JP2016211768A - Fog generating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fog generating device for generating fog floating over a wide range and in turn for preventing its surrounding area from being immersed with water dropping down.SOLUTION: A fog generating device comprises: an inner body 12 having one or a plurality of open-holes [h] arranged in a peripheral direction, storing liquid W at a lower inside location than the open-holes [h] and also having an opening at a location above the open-holes [h]; and an outer body 11 having a bottom wall and a side wall 111 arranged outside the open-holes [h] and spaced apart from the open-holes [h]; and an atomization units 14 for applying ultrasonic vibration to the liquid W stored in the inner body 12 to atomize the liquid W. The open-holes [h] are made in such a way that upper ends [h1] defining the open-holes [h] are located above upper edges 111t of the side wall 111 to cause fog generated at the atomization units 14 to be flowed toward outside.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a fog generating device that generates fog using ultrasonic vibration.

  When displaying fresh foods such as vegetables and fresh fish in a venue where no outdoor stalls or showcases are set up, it is necessary to humidify the fresh food to prevent it from drying out and causing pain. In summer and the like, it is preferable that the temperature can be lowered. Furthermore, if a display effect such as giving freshness can be produced, it is possible to expect an increase in sales of the product.

  Therefore, it is conceivable to use a mist generating device (see, for example, Patent Documents 1 and 2) including an atomization unit that applies ultrasonic vibration to the stored liquid to atomize the liquid. In the fog generating device described in Patent Documents 1 and 2, ultrasonic vibration is applied to the liquid in the liquid storage tank that is sealed except for the duct connection port by the atomization unit, and the liquid is atomized and connected to the duct connection port. Mist is released from the duct.

JP 2014-57952 A JP 63-54573 A

  However, in the mist generation device described in Patent Documents 1 and 2, it is difficult to generate a mist that a large amount of dense mist is discharged only in the direction facing the discharge port of the duct and drifts over a wide area. is there. In addition, the water that has returned to the liquid at the discharge port of the duct may drip from the discharge port and the surroundings may be submerged.

  In view of the above circumstances, an object of the present invention is to provide a fog generating device that generates fog that drifts over a wide range, while the surroundings are not submerged by dripping water.

The fog generator of the present invention that solves the above-mentioned object is
One or a plurality of through-holes are provided in the circumferential direction, the liquid is stored below the through-hole, and an inner body having an opening above the through-hole;
An outer body having a bottom wall and a side wall spaced apart from the through hole outside the through hole;
An atomization unit that atomizes the liquid by applying ultrasonic vibration to the liquid stored in the inner body,
The through hole is a hole in which an upper end of an edge defining the through hole is located above an upper edge of the side wall, and a mist generated by the atomization unit flows outward. .

  According to the mist generating apparatus of the present invention, the mist flows out from the through-holes provided in the circumferential direction, so that the mist can be supplied over a wide range. Further, when the mist flows out of the through hole, air is taken into the inner body from the opening located above the through hole, and such a flow continues in the inner body, and the mist continuously flows from the through hole. Flows out. In addition, since the space is secured, even if the water that has returned to the liquid through the through-holes drips from the through-holes, the water is received by the outer body, and the surroundings are not immersed in the water.

  The through holes may be holes that are connected in the circumferential direction, or may be a plurality of holes that are aligned in the circumferential direction.

  Further, the opening may have a total area larger than a sum of opening areas of all the one or more through holes provided in the inner body. By doing so, sufficient air can be taken in from the opening, and fog can flow out from the through hole at a suitable speed.

Moreover, in the fog generator of the present invention,
The through-hole may be a hole in which a lower end of an edge defining the through-hole is positioned at a height higher than an upper edge of the side wall.

  By doing so, the through hole is not blocked at all by the side wall, and mist naturally flows out from the through hole like a waterfall. In addition, when the height of the side wall is made constant, the higher the installation height of the through hole, the more liquid storage can be ensured.

