JPH035796Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] This invention is a humidifier that uses the atomization effect of ultrasonic waves to humidify water, and in particular has an ultrasonic vibrator at the bottom, and the water in the water tank flows through a water passage. The present invention relates to an improvement in a water storage tank in a humidifier, which is equipped with a water storage tank that is supplied through a water tank, and a cover part that covers the water tank and the fan cylinder and is provided with a guide wall inside to separate the fog generation part and the ventilation part.

[Technical background of the invention and its problems] This type of humidifier has a humidifier that prevents damage to the ultrasonic transducer at both the normal water level during normal operation and when the water level drops as the water tank runs out. Therefore, there is a drought level at which the safety device activates and stops the oscillation when the water level reaches a certain level, and between the normal water level and the drought level, especially just before reaching the drought level, the fog in the fog generating part is supplied with water from the water passage. However, the humidification efficiency tends to decrease due to leakage to the outside.

Conventionally, in order to eliminate such mist leakage, an outer tank part and an atomizing tank cover are fitted together to form an outer tank body, and an outer tank is attached to the inner periphery of the outer tank body so as to cover the fitting part. A side wall is provided integrally with the section, the inner surface of this side wall is used as an atomization tank to which an ultrasonic vibrator is attached, and the space between the outer surface and the outer tank body is used as a water reservoir, and this water reservoir has an opening for returning water to the atomization tank. A drilled hole is known from Publication of Utility Model Publication No. 59-28256, and further publications such as Publication of Utility Model Publication No. 59-28257 have been proposed. However, all of these devices have an ultrasonic transducer 1 at the bottom as shown in FIG. It is equipped with a cover part 9 that covers the blower tube 5 and has a guide wall 8 provided inside to separate the fog generating part 6 and the blower part 7, and in order to prevent mist leakage during humidification, especially just before a drought, A partition wall 11 for forming a water inlet 10 in the water passageway 3 is formed by extending to a position lower than the drought level A, and the water inlet 10 formed in this way below the drought level A is located at the drought level. It was constructed so that it was always sealed with water until the safety device was activated at A.

However, this is because the partition wall 11 extends to a position lower than the drought level A, so if the partition wall 11 is provided on the removable cover part 9 side, this partition wall 11 will get in the way and cover the cover. It is troublesome to assemble the part 9, and it tends to be in an incomplete state, and in an incomplete state, it is easy to cause mist leakage. Furthermore, since the bottom of the water passageway 3 must be lower than the drought level A, the water storage tank 4 and the waterway waterway 3
The capacity of the water storage section 12 on the water supply section side is increased, and the amount of remaining water during drought is correspondingly large, resulting in a disadvantage that the water utilization rate of the water supply tank 2 is poor.

[Purpose of the invention] The purpose of the invention is to provide a water storage tank for a humidifier that can prevent mist from leaking from the water passage just before a drought even if the water passage is formed higher than the drought level. .

[Summary of the invention] The water tank of the humidifier of the present invention has the bottom of the water passage formed higher than the drought level, and a part of the guide wall or cover separating the fog generating part and the blowing part is located close to the bottom of the water passage. The distance between the extended end and the bottom of the water channel is set at a distance that allows a water film to form due to surface tension, so that even if the water level drops below the water channel just before a drought, the surface tension Mist leakage is prevented by sealing the water film. Note that the drought level refers to the water level required to prevent damage to the ultrasonic transducer.

