JPS6346364A - Humidifier - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] (a) Industrial application field This invention is a humidifier suitable for humidifying a large space such as inside a refrigerated showcase where fresh foods such as vegetables and fruits are stored and displayed for a long period of time. Regarding equipment.

(b) Conventional technology Conventionally, in the above-mentioned refrigerated showcase, for example,
As disclosed in Japanese Patent No. 5-46383, a humidifier equipped with an ultrasonic vibrator is disposed at the front end of the upper part of a partition plate that forms a cold air passage inside the heat insulating wall of the showcase body,
The mist generated by this humidifier is supplied to the cold air passageway upstream of the cold air discharge port via the diffuser.

(c) Problems to be solved by the invention However, since the humidifying device with the structure described above atomizes water using one ultrasonic vibrator, it is difficult to humidify a large space such as the inside of a refrigerated showcase. tended to lack capacity. Further, even when a diffuser is used in combination, it is difficult to uniformly humidify a large internal space. Of course, these problems can be solved by using a plurality of humidifiers, but this has the drawback of increasing costs.

This invention was made in view of the above-mentioned facts, and allows a single humidifier to cover a wide space sufficiently and approximately uniformly.
The purpose is to enable humidification.

(d) Means for Solving Problems The present invention has a hollow box-like main body, a plurality of ultrasonic transducers arranged at the bottom along the longitudinal direction, and an oblong shaped main body provided inside the main body. an atomizing water tank, a blower provided in the main body and sucking outside air from a suction port of the main body and supplying it into the atomizing water tank, and a mist generated in the atomizing water tank by driving the ultrasonic vibrator. and a plurality of outlet pipes for conveying outside air supplied from the blower to the outside of the main body,
The outlet pipe is configured to be freely rotatable.

With this configuration, a large amount of mist can be generated by a plurality of vibrators, and this mist can be transported outside the main body by a blower, making it possible to obtain a sufficient amount of humidification with one humidifier. Moreover, since the outlet tube is rotatable, by directing the outlet tube in an arbitrary direction, a wide space can be thoroughly and substantially uniformly humidified.

(f) Examples Examples of the present invention will be described below. In Figure 1, (1
) is a refrigerated showcase formed with an opening (2) formed in the front, and a partition plate (5) that forms a cold air passage (4) with the inner wall surface of the heat insulating wall (3) is arranged to form a cold air passage (4). A cooler (6) and a blower (7) are placed in the lower space inside the storage room (8), and multiple shelves (
9) Equipped with (9). (10), m) is the aperture (
2) are air outlets and inlets formed at the upper and lower ends of the storage chamber (8), and the air cooled by the cooler (6) is forcibly circulated as shown by the arrow by the blower (7>) to cool the inside of the storage room (8). While opening (
2) forms an air curtain.

Next, the humidifying device (12) of the present invention will be explained in detail.

(13> is the circumferential side plate (14), top plate (15> and bottom plate (1)
6) etc., the humidifier body is formed into a horizontally elongated and hollow housing shape, and the left and right side walls (14a) of the circumferential side plate (14>)
) (14b) has a fixing piece (1) for mounting and fixing the main body (13) on the top surface of the refrigerated showcase (1).
7) (17) is formed by bending, and screw holes (1B) (18)... are bored in the fixing piece (17). (1
9) connects the upper end flange portions (20) (20) to the top plate (1).
5) An atomizing water tank made of a stainless steel plate that is installed on one side of the main body (13) by spot welding to the lower surface, and the atomizing water tank (19) has an open top surface and is not visible in plan view. It is formed into a substantially horizontally long rectangular shape, and the bottom wall (19a
), the ultrasonic transducers (21) (21)... are placed in the water tank (1).
9) Four through holes (22) (22)...
are perforated in the longitudinal direction at predetermined intervals. (21)
(21)... are the above-mentioned ultrasonic transducers that are liquid-tightly installed on the lower surface of the bottom wall (19a) corresponding to the through holes (22), (22)... The child (21) is in the aquarium (
The ultrasonic oscillator (23) thermally mounted on the front wall of the
) (23)..., and a water column (24
) (24)... to generate fine particle mist. (25) is a water pipe (26) in the water tank (19).
) is a water supply pipe that supplies water from the water tank (19), and has an electromagnetic on-off valve (27) interposed at a suitable location in the main body (13), and has a water supply port (25') on one side of the water tank (19). It also faces the upper part. (28) is a first float switch installed on one side of the water tank (19).
When the float descends, it detects the lack of water inside the tank, and the transducer (
This is to prevent the vibrator (21) from being damaged due to no-load vibration. (29> is a second float switch disposed on the other side of the water tank (19), which opens the electromagnetic on-off valve (27>) when the water level in the water tank (19) falls below a predetermined position; This is for replenishing humidifying water into the water tank (19) from the water supply port (25゛). (30) is an overflow pipe provided so that the upper end opening is located approximately at the center of the water tank (19). This overflow?(30
) to prevent overflow.