Moreover, in the fog generator of the present invention,
The inner body may have an inflow opening opened along an upper edge of the through hole wall provided with the through hole.

  That is, the inflow port corresponds to an opening located above the through hole, and the flow in the inner body is easily ensured.

  In addition, the said inflow port may be opened toward upper direction, and may be opened toward the same direction as the said through-hole.

Moreover, in the fog generator of the present invention,
The inner body has a cylindrical shape having an upper end opening that opens upward,
A top plate that closes a part of the upper end opening may be provided.

  When ultrasonic vibration is applied to the liquid by the atomizing unit, the liquid may jump up in some cases, but by providing the top plate, it is possible to prevent the splashed liquid from overflowing to the surroundings. .

Moreover, in the fog generator of the present invention,
The inner body may communicate with the outer body below the through hole.

  When the inner body and the outer body communicate with each other, the liquid that hangs down from the through hole and is received by the outer body is re-supplied to the atomization unit as a liquid to be atomized, which is efficient. .

  According to the present invention, it is possible to provide a mist generating device that generates a mist that drifts over a wide range while the surroundings are not submerged by dripping water.

It is a perspective view which shows the fog generator of 1st Embodiment of this invention. (A) is a front view of the fog generator 1 shown in FIG. 1, (b) is the right side view. (A) is a top view of the fog generator 1 shown in FIG. 1, (b) is a figure which shows a top plate. It is a figure which shows typically a mode that the fog generated by the atomization unit flows out through a through-hole. It is a figure which shows typically the example at the time of changing the height of a side wall. It is a perspective view which shows the fog generator of 2nd Embodiment of this invention.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view showing a fog generating device according to a first embodiment of the present invention.

  The fog generator 1 shown in FIG. 1 has a rectangular shape and is long on the left and right. Hereinafter, the diagonally left front side of FIG. 1 is referred to as a front side, and the diagonally right front side of the paper surface is referred to as a rear side.

  The fog generating device 1 has an outer body 11 and an inner body 12. The outer body 11 has a side wall 111 and a bottom wall 112. The inner body 12 is housed inside the outer body 11 and is placed on the bottom wall 112 of the outer body 11. The inner body 12 protrudes upward from the outer body 11 by a little more than half (for example, 120 mm) of the total height (for example, 200 mm) of the inner body 12. The inner body 12 has a rectangular tube shape including a front wall 121, a rear wall 122, a left wall 123, and a right wall 124, and has an upper end and a lower end that are open. Hereinafter, the upper end opening is referred to as an upper end opening.

  Fig.2 (a) is a front view of the fog generating apparatus 1 shown in FIG. 1, and the same figure (b) is the right side view.

  As shown in FIG. 1, a plurality of circular through holes h are provided in a row in the circumferential direction (left-right direction) in each of the front wall 121 and the rear wall 122. The diameter of the through-hole h should just be 8 mm or more and 16 mm or less, and the diameter of the through-hole h shown to Fig.2 (a) is 12 mm. An interval s between the through holes h arranged in the circumferential direction (left and right direction) is larger than the diameter of the through hole h, and is 2 times or more (for example, 25 mm) of the diameter of the through hole h in FIG. The through hole h shown in FIG. 2A is a hole that penetrates the front wall 121 and the rear wall 122 in the horizontal direction, but may be a hole that penetrates obliquely. For example, a hole penetrating upward or a hole penetrating downward may be used. The left wall 123 and the right wall 124 are not provided with through holes h, but the left wall 123 and the right wall 124 may also be provided with through holes h.

  Fig.3 (a) is a top view of the fog generating apparatus 1 shown in FIG. 1, and the same figure (b) is a figure which shows a top plate.

