JPS6225941B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ultrasonic humidifier that prevents ultrasonic reflection phenomena due to density differences in water that occur when water is replenished.

As is well known, ultrasonic humidifiers generate fog above the water surface by emitting ultrasonic waves generated from an ultrasonic vibrator installed at the bottom of the water tank into the water, which is then transported indoors using a fan. It releases moisture and humidifies the air. Conventionally, in such devices, when the water level drops, if the water completely disappears, the vibrator becomes a so-called dry cooking state and deteriorates, so in order to prevent this, a certain level of water called the drought water level is set. The humidifying operation is automatically stopped when the humidity is maintained. However, this method has the following drawbacks. In other words, if the humidifier is installed in a heated room in a cold region, the water temperature in the aquarium will be within 20 to 30 degrees Celsius, which is approximately the same as the indoor temperature, whereas the temperature of tap water will be 5 degrees Celsius. When such tap water is refilled into an aquarium during a drought, the warm remaining water that had reached the drought level moves upwards, and the refilled cold water moves downwards due to the difference in specific gravity. and stabilize, and a boundary layer of different density is formed between them. Therefore, if the ultrasonic transducer is driven immediately after water is replenished, the ultrasonic waves will be reflected at the boundary layer, and the transducer itself will be irradiated with the ultrasonic waves, accelerating its deterioration and causing atomization in the early stages of operation. The efficiency will also be extremely low.

The present invention was made to solve the above-mentioned problems, and its purpose is to always store supplementary water separately from the main water tank equipped with an ultrasonic vibrator, and to receive water from a water source so that it can reach room temperature in advance. By configuring the above replenishment water, which is kept at the same level, to flow out into the main water tank, it is possible to prevent the formation of a boundary layer with a different density in the water as the main water tank is replenished with water. Therefore, it is an object of the present invention to provide an ultrasonic humidifier that can prevent the reflection phenomenon of ultrasonic waves at the boundary layer, thereby preventing early deterioration of the vibrator, and also preventing a drop in atomization efficiency immediately after water replenishment. .

Hereinafter, the content of the present invention will be specifically explained by using each embodiment with reference to the drawings. In FIGS. 1 to 3 showing the first embodiment, 1 is an outer box, and 2 is a case for an atomization chamber that is detachably attached to the left half of the upper opening of the outer box 1 in FIG. , 3 is a water source kunku which has a handle 4 and is housed in the right half. The ceiling surface of the atomization chamber case 2 is provided with an ejection tube section 5 that communicates with the inside thereof. Now, inside the outer box 1, there is formed a mounting table part 6 for placing the water source tank 3, which is located approximately in the right half thereof, and in the left half part there is formed a structure that sinks in from the mounting table part 6. A water receiving chamber 7 is formed integrally with the outer box 1. This water receiving chamber 7 is formed by a main water tank 8 and an auxiliary water tank 9 located on the left and right sides in FIG. The structure is such that the main water tank 8 is depressed from the bottom wall 8a of the main water tank 8 so as to open at the bottom wall 8a of the tank 8. A valve opening protrusion 10 is provided at the center of the upper surface of the mounting base 6.
The valve port socket 11 having a diameter and the first water supply channel 12 communicating therewith are formed in a concave shape, and the inlet portion 1
A second water supply channel 13 that communicates with the terminal end of the first water supply channel 12 is formed in the mounting table section 6 so as to be oriented vertically, and the outlet section 13b at the lower end thereof is connected to the auxiliary water tank 9. Communication is provided by opening near the inner bottom. On the other hand, the lower part of each bottom of the water receiving chamber 7 in the outer box 1 is a machine room 14,
Electrical components 15 are placed here. This electrical equipment 15
, 16 is an ultrasonic vibrator for atomization, and this is inserted into an opening 17 formed in the bottom wall 8a of the main water tank 8.
The holding frame 18 and the sealing member 1
9, it is attached by screwing means. 2
0 is an oscillation device that is placed in the machine room 14 and drives the ultrasonic transducer 16. 21 is machine room 1 at the bottom end
A ventilation passage is formed on the inside of the outer box 1 to be separated from the water receiving chamber 7 so as to communicate with the inside of the water receiving chamber 7. At the upper end of this passage, there is a ventilation passage rising above the water receiving chamber 7 at one side thereof. The cylindrical portion 22 is formed integrally with the outer box 1. Reference numeral 23 denotes a blower consisting of a motor 24 and a fan 25 provided in the machine room 14, and is configured to blow air from the machine room 14 through the ventilation passage 21 and out of the ventilation cylinder portion 22. 26 is a water level switch, which consists of a float 28 equipped with a permanent magnet 27 that moves up and down according to the water level, and a reed switch 29 provided at a position where the permanent magnet 27 faces across the bottom wall 8a of the main water tank 8. When this reed switch 29 is turned on due to proximity to the permanent magnet 27, the drive of the ultrasonic transducer 16 is stopped. Note that 30 is a guide member that guides the vertical movement of the float 28. The water source tank 3 has a similar structure to a so-called cartridge tank, and has a valve body 31 fitted in the valve socket 11 on the lower wall thereof. Inside is a normally closed valve that is pushed open by a valve opening protrusion 10. In such a configuration, the auxiliary water tank 9 has a volume equal to or larger than the amount of water between the specified water level W ₁ and the drought water level W ₂ of the main water tank 8, that is, the amount of replenishment water, which will be understood later. It is determined.

