JPH035792Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an ultrasonic humidifier, and more particularly, to an ultrasonic humidifier with an improved means for controlling water supply to an aquarium.

[Industrial application field]

Generally, as shown in FIG. 2 or 3, in an ultrasonic humidifier, a piezoelectric vibrator 2 is attached to the bottom plate of a water tank 1, and a high frequency wave oscillated from a high frequency oscillator 3 placed near the piezoelectric vibrator is transmitted to the piezoelectric vibrator. 2 converts it into mechanical vibration, atomizes the water in the water tank, and uses this fine particle mist to control the humidity in the room.

[Conventional technology]

The water in the aquarium decreases as it scatters indoors, but the water supply control means installed in the ultrasonic humidifier shown in Figure 2 consists of a float, a permanent magnet, and a reed switch. The first float switch a and the second float switch b are floated in the water tank, the first float switch a detects the water level in the tank, and the water level is controlled via the power supply c in response to the fluctuation of the water level with respect to the set value. Solenoid valve d installed in the water supply pipe 4
The second float switch b operates the piezoelectric vibrator 2 to perform intermittent control of water supply.
The lower limit water level is detected and the high frequency oscillator 3 is stopped for the purpose of maintenance.

Further, the water supply control means installed in the ultrasonic humidifier shown in FIG. Intermittent water supply control is performed by operating the on-off valve 5 in response to the water level, and a float switch b for detecting the lower limit water level is separately provided, as in the case of the humidifier shown in Fig. 2. be.

[Problem that the invention attempts to solve]

However, the water supply control means for the former humidifier requires two float switches a and b, a power supply c, a solenoid valve d, etc., and these account for about 1/3 of the total cost. The disadvantage is that the equipment is complicated and expensive, and although the cost of the water supply control means for the latter humidifier is somewhat lower than that of the former, the volume of the float e occupies a large proportion, and the entire water tank is More than 1/2 of the area is occupied by the water supply control means, and the balance between the main purpose of exciting water to generate mist droplets and the secondary purpose of the water supply control means is extremely imbalanced. However, there is a disadvantage that the volume of the water tank itself and thus the humidifier becomes considerably large.

The present invention was developed by focusing on the above-mentioned drawbacks of conventional water supply control means for ultrasonic humidifiers.
Adopts a new and simplified water supply control method that uses gravity fluctuations of the water in the tank, without using float switches or solenoid valve circuits that cause high costs, or floats that increase size. The purpose is to provide an inexpensive and compact ultrasonic humidifier.

[Means for solving problems]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The ultrasonic humidifier of the present invention will be described below with reference to the accompanying drawings showing embodiments thereof.

FIG. 1 is a schematic longitudinal sectional view of the ultrasonic humidifier of the present invention, where a shows the state when the amount of water in the water tank 1 decreases;
b shows the situation when the same amount of water increases due to water supply.

In the figure, the ultrasonic humidifier of the present invention is different from the conventional one in that a piezoelectric vibrator 2 connected to a high-frequency oscillator 3 is attached to the bottom plate 1a of the water tank 1, and a water supply pipe 4 is arranged above the water tank 1. However, in the present invention, the water supply control means is configured as follows.

That is, the water tank 1 is mounted on a rotatable support at one side edge of the bottom plate 1a on a mounting table 6 disposed near the side edge of the bottom wall 5a of the outer shell container in which the water tank 1 etc. are housed. The upper part of the side plate 1b of the aquarium 1 on the side that is placed via the shaft 7 and supported by the support shaft 7 is connected to the side wall 5b of the opposing outer shell container by a spring 8 with a strong restoring force such as a coil spring. be done. On the other hand, above the aquarium side plate 1c facing the aquarium side plate 1b on the side of the support shaft 7, a water supply pipe 4 is provided with an on-off valve 9 having a valve seat 9a and a valve body 9b at its tip. A rotatable arm 8 is pivotally supported on the extending portion 4a of the arm 8 via a support shaft 11. The arm 8 is made of a rod with a long hole 8a bored at one end, and the other end is fixed to the valve body 9b of the on-off valve 9.
There is a protruding piece 10 protruding from the upper part of the aquarium side plate 1c.
is loosely inserted, and the arm 8 is slidably attached to the upper part of the aquarium side plate 1c via a projection piece 10.

Also, the side plate 1b of the water tank 1 on the side to which the spring 8 is connected
A limit switch 12 interlocked with the oscillator 3 is fixed to the side wall 5b facing the oscillator 3.

[Effect]

Next, the operation of the humidifier of the present invention having the above structure will be explained.

First, the water in the aquarium 1 is atomized by vibrations caused by the piezoelectric vibrator 2, and when the amount of water in the aquarium 1 decreases below a predetermined amount, the water in the aquarium becomes lighter and the aquarium 1 is pulled by the restoring force of the spring 8. It is held in the state shown in FIG. 1a using the support shaft 7 as a fulcrum. In this state, the protruding piece 10 on the upper part of the aquarium side plate 1c is attached to the arm 8.
In order to slide inside the elongated hole 8a and lift up the elongated hole 8a, the other end 8b of the arm moves downward about the support shaft 11. Then, the valve body 9b of the on-off valve 9 is also separated from the valve seat 9a together with the other end 8b of the arm, and water is supplied from the water supply pipe 4.