  The upper end opening 12hu of the inner body 12 is located above the through hole h and opens upward. Further, at the upper end of the inner body 12, ribs 125 that connect the front wall 121 and the rear wall 122 are provided at two locations. A top plate 13 shown in FIG. 3B is placed on the upper end of the inner body 12 so as to block a part of the upper end opening 12hu. The top plate 13 includes a cover portion 131 extending in the left-right direction, and a left-side stop portion 132 and a right-side stop portion 133 that are orthogonal to the cover portion 131, respectively. As shown in FIG. 1, the top plate 13 is placed on the upper end 123u of the left surface wall 123, the upper end 124u of the right surface wall 124, and the two ribs 125, and the left stopper 132 is disposed at the upper end opening 12hu (FIG. 3 ( The right-side stopper 133 is fitted to the right end on the opposite side and the cover 131 is prevented from being displaced. The cover part 131 shown in FIG. 1 extends in the left-right direction at an intermediate position in the front-rear direction at the upper end of the inner body 12, and is disposed so as to cover at least the atomization unit 14 described later. In a state where the cover 131 is placed at an intermediate position in the front-rear direction, a front inlet 121 h and a rear inlet 122 h are formed at the upper end of the inner body 12. The front inflow port 121h is opened upward along the upper edge of the front wall 121 corresponding to an example of a through hole wall provided with the through hole h, and the rear inflow port 122h is also a through hole. An opening is formed upward along the upper edge of the rear wall 122 corresponding to an example of the through-hole wall provided with h. In the present embodiment, the inner body 12 and the top plate 13 are separate bodies, but may be integrated.

  As shown in FIG. 2A, the inner body 12 can store the liquid W in a portion inside the through hole h and below the through hole h. That is, the liquid W is stored in the space above the portion surrounded by the inner body 12 in the bottom wall 112 of the outer body 11. The liquid W here is water unless otherwise specified, but may be one other than water or one obtained by dissolving an additive (for example, a salt of about 3%) in water. An atomizing unit 14 is disposed in a position in the bottom wall 112 of the outer body 11 surrounded by the inner body 12 with a posture inclined by about 7 degrees with respect to a horizontal plane via an installation plate 1121. As shown in FIG. 2 (a), two atomization units 14 are arranged in total, two on the left and right sides, and the two left atomization units 14 are inclined to the other side, and the right two The two atomizing units 14 are also inclined to each other. By arranging the atomization unit 14 in an inclined posture, atomization can be performed efficiently. Each atomizing unit 14 includes an ultrasonic vibrator 141 coated with a glass material, and power is supplied from a commercial power source (not shown) through a power cord 142. 2 and 3, the power cord 142 is indicated by a one-dot chain line. The power cord 142 is supported on each of the two ribs 125 of the inner body 12. The power source may be a primary battery or a secondary battery. In the atomization unit 14, the ultrasonic vibrator 141 applies ultrasonic vibration to the liquid to atomize the liquid. The appropriate water level that can be atomized efficiently is a water level that is 20 mm or more and 35 mm or less above the ultrasonic transducer 141. The center of the through hole h shown in FIG. 2A is located 50 mm or more and 60 mm or less above the ultrasonic transducer 141. The atomization unit 14 includes a water level sensor 143, and the water level sensor 143 can detect that the liquid has run out or that the atomization unit 14 has been taken out of the liquid. When the atomizing unit 14 detects that the liquid is exhausted or removed from the liquid, the driving of the ultrasonic vibrator 141 is stopped, and the ultrasonic vibrator 141 is prevented from being damaged. The atomizing unit 14 may be provided with an LED that is lit during driving.

  The side wall 111 of the outer body 11 surrounds the lower half of each of the front wall 121, the rear wall 122, the left wall 123, and the right wall 124 from the outside. That is, the portion of the side wall 111 of the outer body 11 that is opposed to the front wall 121 is arranged outside the plurality of through holes h provided in the front wall 121 and spaced from the through holes h. . In other words, it is arranged outside the front wall 121 and spaced from the front wall 121. Further, the portion facing the rear wall 122 is arranged outside the plurality of through holes h provided in the rear wall 122 and spaced from the through holes h. In other words, the rear wall 122 is disposed outside the rear wall 122 with a space. The interval is greater than 0 mm and less than or equal to the diameter of the through hole h (for example, 10 mm).