[Example of the invention] In FIGS. 1 to 4, 21 is a water storage tank having an ultrasonic vibrator 22 at the bottom that atomizes water by oscillation, and forms a fog generating section 23. .
Reference numeral 24 denotes a water reservoir section for storing water sent from the water supply tank 25 through the valve 26. 27 is the water tank 21
It is a water passage for communicating the water reservoir section 24 with the water reservoir section 24 and supplying the water in the water reservoir section 24 to the water storage tank 21.It is a safety device formed from a float, a switch, etc. to prevent damage to the ultrasonic transducer 22 (Fig. (not shown) is activated and stops oscillation, which is the drought level A.
It is formed at a height lower than the normal water level B at which normal humidification operation is possible, and slightly inclined toward the water storage tank 21 side.
Reference numeral 28 denotes an air blowing section installed in parallel with the fog generating section 23, in which air is blown by a fan (not shown) to the air blowing tube 29.
It is formed so that it is supplied from the outlet 30 of. Reference numeral 31 denotes a cover portion that covers the water tank 21 and the blower tube 29, and is removably placed on the stepped portion 32. Reference numeral 33 denotes a guide wall that is removably provided in the cover part 31 by an insertion part, and separates the fog generating part 23 from the blower part 28. The fog generation section 2
A ventilation hole 34 is formed to supply air to the third side. 3
Reference numeral 5 denotes a partition wall extending downwardly so as to partition a part of the guide wall 33 into the water passageway 27. The lower end of the partition wall 35 is close to the bottom surface of the water passageway 27, and the lower end of the partition wall 35 The distance between the water inlet 36 formed between the water inlet 36 and the bottom surface of the water flow channel 27 is 4.5, for example, at which a water film seal 37 is formed by surface tension.
It is set to about mm or less. 38 is the cover part 31
This is a blow-out nozzle installed in the In addition, partition wall 3
5 is shown as being formed on the guide wall 33, but it may also be formed on the cover portion 31.

The air sent out by the drive of the fan passes through the air outlet 30 of the air tube 29, the air blower 28, and the air outlet 34, and hits the water column generated by the ultrasonic vibrator 22 in the fog generator 23. The air becomes humidified air containing mist and is sent out from the blow-off nozzle 37 to humidify the atmosphere. In this case, when the water level in the water storage tank 21 is at the normal water level B as shown in FIG. prevent. Furthermore, when the water in the water tank 25 runs out and approaches the drought level A as shown in FIG. Since a water film sealing portion 37 is formed between the two and the surface tension due to surface tension, the water inlet 36 is closed and no mist leakage occurs. In this way, even if the water passage 27 is higher than the drought level A, mist leakage can be prevented just before the drought.

Since the present invention is as described above, the water passage 27
can be formed higher than the drought level A, and as a result, the partition wall 35 that forms the water inlet 36 becomes shorter, so the cover part 31 can be easily and accurately set without the partition wall 35 getting in the way, and the water inlet 36 is always filled with water. Even just before a drought, a water film seal 37 is formed due to surface tension and mist leakage is prevented, so that good humidification can be reliably obtained by a simple cover setting operation. Furthermore, the water passage 27
Since the bottom surface of the tank is formed above the drought level A, water during drought is only available in the water storage tank 1, and the water in the water passage 27 and the water storage part 24 can be reduced, so the utilization rate of water in the water supply tank 25 can be increased. .

[Effects of the invention] In the water tank of the humidifier of the present invention, the bottom of the water passage is formed to be higher than the drought level, and a part of the guide wall or cover separating the fog generation part and the ventilation part is placed close to the bottom of the water passage. The distance between the extended end and the bottom of the water channel is set at a distance that allows a water film to form due to surface tension, so even if the water level drops below the water channel just before a drought, the surface tension The water film seal prevents mist leakage and allows for easy and accurate cover installation. Furthermore, by such a simple cover setting operation, good humidification can be obtained, and the water remaining in the water tank during a drought is left only in the water tank, so that the utilization rate of water in the water tank can be increased, which is highly effective.

[Brief explanation of the drawing]

Figures 1 to 4 show a humidifying device according to an embodiment of the present invention, in which Figure 1 is an overall exploded perspective view of the present invention, Figure 2 is a sectional view showing the normal water level state, and Figure 3 is a humidifying device according to an embodiment of the present invention. FIG. 4 is a cross-sectional view of a main part showing the condition of a water passageway and a partition wall, and FIG. 5 is a cross-sectional view of a conventional humidifier. 21...Water tank, 22...Ultrasonic transducer, 23
... Fog generating section, 27 ... Water passage, 28 ... Ventilation section, 31 ... Cover section, 33 ... Guide wall.

Claims (1)

[Scope of utility model registration request] A water tank with an ultrasonic vibrator at the bottom and water from the water tank supplied through a water passage, and a cover part that covers this water tank and has a guide wall inside to separate the fog generation part and the ventilation part. In the humidifier, the bottom surface of the water passage is formed higher than the drought level, a part of the guide wall or the cover part is extended to a position close to the bottom of the water passage, and the extended end and the water passage are connected to each other. A water storage tank for a humidifier, characterized in that the space between the tank and the bottom of the tank is set to allow formation of a water film due to surface tension.