In use, the water source tank 3 containing water is placed on the mounting table 6 at the position indicated by A in FIG.
The internal valve is fitted with a valve opening protrusion 10.
It becomes open state. Therefore, the water in the water source tank 3 flows out from the valve body 31 through the valve socket 11 into the first water supply channel 12, and from there, the water flows into the inlet section 13a of the second water supply channel 13 and the second water supply channel 13. The auxiliary water tank 9 is connected via the water supply channel 13 and its outlet 13b.
It is leaked inside. Therefore, the water receiving chamber 7 is an auxiliary water tank 9
After the main water tank 8 becomes full, the first water supply channel 1
The water is filled up to the specified water level _W1 , which is approximately the same height as the inner bottom surface of No.2. On the other hand, the atomization chamber case 2 is covered with the ventilation tube part 22 at the position shown by B in FIG. When a power switch (not shown) is turned on in this state, the ultrasonic vibrator 16 and the blower 23 are driven, and the main water tank 8 is driven by the ultrasonic waves.
A column of water with mist forms on the surface of the water. The mist surrounding the water column is discharged into the room from the inside of the atomization chamber case 2 through the ejection cylinder part 5 along with the wind discharged from the ventilation cylinder part 22. The water consumed in the main water tank 8 due to such humidification operation is transferred from the water source tank 3 to the valve body ₃₁ , the first water supply channel 12, and The water is sequentially supplied to the main water tank 8 via the second water supply channel 13 and the auxiliary water tank 9. However, after the water in the water source tank 3 is exhausted, the water level in the main water tank 8 is gradually lowered as the humidification operation progresses, and the water level in the main water tank 8 is gradually lowered to a predetermined minimum water level, i.e., when the ultrasonic transducer 16 is empty. When the drought water level _W2 , which is determined as the minimum water level required to prevent overcooking, is reached,
The reed switch 29 is the permanent magnet 2 of the float 28
7, the driving of the ultrasonic transducer 16 is stopped. In this state, the main water tank 8 is inside the auxiliary water tank 9.
The amount of replenishment water necessary to fill the water from the drought water level W ₂ to the specified water level W ₁ remains, and the water temperature is the same as the remaining water in the main water tank 8 and the room temperature where the humidifier is installed. They are almost at the same level. Now, in order to replenish the main water tank 8 with water, tap water is supplied to the water source tank 3 that has been removed from the outer box 1, and when this is placed again on the mounting base 6 of the outer box 1 as described above, the water source tank 3 The cold water, which has approximately the same temperature as the tap water inside, flows from the valve body 31 to the first water supply channel 12 and the second water supply channel 13.
is supplied from the lower part of the auxiliary water storage tank 9 through the outlet part 13b, and along with this supply, the warm water, which is approximately the same temperature as the room temperature and which has been stored in the auxiliary water storage tank 9 as supplementary water, is supplied to the upper end of the auxiliary water storage tank 9. Water is sequentially poured into the main water tank 8 from the open portion, and the main water tank 8 is replenished to a specified water level _W1 . In this way, the water replenished into the main water storage tank 8 is at approximately the same temperature as the indoor temperature, and therefore the temperature of the remaining water in the main water storage tank 8.
Moreover, since the amount of replenishment water stored in advance in the auxiliary water tank 9 is approximately equal to or greater than the amount that should be replenished in the main water tank 8, the water is supplied from the water source tank 3 to the auxiliary water tank 9. Cold water rarely flows into the main water tank 8, and even if the cold water gathers too much force and flows into the main water tank 8, the auxiliary water tank 9 Since the main water storage tank 8 is located at a low position, the cold water that once flows into the main water storage tank 8 is gradually returned to the auxiliary water storage tank 9 due to the difference in specific gravity. In this way, a boundary layer due to the density difference between cold water and warm water does not occur in the water in the main water tank 8 after refilling, and therefore, the ultrasonic vibration is generated immediately after the water in the main water tank 8 is refilled. Even when the transducer 16 is driven, the ultrasonic waves are reflected by the boundary layer and the ultrasonic transducer 16 itself is irradiated, accelerating its deterioration, and the humidification efficiency at the initial stage of operation is reduced due to the reflection phenomenon. In addition to reliably preventing water from getting wet, the water temperature in the main water tank 8 remains as warm as the room temperature even after water replenishment. Deterioration can be prevented. The cold water supplied from the water source tank 3 to the auxiliary water storage tank 9 and stored there is then gradually warmed to room temperature.

