater provided in the water supply passage for heating and sterilizing the humidified water in the water supply passage. is there.

A second means for achieving the second object of the present invention is to separate a water storage tank and an atomization water tank, and to provide a water supply passage communicating the water storage tank with the atomization water tank. It is provided with a heater provided in the passage for heating the water temperature in the water supply passage.

[0012] A third means for achieving the third object of the present invention is a water level detecting means provided near the water surface of the atomizing water tank for detecting the level of humidified water in the atomizing water tank, and the water storage tank. A water channel opening / closing means interlocked with the water level detection means is provided between the water tank and the atomization water tank.

[0013]

According to the present invention, a heater is provided in a water supply passage connecting the atomizing water tank and the water storage tank with the above-described means, and the humidifying water supplied to the atomizing water tank is small because the capacity of the water supply passage is small. The temperature rises rapidly, and heat sterilization can be performed reliably, and heat sterilization with a smaller heater capacity can be performed.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS.
This will be described with reference to FIG. The same parts as those in the conventional example are denoted by the same reference numerals, and detailed description is omitted. As shown in the figure, the water blocking wall 4 is provided between the atomization water tank 1 and the water storage tank 3 and has a structure for separating and shutting off the atomization water tank 1 and the water storage tank 3. The water supply passage 5 is provided on the water blocking wall 4, and the heater 103 c has a structure provided on the main body of the water supply passage 5.
The water supply passage 5 is made of copper, aluminum, iron pipe or other resin having good thermal conductivity, and has a diameter of 5 in consideration of humidification ability.
A size of ２０20 mm is sufficient. The heater 103c
A nichrome heater, band heater, planar heater or ceramic heater is used. The operation of the above configuration will be described below. The humidification water supplied from the water supply tank 106 is supplied to the atomization water tank 1 from the water storage tank 3 through the water supply passage 5 provided in a part of the water blocking wall 4. The humidification water is heated by the heater 103c provided in the main body of the water supply passage 5 when passing through the water supply passage 5, and since the water capacity of the water supply passage 5 is small, the temperature rises rapidly, and the heat sterilization can be performed reliably. it can. The heat-sterilized humidified water is sent to the atomizing water tank 1 and atomized by the ultrasonic vibrator 104 to be humidified by the germs. The water temperature of the atomizing water tank 1 is
Although the water temperature slightly drops compared to the water temperature of the water supply passage 5,
Since the humidification water is heat-sterilized in the water supply passage 5, the mist state of the atomization water tank 1 is maintained. Therefore, the atomizing water tank 1
Heating the water supply passage 5 having a smaller water capacity and increasing the water temperature as compared with heating the
The temperature of the water in the water supply passage 5 can be further increased, heat sterilization can be performed reliably, and energy is saved accordingly.

[0015]

As is apparent from the above embodiments, according to the present invention, the water tank is separated from the water tank and the water tank is provided to connect the water tank and the water tank. By providing a heater for heating and sterilizing the humidification water, only the humidification water in the water supply passage with a smaller water volume supplied from the water storage tank to the atomization water tank is heated, so that the temperature tends to rise sharply. It is possible to provide an ultrasonic humidifier capable of increasing the water temperature with less power consumption of the heater and reliably heating and sterilizing the humidified water.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an ultrasonic humidifier according to a first embodiment of the present invention.

FIG. 2 is a graph showing the results of heat sterilization of bacteria in humidified water of the present invention.

FIG. 3 is a longitudinal sectional view of a conventional ultrasonic humidifier.

[Description of Signs] 1 Atomizing water tank 3 Water storage tank 4 Water blocking wall 5 Water supply passage 101 Ultrasonic humidifier body 103 Heater 104 Ultrasonic vibrator 106 Water supply tank

Claims (1)

(57) [Claims] 1. An ultrasonic humidifier main body, an atomizing water tank and a water storage tank provided in the ultrasonic humidifier main body, and the atomizing water tank and the water storage tank are separated from each other. A water supply passage communicating with the water storage tank, an ultrasonic vibrator provided at the bottom of the atomization water tank, and a water supply tank provided at the top of the water storage tank and having a water supply port for supplying water to the water storage tank; And an ultrasonic humidifier provided in the water supply passage and having a heater for heating and sterilizing the humidification water in the water supply passage.