As the water supply progresses and the amount of water in the tank 1 exceeds a predetermined amount, the water in the tank 1 gradually becomes heavier, and the tank 1 is moved by the spring 8.
It overcomes the restoring force of , and tilts in the direction of arrow A, using the support shaft 7 on the mounting table 6 as a fulcrum, as shown in the state shown in FIG. 1b. Then, the elongated hole 8a of the arm 8
is lowered in the direction of arrow A using the support shaft 11 as a fulcrum by the sliding of the protrusion 10 loosely inserted into the elongated hole 8a, and the other end 8b of the arm 8 rotates upward to move the valve body 9b upward. the valve seat 9a, and the water supply is stopped.

As described above, the water supply in the humidifier of the present invention is controlled by the mounting table 6 based on the increase/decrease in the amount of water in the water tank 1.
This is accomplished by the lever movement of the water tank 1 with the upper support shaft 7 as a fulcrum and the opening/closing operation of the on-off valve 9 by the link mechanism of the arm 8 which operates in conjunction with this lever movement.

In addition, a limit switch 12 installed on the side wall 5b opposite to the side plate 1b on the spring 8 side of the aquarium 1 is configured to stop the water in the aquarium 1 when the water supply is stopped due to a water outage or the like and the water in the aquarium unilaterally decreases. The system detects the lower limit of the amount of water and stops the operation of the oscillator 3. Its action is such that when the amount of water in the aquarium 1 reaches the lower limit and the weight of the aquarium 1 becomes lighter, the aquarium 1 is moved by the spring 8 as shown in Fig. 1a.
The tank side plate 1b presses the limit switch 12 to stop the operation of the high frequency oscillator 3, thereby preserving the piezoelectric vibrator 2.

[Effect of idea]

As explained in detail above, according to the ultrasonic humidifier of the present invention, a simple valve mechanism such as a conical seat valve is used as an on-off valve provided at the water inlet of the water supply pipe 4, and this operation is carried out in the water tank. Since the water supply is controlled by the lever movement of the water tank that is linked to the gravity fluctuation of the water in the tank and the arm link mechanism that is linked to this, the water supply control mechanism has been simplified and is no longer necessary for conventional humidifiers. This eliminates the need for expensive float switches, solenoid valves and their mounting circuits, or large control valves such as float valves, making it possible to provide a humidifier at a low cost. It can be made small.

Furthermore, unlike conventional humidifiers, a float or float is not floated in the water tank, so there is no vibration in the on-off valve control system due to ripples on the water surface, and the humidifier of the present invention has increased flexibility in design and appearance. Advantages such as the ability to diversify shapes can also be obtained.

[Brief explanation of drawings]

Figure 1 is a schematic longitudinal cross-sectional view of the ultrasonic humidifier of the present invention, where a shows the state when the amount of water in the water tank decreases, and b
indicates the situation when the same amount of water increases. 2 and 3 show schematic longitudinal cross-sectional views of a conventional ultrasonic humidifier. 1... Water tank, 2... Piezoelectric vibrator, 3... High frequency oscillator, 4... Water supply pipe, 6... Mounting table, 7... Support shaft, 8... Arm, 9... Open/close valve, 9a... Valve seat, 9b... Valve body, 10... Projection piece, 11... Support shaft, 12... Limit switch.

Claims (1)

[Scope of utility model registration request] In an ultrasonic humidifier, a piezoelectric vibrator connected to an ultrasonic oscillator is provided at the bottom of a water tank, and a water supply pipe with an on-off valve is arranged above the water tank, one side of the bottom plate of the water tank is mounted on a mounting table. The aquarium side plate is placed on a rotatable support shaft, and a spring is connected between the upper part of the aquarium side plate on the support shaft side and a fixed wall opposite to the upper part of the side plate, and the aquarium side plate faces the aquarium side plate on the support shaft side. A support shaft provided in the water supply pipe extension part with a middle part of an arm having a protruding piece protruding from the upper part, one end side sliding through the protruding piece, and the other end fixed to the valve body of the on-off valve. When the amount of water in the water tank decreases to a predetermined amount or less, the water tank tilts toward the spring due to the restoring force of the spring, and the other end of the arm displaces the support shaft. When the valve element rotates downward from the center and leaves the valve seat, the on-off valve opens and water supply to the water tank is started.When the amount of water in the tank exceeds a predetermined amount, the water tank is released from the spring. The arm tilts to the opposite side of the spring against the restoring force, and the other end of the arm rotates upward about the support shaft, and the valve body comes into close contact with the valve seat, thereby closing the on-off valve and supplying water. An ultrasonic humidifier characterized by automatically stopping water supply and automatically controlling water supply.