Next, regarding the second embodiment, FIGS. 4 and 5 show the same parts as in FIGS. 2 and 3 with the same reference numerals.
This will be explained with reference to the figures. In this second embodiment, the water receiving chamber 7 has a flat inner bottom surface, and a partition wall 32 rising from the inner bottom surface divides the inside of the water receiving chamber 7 into left and right parts, with one of them being the main part. A water storage tank 33 is used, and the other is used as an auxiliary water storage tank 34.
A recessed communicating portion 35 is formed by cutting down from the upper edge of the partition wall 32, and the height of the lower edge of this communicating portion 35 is set to be slightly lower than the specified water level _W1 . Even in the above configuration, the inside of the main water tank 33 is at the drought water level W ₂
When the main water storage tank 33 reaches the specified water level W ₁ , the amount of replenishment water that should be refilled to the specified water level W 1 is stored in the auxiliary water storage tank 34 at approximately the same temperature as the remaining water in the main water storage tank 33 . As the cold water immediately after being replenished into the water source tank 3 is supplied into the auxiliary water tank 34 from the outlet 13b of the second water supply channel 13 located at the lower part thereof, the warm water in the auxiliary water tank 34 increases. Replenishment water is flowed out from the communication portion 35 into the main water tank 33, and as a result, it is possible to prevent the formation of a boundary layer in the water of the main water tank 33 in which ultrasonic waves are reflected, as described above.

As described above, even if the remaining water in the main water storage tank equipped with an ultrasonic transducer is replenished with new water during the drought water level, the difference between the remaining water and the replenished water can be reduced. To provide an ultrasonic humidifier that can reliably prevent the formation of a boundary layer where ultrasonic waves are reflected, thereby preventing early deterioration of the vibrator and temporary decrease in atomization efficiency. can.

[Brief explanation of the drawing]

Figures 1 to 3 show a first embodiment of the present invention, in which Figure 1 is an overall perspective view, Figure 2 is a perspective view of the main parts inside the outer box, and Figure 3 is a perspective view of the main parts inside the outer box. In Figure 2-
It is a sectional view taken along a line with the atomization case removed, and FIGS. 4 and 5 are views corresponding to FIGS. 2 and 3, respectively, showing the second embodiment. In the figure, 1 is an outer box, 2 is a case for the atomization chamber, 3 is a water source tank, 8 is a main water tank, 9 is an auxiliary water tank, 10
1 is a valve opening protrusion, 11 is a valve socket, 12 is a first water supply channel, 13 is a second water supply channel, 16 is an ultrasonic vibrator, 20 is an oscillator, 22 is a ventilation tube, and 23 is a blower. , 26 is a water level switch, 31 is a valve body, 32
is a partition wall, 33 is a main water tank, 34 is an auxiliary water tank,
35 is a communication section.

Claims (1)

[Scope of Claims] 1. A main water tank equipped with an ultrasonic vibrator for atomization at the bottom, and a predetermined amount of replenishment water is always stored in communication with the main water tank, and when the main water tank is out of water, and an auxiliary water tank that receives water from a water source and drains the replenishment water into the main tank, and has a specified water level in which a specified amount of water is stored in the main tank, and a specified water level in which a specified amount of water is stored in the main tank, and a specified water level in which a specified amount of water is stored in the main tank. An ultrasonic humidifier characterized in that a drought water level is determined at which a small amount of water remains in the water, and the volume between the specified water level and the drought water level is approximately equal to the volume of the auxiliary water tank. 2. The main water tank and the auxiliary water tank are formed by being separated by a partition wall, and the two tanks are communicated with each other by a communication part formed at the upper part of the partition wall. An ultrasonic humidifier according to claim 1. 3. The ultrasonic humidification according to claim 1, characterized in that the auxiliary water tank is formed at a lower position than the main water tank, and its upper end is opened near the bottom of the main water tank. vessel.