  Of the side wall 111 of the outer body 11, the portion facing the left wall 123 is disposed outside the left wall 123 with a space from the left wall 123, and the portion facing the right wall 124 is the right wall 124. It is arranged on the outer side with a space from the right surface wall 124. In this embodiment, neither the left wall 123 nor the right wall 124 is provided with the through hole h, and the interval between the portions facing the wall where the through hole h is not provided (here, the horizontal interval). ) May be narrower than the interval (here, the interval in the front-rear direction) facing the walls (here, the front wall 121 and the rear wall 122) provided with the through holes h. In the present embodiment, the distance in the left-right direction is a tolerance range that allows the inner body 12 to be smoothly inserted into the outer body 11 (for example, about 2, 5 mm).

  The through hole h provided in the front wall 121 and the through hole h provided in the rear wall 122 are provided at the same height position, and the height of the side wall 111 of the outer body 11 is the same at any location. That's it. As shown in FIG. 2A, each through hole h has an upper end h <b> 1 of an edge defining each through hole h positioned above the upper edge 111 t of the side wall 111. Further, the height position of the lower end h <b> 2 of the edge defining each through hole h coincides with the height position of the upper edge 111 t of the side wall 111.

  FIG. 4 is a diagram schematically illustrating how the mist generated by the atomization unit flows out through the through hole. In FIG. 4, the thickness of each wall is shown to be thicker than the actual thickness.

  FIG. 4A is an example in the fog generating device 1 shown in FIG. 1, and the side wall 111 of the outer body 11 is provided with a gap sp with respect to the through hole h provided in the front wall 121. . This interval sp is longer than zero and shorter than the diameter of the through hole h. 4A shows a state in which the inner body 12 is placed on the bottom wall 112 of the outer body 11, and the bottom wall 112 of the outer body 11 and the front surface of the inner body 12 are shown. A gap is formed between the lower end 121d of the wall 121 so that liquid oozes out, and the water level between the side wall 111 of the outer body 11 and the front wall 121 of the inner body 12 and the inner side of the front wall 121 are increased. The water levels are consistent. That is, when viewed microscopically, the outer body 11 and the inner body 12 communicate with each other below the through hole h.

  The mist generated by the atomizing unit 14 shown in FIG. 2 flows out through the through hole h. In FIG. 4, the flow of fog is indicated by a thick gray solid arrow. When the mist flows out from the through hole h, air is taken into the inside of the inner body 12 from the front inlet 121h located above the through hole h. In FIG. 4, this air flow is indicated by a gray dotted arrow. In the mist generating apparatus 1 of the present embodiment, when the mist flows out from the through hole h, the flow of air taken into the inside of the inner body 12 from the front inlet 121h continues, and the mist flows out from the through hole h continuously. The opening area of the front inlet 121h is larger than the sum of the opening areas of all the through holes h provided in the front wall 121, and sufficient air can be taken in from the front inlet 121h and at a suitable speed from the through hole h. The fog begins to flow. Moreover, since the through-hole h is provided in a line in the circumferential direction (left-right direction), fog can be supplied over a wide range. Further, as described above, the height position of the lower end h2 of the edge defining the through hole h coincides with the height position of the upper edge 111t of the side wall 111, so that the through hole h is not blocked by the side wall 111 at all. The mist naturally flows out like a waterfall from the through hole h, and then the mist drifts with a natural feeling along the floor surface F on which the mist generating device 1 is placed. Furthermore, since the space sp is ensured, even if the water that has returned to the liquid in the through hole h hangs down from the through hole h, the front wall of the inner body 12 is represented by the thin black solid arrow. The surrounding floor surface F does not become soaked by the water that flows down between the side wall 111 and the front wall 121 along the surface of the outer body 11 side of 121 and falls down. Moreover, as described above, the outer body 11 and the inner body 12 communicate with each other below the through-hole h, so that the water flowing between the side wall 111 and the front wall 121 is illustrated as a liquid to be atomized. 2 is re-supplied to the atomizing unit 14 shown in FIG. In addition, when ultrasonic vibration is applied to the liquid W by the atomization unit 14, the liquid W may jump up in some cases. However, since the top plate 13 is provided, the atomization unit 14 is covered directly above. The part 131 is located, and it is possible to prevent the splashed liquid from overflowing around.