(31) is a lid plate that closes the upper opening of the water tank (19), and the float switch (28) (29) is provided on the bottom surface of the lid plate.
) to prevent the influence of waves caused by the drive of the vibrator (21) on the vibrator (21). Four circular holes (34) corresponding to each of (21)
(34)... is bored, and this cover plate (31) is
It is removably attached to the inward facing pieces (20') (20') formed on the short side of the upper end of the water tank (19) using screws (35) (35). (36) (36)・... is a water tank (1) with its lower end inserted into each of the circular holes (34) of the lid plate (31) so as to face the vibrators (21), (21)...
9) A hollow cylindrical lead-out pipe that hangs down inside, and a number of annular protrusions (37) (37)... are formed on the outer periphery in the middle, forming a so-called bellows shape. Article (37) (37
)... is completely formed, the outlet pipe (36) is bendable, so that it is bent in a substantially inverted shape so that the connection port (38) at the upper end opens sideways. (39) is an elastic seal packing such as an O-ring fitted to the outer periphery of the outlet pipe (36), and the seal packing (39) is attached to the cover plate (31) at the periphery of the circular hole (34). It is held between the upper surface and the annular protrusion (37) at the bottom of the outlet pipe (36) to prevent the mist in the water tank (19) from leaking directly through the circular hole (34) (40). is the lid plate (31
) to the rising pieces (31a) (31a) of screws (41) (
41) A stop plate that is fixed at..., the stop plate (40)
is a groove (3) between the annular protrusions (37) of the outlet pipe (36).
7') four engaging notches (42) (42).
... are formed to prevent each of the outlet pipes (36) passing through the cover plate (31) from coming out. Each of the outlet tubes (36) is rotatable as shown by the arrow in FIG.

(43) is a cross-flow type blower disposed approximately in the center of the other side of the main body (13);
), a cross flow fan (45), and a motor (46) that fully drives the fan (45), and the main body (13)
The outside air is sucked in through the filter (48) from the suction port (47) provided on the right peripheral side wall of the fan case (44).
The air is sucked into the fan case (44) from the bottom side of the fan, and is forced into the water tank (19) through the air outlet (49). (50) is the suction port (47) and the blower (43).
) is a power transformer placed between the transformer (50
) is adapted to be cooled by airflow drawn into the fan case (44).

(51) is opened in the upper part of the tank wall of the water tank (19) so as to correspond to the air outlet (49) of the air blower (43) and to be located above the lower end opening of the outlet pipe (36). The ventilation flow population (51) is formed in a horizontally elongated shape as shown in FIG. 7, and its left and right end portions are allowed to open wider in the vertical direction than the center portion. (
52) is a horizontal guide plate located slightly below the air flow population (51) and provided between the water tank (19) and the air outlet (49) of the blower (43); A vertical guide plate is installed and fixed on the horizontal guide plate (52), and the vertical guide plate (53) (53) extends from the air outlet (49) toward the air flow population (51) as shown in FIG. The vertical guide plates (53) (53
) and the horizontal guide plate (52) form an air passage (X) between the air blower (43) and the water tank (19). Also, (5
4) is a power plug, and (55) is a power switch.

Thus, the main body (
13) is mounted and fixed on the upper surface of the refrigerated showcase (1) by screwing the fixing pieces (17) (17), as shown in FIGS. 1 to 3, and then the outlet pipe ( 36) to point the connection port (38) in any direction, and connect one end of the communication piping (56) (56) made of flexible pipe to the connection port (38). After connecting, connect the other ends of each of the communication piping 56) to the refrigerated showcase (1
) can be connected to the through pipes (57) (57) that can be supported through the insulation wall (3) on the upper surface at a predetermined interval, or the other end of each of the communicating pipes (56) can be insulated. wall (3
) may be inserted directly into the hole drilled in the hole. In order to perform uniform humidification, it is desirable that the respective communication pipes (56) communicate with each other at approximately equal intervals in the lateral direction of the cold air passage (4). Furthermore, connect the water supply pipe (26) to the water supply pipe (25).
There is also a drain pipe (58) in the overflow pipe (30).
The installation work can be completed by connecting the power plugs (54) to an outlet (not shown) provided at a suitable location such as the refrigerated showcase (1).