  As described above, the mist flows out from the through hole h provided in the front wall 121, using FIG. 4A, but the mist also flows out from the through hole h provided in the rear wall 122. According to the mist generation device 1 of the embodiment, it is possible to generate a mist that drifts in a natural feeling over a wide range in each of the front and rear directions.

  FIG. 4B shows a first comparative example in which the side wall 111 and the front wall 121 are in contact with each other, and the distance between the side wall 111 and the through hole h is zero. In the first comparative example shown in FIG. 4B as well, the through holes h are provided in a line in the circumferential direction (left-right direction), so that fog can be supplied over a wide range. Moreover, the said flow in the inner side body 12 also continues, a mist flows out from the through-hole h naturally continuously like a waterfall, and mist drifts along the floor surface F on which the mist generating apparatus 1 was placed after that. However, since the interval is zero, as indicated by the thin black solid arrow, the water that has returned to the liquid through the through-hole h is accumulated at the upper end of the side wall 111 and drops off from the upper end of the side wall 111. It flows out along the surface and the surrounding floor surface F is immersed in water.

  In FIG. 4C, the side wall 111 of the outer body 11 is provided with an interval sp ′ wider than the interval sp shown in FIG. 4A with respect to the through hole h provided in the front wall 121. An example is shown. The interval sp ′ shown in FIG. 4C corresponds to an interval twice the diameter of the through hole h. Even in the example shown in FIG. 4C, since the space is provided between the side wall 111 and the through hole h, the surrounding floor surface F is immersed in water as in the first comparative example shown in FIG. Although the interval is too wide, the mist flowing out of the through hole h cannot pass over the side wall 111 and hits the upper end portion of the side wall 111 and temporarily stays between the side wall 111 and the front wall 121. is there. However, even if the mist stays here, the mist continues to flow out of the through hole h, so the staying mist is pushed out by the mist coming out of the through hole h, and will soon pass through the side wall 111. The mist over the side wall 111 drifts along the floor surface F.

  Note that if the distance between the through-hole h and the side wall 111 exceeds twice the diameter of the through-hole h, the retention time of the mist staying between the side wall 111 and the front wall 121 tends to be long, so care must be taken. is there. As the residence time between the side wall 111 and the front wall 121 becomes longer, the retained mist is likely to contain liquid moisture stored between the side wall 111 and the front wall 121. Unlike the mist atmosphere generated by the atomization unit 14 shown in FIG. 2, the mist containing moisture tends to be difficult to naturally drift along the floor surface F after passing the side wall 111.

  FIG. 5 is a diagram schematically illustrating an example when the height of the side wall is changed. Also in FIG. 5, the thickness of each wall is shown to be thicker than the actual thickness.

  FIG. 5A shows an example in which a side wall 111 ′ is provided below the through hole h. Also in the example shown in FIG. 5A, the through holes h are provided in a line in the circumferential direction, so that fog can be supplied over a wide range. Moreover, the said flow in the inner side body 12 also continues, a mist flows out from the through-hole h naturally continuously like a waterfall, and mist drifts along the floor surface F on which the mist generating apparatus 1 was placed after that. However, if the side wall 111 ′ is too low, it is difficult to secure an appropriate water level of the atomizing unit 14, and the liquid in the storage space communicating below the through hole h can be efficiently atomized. It is necessary to pay attention to this point as it may not be possible.

  FIG. 5B is an example in which the upper end h <b> 1 of the edge that defines the through hole h is positioned slightly above the upper edge 111 t of the side wall 111. In the example shown in FIG. 5 (b), the fog flows out naturally and continuously from the through hole h like a waterfall. A part of the mist flowing out from the through hole h drifts along the floor surface F beyond the side wall 111. However, although there is a mist that does not pass over the side wall 111 and stays at the upper end portion of the side wall 111, the mist is pushed out by the mist coming out of the through hole h and can cross the side wall 111 soon. Since the upper end portion of the side wall 111 is considerably higher than the stored water level and the residence time is very short, the mist staying here contains the moisture of the liquid stored between the side wall 111 and the front wall 121. There is almost nothing, and the fog over the side wall 111 drifts along the floor surface F.

  FIG. 5C is a second comparative example in which the upper end h1 of the edge that defines the through hole h is located considerably below the upper edge 111t of the side wall 111. In this second comparative example, since the side wall 111 is too high, all the mist flowing out of the through hole h cannot pass over the side wall 111 and stays between the side wall 111 and the front wall 121, and many mists are here. It will be liquefied. As a result, there is almost no fog over the side wall 111, and it becomes difficult to make the fog drift along the floor surface F. In addition, if the side wall 111 is high beyond the through hole h, it is expected that the liquid to be atomized will be put in too much, and the stored water level of the liquid will exceed the through hole h. When this happens, the through hole h is submerged, and the mist generated by the atomization unit 14 does not flow out of the through hole h, rises from the front inlet 121h and the rear inlet 122h, and drifts along the floor F. Will have a completely different atmosphere.

  FIG. 6 is a perspective view showing the fog generating apparatus according to the second embodiment of the present invention.

  In the following description, differences from the fog generation device of the first embodiment that has been described so far will be mainly described, and overlapping descriptions may be omitted. Moreover, the same code | symbol as the code | symbol used until now is attached | subjected and demonstrated to the component of the name same as the name of the component of the fog generating apparatus of 1st Embodiment.

  The fog generating device 1 shown in FIG. 6 is cylindrical and has an outer body 11 that opens upward and an inner body 12 that opens downward. That is, the outer body 11 has a bottom wall 112 in addition to the cylindrical side wall 111 but has an open upper end, and the inner body 12 has a top wall 126 in addition to the cylindrical peripheral wall 120 but has a lower end. Is open. The inner body 12 is housed inside the outer body 11, and the center of the cylindrical side wall 111 in the outer body 11 and the center of the cylindrical peripheral wall 120 in the inner body 12 are aligned with each other. Is placed on the bottom wall 112 of the outer body 11.

  The cylindrical peripheral wall 120 in the inner body 12 is provided with one through hole h in the circumferential direction. The through-hole h has a shape in which the perfect circles are partially overlapped and joined, and only the front half is shown in FIG. 6, but it circulates to about 350 °. In addition to this, the through-holes may be two through-holes that circulate about 175 °, or the circular through-holes h may be arranged in the circumferential direction at intervals as in the first embodiment. . Further, the through-hole may be a slit-shaped one or a plurality of through-holes. Furthermore, a plurality of through holes may be provided in the vertical direction.

  Moreover, although the top wall 126 is provided and the upper end of the inner body 12 shown in FIG. 6 is closed, the inflow port 120h is provided in the surrounding wall 120 along the upper edge 120t of the surrounding wall. The inflow port 120h is an arc-shaped slit provided above the through hole h and slightly below the upper edge 120t. Although only two are shown in FIG. 6, a total of four are provided. It has been. These four inflow ports 120h are opened in the same direction as the direction in which the through hole h is opened (outward direction). The total opening area of these four inlets 120 h is larger than the opening area of one through hole h provided in the inner body 12.

  Furthermore, notches 120c are provided at predetermined intervals below the lower end of the peripheral wall 120 shown in FIG. 6, that is, below the through holes h. The notches 120c are communication holes between the outer body 11 and the inner body 12. Function as.