Next, the operation of the humidifying device according to the present invention will be explained. When the power switch (55) is turned on, the air blower ff1 (43) and the ultrasonic oscillator (23) are activated, and the outside air is forced through the air outlet (49) of the air blower (43).
The water enters the atomizing water tank (19) from above, and a water column (24) is generated on the water surface by driving the ultrasonic vibrator (21). When the air from the blower (43) flows into the outlet pipe (36), the fog generated around the water column (24) passes through the outlet pipe (36) and the communication pipe (56) to the through pipe (57). ) into the cold air passage (4) of the refrigerated showcase (1), joins the cold air flow in the cold air passage (4), and is blown out from the Suita mouth (10) into the storage room (8), where it acts as a humidifier. Since the mist is generated using a plurality of vibrators (21), the amount of humidification can be sufficiently increased.

When the water level in the water tank (19) decreases, the second float switch (29) is activated by the lowering of the float!
The magnetic on-off valve (27) is opened and water is supplied from the water supply pipe (25) into the water tank (19) to raise the water level again. Aquarium (
When the water level in the water tank (19) returns to the predetermined position, the second float switch (29) is activated and the electromagnetic on-off valve (27) is fully opened, and this operation is repeated to maintain the water level in the water tank (19). It looks like this.

If water is not supplied even though the water level has fallen below a predetermined level due to a failure of the electromagnetic on-off valve (27), the first float switch (28) is activated to stop the oscillator (23), and the vibrator (21) This prevents damage caused by dry firing due to no-load operation.

In addition, the wind from the blower (43) flowing into the water tank (19) from the air flow population (51) is made wider at both ends of the air flow population (51) than at the center, so four derivations are made. Of the pipes (36) (36)..., the ait that enters the outlet pipes on both the left and right ends does not become less than the inner outlet pipe, and therefore enters the respective outlet pipes (36) (36)... This allows the air volume to be made uniform.

Furthermore, since the lead-out pipes (36), (36), etc. are rotatable, the connecting port (38> of the lead-out pipe (36) can be oriented in any direction as shown in FIG. 2. The large interior space of the showcase can be thoroughly and almost evenly humidified, and the curved portions of the fog transport path can be minimized, reducing ventilation resistance and moving the fog far away. It can be transported and the humidification effect can be performed efficiently even in a large refrigerated showcase.

(G) Effects of the Invention As explained above, this invention uses a plurality of ultrasonic transducers to generate a large amount of fog, and a blower transports this fog to the outside of the main body to perform humidification. The humidification capacity is greatly improved, and a large space can be sufficiently humidified using one humidifier. In addition, since the plurality of outlet tubes for guiding the mist generated by the vibrator out of the atomization water tank are rotatable, the outlet tubes can be directed in any direction.
It can humidify a large space almost evenly,
Humidification can be performed more economically and efficiently than when using multiple humidifiers.

[Brief explanation of the drawing]

FIG. 1 is a top perspective view of a refrigerated showcase with a humidifying device according to an embodiment of the present invention attached, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a longitudinal cross-sectional view of FIG. 1. Fig. 4 is a perspective view of the humidifying device of the present invention, Fig. 5 is a vertical cross-sectional view of the main part, Fig. 6 is a plan cross-sectional view of the main part, and Fig. 7 is a cutaway sectional view of the main part explaining the atomization water tank part. , FIG. 8 is an exploded perspective view of a partially cutaway portion of the cover plate. (12) Humidifier, (13) Humidifier body, (19) Atomization water tank, (21) Ultrasonic transducer, (36) (36) Derivation tube, (38
)... Connection port (opening), (43>... Feed J!l
, m, <47>... Suction port. Applicant: Sanyo Electric Co., Ltd. and 1 other agent Patent attorney: Takuji Nishino and 1 other person Figure 1

Claims (2)

[Claims] (1) A hollow box-shaped main body, a horizontally elongated atomizing water tank provided within the main body with a plurality of ultrasonic transducers arranged along the longitudinal direction at the bottom, and an oblong atomization water tank provided within the main body. and a blower that sucks outside air from the suction port of the main body and supplies it into the atomizing water tank, and a mist generated in the atomizing water tank by driving the ultrasonic vibrator and the outside air supplied from the blower. What is claimed is: 1. A humidifying device comprising a plurality of lead-out pipes for transporting the humidifier to the outside of the main body, the lead-out pipes being rotatable. (2) The humidifier according to claim 1, wherein the outlet pipe is a bent pipe having an opening in the lateral direction.