  The upper edge 111t of the side wall 111 in the outer body 11 is lower than the upper end h1 of the edge that defines the through hole h. Further, the upper edge 111t of the side wall 111 is slightly lower than the lower end h2 of the edge defining the through hole h, but conversely may be slightly higher than the lower end h2.

  The cylindrical side wall 111 in the outer body 11 and the cylindrical peripheral wall 120 in the inner body 12 are spaced apart, and the side wall 111 of the outer body 11 is separated from the through hole h of the inner body 12 to the outside. ing.

  In addition, in FIG. 6, the atomization unit is not shown, but in the fog generation device 1 of the second embodiment, a plurality of atomization units are arranged inside the inner body 12 at equal intervals in the circumferential direction. It may be installed, or one atomizing unit may be installed in the center of the inner body 12. The fog generated by the atomizing unit (not shown) flows out through the through hole h. Also in the mist generating device 1 of the second embodiment, when the mist flows out from the through hole h, the flow in which air is taken into the inside of the inner body 12 from each of the four inflow ports 120h continues. Since the fog continuously flows over a wide range from the through-hole h that has circulated to about 350 °, the fog can be generated over the entire 360 ° circumference. The mist flowing out of the through-hole h drifts with a natural feeling along the floor surface on which the mist generating device 1 is placed. Further, in the fog generating device 1 of the second embodiment, since a space is secured between the side wall 111 of the outer body 11 and the peripheral wall 120 of the inner body 12, the water that has returned to the liquid through the through hole h is passed through the through hole. Even if it falls from h, it flows between the side wall 111 and the peripheral wall 120, and the surrounding floor does not become flooded by the dripping water.

  The fog generator 1 shown in FIG. 1 and the fog generator 1 shown in FIG. 6 described above generate fog that drifts over a wide range. As a result, the surroundings of the fog generating device 1 can be humidified, and drying and pain of leafy vegetables and the like can be prevented. Further, it is possible to produce a display effect such as giving freshness due to the fog drifting over a wide area. Furthermore, the cooling effect by the heat of vaporization can also be expected. In addition, if salt water is used as the liquid, it is possible to suppress discoloration of fresh fish.

  In addition, compared with the mist generation device 1 shown in FIG. 6, the mist generation device 1 shown in FIG. 1 can reduce the processing cost and the like, and can be provided at a low cost.

DESCRIPTION OF SYMBOLS 1 Fog generator 11 Outer body 111 Side wall 111t Upper edge 112 Bottom wall 12 Inner body 12hu Upper end opening 121 Front wall 121h Front inlet 122 Rear wall 122h Rear inlet h Through hole h1 Upper end h2 Lower end sp interval 123 Left side wall 124 Right Face wall 13 Top plate 14 Atomization unit 141 Ultrasonic vibrator 142 Power cord 143 Water level sensor W Liquid

Claims (5)

One or a plurality of through-holes are provided in the circumferential direction, the liquid is stored below the through-hole, and an inner body having an opening above the through-hole;
An outer body having a bottom wall and a side wall spaced apart from the through hole outside the through hole;
An atomization unit that atomizes the liquid by applying ultrasonic vibration to the liquid stored in the inner body,
The through hole is a hole in which an upper end of an edge defining the through hole is located above an upper edge of the side wall, and a mist generated by the atomization unit flows outward. Fog generator.   2. The fog generating device according to claim 1, wherein the through hole is a hole whose lower end of the edge defining the through hole is located at a height higher than the upper edge of the side wall.   The mist generating device according to claim 1 or 2, wherein the inner body has an inlet opening along an upper edge of a through-hole wall provided with the through-hole. The inner body has a cylindrical shape having an upper end opening that opens upward,
The fog generating device according to claim 1, further comprising a top plate that covers a part of the upper end opening.   The fog generator according to any one of claims 1 to 4, wherein the inner body communicates with the outer body below the through hole.